Mikuni carburetor diagram. Mikuni VM34SS is the OEM carburetor of the Yamaha SR500.

Mikuni carburetor diagram O-Ring, Needle Valve KV/10 002-709: 12. But, it is activated by opening the choke plunger and subjecting the choke tube to a very strong pressure differential (partial vacuum) from the downstream side of the closed throttle. The document provides specifications for carburetor tuning on a Mikuni BSR 42mm carburetor including: - Main jet is a 150, pilot jet is 45, needle jet is 6CGY07-060-3, pilot screw is set to 2. It includes labels and annotations to help identify and understand the various elements of the carburetor. If you are referring to item 13 in the carburetor parts diagram (see image below) I already replaced it. On this page you will find all currently available parts for the Mikuni BDST range carburetors. RUBBER CAP, THROTTLE CABLE All Mikuni VM Series Carbs VM26/46 (SKU 002-061) 2. The Kit replaces vital components in the BSR33 Carburetor including a new Float Needle Valve Assembly, Gaskets, Seals, Diaphragms, Springs and Float Bowl Screws to return the stock Mikuni BSR33 Carburetor to like-new operation. Vintage Snowmobile Carburetor Vintage Mikuni Carburetor eBay. 8 size and 2. See the parts list and diagr am below. MIKUNI CARB PARTS Change break-in oil and filter at 20 hours or miles, whichever comes first. 5 (SKU 002-707) 41. 40/44PHH N115. Mikuni Carb Sizes. 2410 S. When using a Mikuni-Solex carburetor diagram, it’s important to refer to the specific model and variant of the carburetor being used. Check it out now! DIAGRAM A Exploded view of a MIKUNI CARBURETOR '9 23 26 (not all parts listed are available) Exploded Of the FLANGE MOUNT FLOAT 3SA Main Jet Extender Disassembly and Cleaning of a Mikuni Round slide Carburetor Disassembly We will not be completely disassembling the carburetor. Metering Circuits by Percentage of Throttle Opening: Flow Chart of Internal Air, Fuel & Mixture How to Identify Parts in Diagrams Understanding the components depicted in technical illustrations is crucial for effective maintenance and troubleshooting. Get step-by-step diagrams and explanations to help you troubleshoot and repair your Timberwolf 250's carburetor. All kits are sold each, select the same amount of kits as you have carburetors to service. carburetor, air will rush inside the carburetor and engine until the pressure is equalized. Check Valve (Clear) BN34/107 007-492: 13. pdf. Apr 5, 2019 · And here's one for those with the Mikuni BSR cv vacuum slide carburetor. These overlapping systems control the fuel and air mixture entering the carburetor between 1750-4500 RPM. HS40 (TM40-6) Accessories; HS40 (TM40-6) Carb Parts; RS Smoothbore Kits (Multi cylinder) Mikuni RS Smoothbore Kits; RS Carb Accessories; RS Carb Features; RS Carb Parts; TM Flatslide Pumper Carbs. Understanding the components and functions of this carburetor is essential for proper maintenance and tuning. Does not include Needle Valve Mikuni No. Dealer's Application Jan 23, 2018 · All things considered, the round-slide Mikuni is an excellent carb, with a wide range of tuning capabilities. Use both hands on the Dremel to avoid it kicking back. Enhancing the performance of your engine can often be achieved through the meticulous refinement of its fuel delivery system. We have taken the exploded views and made them easy to see and read. The main jet screws into the bottom of the needle jet and acts like a 'bolt" to hold it in the carb body . Identify the flow of fuel and air, noting where each component fits into the system. TM33 Carb. Jan 9, 2007 · The choke in a typical Mikuni carb is similar in that it has a long tube that reaches almost to the bottom of the float bowl. Mikuni_MK-BN38-44-SPR_Rebuild_Kit_Diagram. Dealer's Application HSR Early Version Carb Parts; HS40 Early model Harley Carb. Understanding the diagram of the Mikuni HSR42 carburetor and its components can aid in troubleshooting fuel delivery issues and optimizing the engine’s performance. It is known for its reliability and performance. By adjusting the jets, float level, and other parts, users can fine-tune the carburetor to match their specific engine requirements and riding conditions. A Mikuni 34shvt carburetor diagram is a visual representation of the internal components and their connections in a Mikuni 34shvt carburetor. 95 Add to cart; Mikuni Carburetor – Fuel Pipe Assembly – “T”. The Mikuni BN38 diagram is an essential tool for understanding the inner workings of the Mikuni BN38 carburetor. Sequoia Drive Compton, CA 90220 . com/motorcycle-air-intake-and-fuel-systems?utm_source=youtube&utm_medium=description&utm_campaign=Anatomy_of_Mikuni_Ca Feb 26, 2025 · Hello all, recently i bought a set of mikuni carbs that came off a triple, for the price of less than one replacemeby amal, so i could not refuse. 176 $ 5. VM40 Parts List. Tuning Tips & Manual Downloads . BN46i-42-B4. 028 $ 79. Rebuild Kit for Mikuni Super BN 38 and 44mm Carburetors with Pulse Fuel Pumps used in many personal watercraft applications. Each component plays a vital role in delivering the right amount of fuel to the engine for combustion. 5 turns out, pilot air jet is 110 - Float height should be between 13-14mm, the carburetor uses a fuel pump, and requires 87 octane fuel minimum. Exploded view of carburetor parts 1. 00/ea. Not sure what you mean by needle seat o-ring. The BST34 suffers from a malady not seen in other carb designs. The accompanying diagram shows which jetting circuits in the AS Series Carburetors are the principal operating circuits Sudco International Corp. Important Rebuild kit for Mikuni BST36 carburetors. Additionally, it’s important to have a basic understanding of carburetor operation and tuning to effectively use the diagram. Description. Reading the Mikuni Carburetor Diagram. Understanding its diagram is crucial for proper maintenance, tuning, and troubleshooting. Locknut, Cable Adjuster All Mikuni VM Series Carbs B30/247 002-065: 4. 95 BUY NOW! Mikuni 38mm TMX Carburetor for 250cc race engines (47mm Spigot) TM38-27. Our Contact Page can be found HERE. This is for the Mikuni Performance Carburetor referenced below in the exploded view diagram $9. If you're looking to replace your OEM carb with a genuine Mikuni carb, you'll find Niche Cycle Supply and MAP Cycle will have what you need. This is a Must Have for Mikuni PHH Carburetor Maintenance and Tuning! This is a copy of the original Mikuni PHH Carburetor Service Manual, with permission from Mikuni American Corporation. Click on the links to view the diagrams of BN, HS, HSR, RS, TM, VM and VM18 models. 00 /ea Pilot (Idle) Jets are $ 4. The Mikuni carburetor is made up of several key components that work together to provide reliable and high-performance engine fuel delivery. Tel. This carburetor will fit all Compatible with Seadoo 951 jet boats. In the code or designation of a Mikuni carburetor like HSR 42 or TM 42, HSR or TM indicates the design of the carburetor and 42 indicates the bore (internal diameter) size (in mm) on the engine end of the carburetor (your carburetor has two ends, one end is connected to the engine (engine end) and the other end is connected to the air filter (air filter end)). This informative guide helps Yamaha owners understand the inner workings of their carburetor and troubleshoot any issues they may encounter with their motorcycle's performance. Feb 8, 2023 · Another way to identify a Mikuni carburetor is by its connection to the engine. The Mikuni VM carburetor diagram illustrates the various parts and their locations within the carburetor body. The Mikuni 44mm carburetor is a high-performance carburetor commonly used in motorcycles and other small engines. These elements directly impact the engine’s performance and fuel efficiency. Use our Mikuni carburetor replacement parts finder to find exactly what you need. Carb sizing is denoted by the kit prefix number, with larger The Mikuni CV carburetor can be tuned via 3 methods, the main jet that controls fuel flow during full acceleration, the needle clip position that controls fuel flow during cruising and roll on throttle, and the mixture screws that regulate fuel flow during idle conditions. Buy OEM Parts for Yamaha ATV 2003 CARBURETOR Diagram My Garage CARBURETOR ASSY 1 5ND-14101-00-00 Unavailable 2 NEEDLE SET 5ND-1490J-00-00 ** carburetor diagrams & parts list * KEIHIN PARTS DIAGRAMS & PARTS LIST (1669) * SERVICES (11) CARBURETORS (498) CONTROL (132) FAQ / TUNING (1) INTAKE BOOT / FLANGE (3) KAWASAKI (0) MIKUNI TMR / TDMR (0) NORTON- (0) SELL YOUR FCR (0) SUZUKI (0) TUNING (1) HECKLER KOCH PARTS / HK PARTS KITS (6) The Mikuni 38mm flat slide carburetor is a popular choice among motorcycle enthusiasts for its high performance and reliable fuel delivery. HSR Early Version Carb Parts; HS40 Early model Harley Carb. There are three tunable parts in the idle circuit: Mikuni Carb Diagrams, Parts, & Gasket Lists. It also discusses identifying Mikuni Type 18-22mm, 2 Stroke 49-100cc, Eton-Polaris-Adly Others Buy OEM Parts for Polaris ATV Carburetor AcAgAhAlAtFb Diagram. Inside a carburetor is a venturi, fig 1. needed, first refer to the carburetor specification chart in this manual and check if your carburetors are equipped with the recommended jetting for your particular AS Series Carburetor and motorcycle applications. Metering Circuits by Percentage of Throttle Opening: Flow Chart of Internal Air, Fuel & Mixture Sudco International is the world's leading source for Mikuni Carburetors, Parts and Tuning Components for any motorsports application. 2. 5 Needle Vlv Assy 002-982 : Mikuni Carb Fuel Line Diagram: A Step-by-Step Guide. 90 $ 10 . Mar 27, 2015 · This a factory Compatible with Mikuni 46mm i series replacement carburetor for all Compatible with Seadoo 951 dual Carburetor model engines. Learn how to adjust the throttle, air/fuel mixture, and idle speed for optimal performance and fuel efficiency. Mikuni Carb Parts Diagram Mikuni Bs34 . Mikuni carburetors are typically attached to the engine using a single bolt or a small clamp, which is located on the carburetor’s mounting flange. You can also find jets and parts easily. 0 © 2001 Short Block Technologies Mikuni jets HSR42 HSR45 HSE48 NEW STYLE carb carburetors and parts . Each component plays a crucial role in delivering the right amount of fuel and air mixture to the engine. Mikuni Flat Slide Carburetor Diagram. Perfect for understanding the inner workings of your bike's engine. net Mikuni jets TM SERIES FLAT SLIDE carb carburetors and parts . 202 $ 39. Just take a look below the main image for real time stock availability, and pricing. If these screws seem stuck, do NOT force them , use penetrating lubricant, such as PB Blaster, and a heat gun on the carbbody, then try again. 1. By analyzing its various components, we can better understand how this carburetor works and how it contributes to the overall performance of the engine. Kit includes genuine Mikuni parts, items 1 - 16 from drawing to rebuild one carburetor body. You will get: all parts to fully rebuild 1 carburetor body. Check to be sure all springs are in good condition. PG11 Exploded Diagram; Product Catalog and Specifications. Mikuni 44mm Carb Diagram: A Comprehensive Guide. By focusing on specific components within this system, enthusiasts can unlock improved efficiency and responsiveness, making it crucial to understand the various elements involved. equipped with choke and tps . We are still very much expanding our parts offerings for these carburettors so please contact us by email if the part that you are looking for is not yet listed. Here is the breakdown of the BST34 carb used on the 95 Magnum 425 (the same carb was used on many other models with slight changes to the jetting and other 'metering' parts. 0 size are $ 25 /ea S4 & Type Q are $30/ea HSR42/TM42 Parts List. Understanding the fuel line diagram is essential for proper installation and maintenance of these carbs.   The list of parts shown is specific to the carburetor listed, and should not be assumed to fit similar models, especially older carburetors, and Mikuni carburetors that came as an OE part. TMX38-59 Parts Diagram .   Any product listed that is available in different sizes will allow a selection to be made Mikuni jets RS carb carburetors and parts . This makes Mikuni carburetors easy to install and remove for cleaning or maintenance, as well as easy to identify. This kit contains all parts to fully rebuild the OEM carburetor. This is part one, containing an "exploded" view, all labeled and diagrammed. See full list on wanderingbiker. Home FAQs/ tuning HSR48 Carburetor Rebuild Kits KHS-031 with 4. Here's a general overview: Description: 28/32: These numbers generally refer to the diameters (in millimeters) of the two throttle bores. Rebuild kit BN44 Square Pump Carb MK-BN38/44 SPR 025-651 025-651: 10. This diagram provides a detailed breakdown of all the components and their functions, allowing users to better understand how this carburetor functions and troubleshoot any issues that may arise. Remember to double-check all connections and routing before starting the engine to prevent any potential issues or damage. 34 Add to cart Please Note: Parts listed here are for 40 PHH and 44 PHH Mikuni Performance Automotive Aftermarket Carburetors sold by Mikuni USA. # From Diagram; Description: VM26: VM28: VM30: VM32: VM34: VM36: VM38: VM40: VM44: 1. So it appears to be working and there is no fuel in the vacuum line. (310) 637-8330 • Fax (310) 637-8331. The document recommends settings for adjusting the idle mixture screw and checking for air leaks if idle remains too high. A Mikuni flat slide carb diagram is a visual representation or schematic that shows the different parts and components of a Mikuni flat slide carburetor. Quick Links. 40PHH 44PHH #75 CW2=0525 $ 1. A huge number of vintage bikes come equipped with the good old round-slide Mikuni carb. 5 R ZTUOAUMA Carburetor Carb Rebuild Kit Compatible with Mikuni HSR42/45/48 Smoothbore KHS-016 for Harley Twin Cam Evo Big Twin Price, product page $10. TM36-68 Carb Parts; TM40-6 Carb. Order Help Carburetor A01ch50eb; Mikuni HS40 Tuning Manual, Exploded View and Parts List Figure 1: Diagram showing the effective range of the each tuning component of the Mikuni HS40 carburetor IDLE CIRCUIT (PILOT SYSTEM) The idle circuit supplies fuel at idle speeds and has a major influence on fuel flow up to 1/4 throttle. The pump squirts in pulses if you pull the line off the carb and crank it. Some of the most important parts of a Mikuni carburetor include: Carburetor Body: The carburetor body is the main component of the carburetor and houses all of the other parts Mikuni Carburetor Rebuild SBN Series v 1. Just off the press is their new 96 page 5th Edition Sudco Mikuni Carburetor Manual featuring the complete line of Mikuni RM, VM, HSR, HS, TM, TMX and BN Carburetors and Fuel Pumps with Parts Breakdown Diagrams, available Tuning Components, Tuning and Setup Please use exploded view diagram below of the 44PHH Mikuni carburetor for reference of item number comparison for the Solex PHH 50 Carburetor parts. MK-BN38/44, BN38. The smaller bore handles the primary or "idle" circuit, while Mikuni VM34SS is the OEM carburetor of the Yamaha SR500.   Any product listed that is available in different sizes will allow a selection to be made on Find the Yamaha Timberwolf 250 carb diagram and instructions for proper carburetor maintenance and tuning. Buying these parts from Triumph would cost you double This fits: a wide range of Triumph bikes with the OEM BST36 carburetors. Mikuni VM Carb Tuning Information. 41 Add to cart; Mikuni Carburetor – Throttle Shaft 44PHH #N107. The pilot jets on these seem to clog with alarming regularity - even with Feb 29, 2016 · The needle jet has a brass washer on the bottom that the main jet fits through. I don't think the video is that exact carburetor but it describes how that type of carb works. Mikuni jets HSR42 HSR45 HSE48 OLD STYLE carb carburetors and parts . The Mikuni 38mm Flat Slide Carb is a complex piece of machinery that is essential for fuel delivery in high-performance motorcycles. FREE SHIPPING ORDERS OVER $99 Mikuni Carburetor – Screw, FCC. HS40 (TM40-6 Buy OEM Parts for Polaris ATV 2001 Carburetor A01ch50eb Diagram . These mechanisms play a crucial role in mixing air and fuel to ensure optimal combustion, impacting performance and efficiency. Most carburetor circuits are governed by five main metering systems - the pilot circuit, throttle valve, needle jet and needle valve, main jet, and choke circuit. Our Mikuni parts finder may assist you in finding the replacement parts you need. Sudco International Corp. Screwdriver blade should be . SCREW Mikuni TM carburetor drawings Author: Ben Aylen Created Date: Aug 10, 2017 · I replaced the petcock with a raptor petcock just before rebuilding the carb. By following this step-by-step diagram guide, you can properly install a fuel line for a Mikuni carburetor and ensure optimal engine performance. Thanks for shopping with Niche Cycle Supply for all of your Mikuni carburetor needs. MAP Cycle has been providing vintage, British bike enthusiasts with parts (including Mikuni carb kits) for over 45 years, while Niche Cycle provides parts for Japanese, German, Italian, Spanish as well as The Mikuni carb fuel line diagram consists of several key components, including the fuel tank, fuel petcock, fuel filter, fuel pump, and carburetor. I guess I never thought about it, and always looking at the carb upside down on the bench doesn't help bring able to "see" or visualize how it works. VM34-275 Parts List. The Mikuni BST31SS carburetor is a high-performance component that plays a vital role in the fuel delivery system of motorcycles. Upgrading Mikuni Carburetor Parts. Top, Mixing Chamber, VM26 - VM28 spigot VM26/56 002 Apr 4, 2023 · Mikuni Carburetor Diagram. Overall, the Mikuni CV carburetor diagram serves as a valuable resource for motorcycle enthusiasts looking to understand and tinker with this essential component of their bikes. jpcycles. The picture is the exact carburetor you will get, please compare and match the carburetor to what you have. The Mikuni VM22 carburetor diagram is an essential tool for understanding and troubleshooting this popular carburetor model. Email: sudco@sudco. . Pilot Air Jet Front and Side view for the Mikuni VM Source: MikuniVM User Manual Throttle Valve and Needle jet. - The document contains an exploded view diagram of the Mikuni BS (CV) Carburetor Rebuild Tutorial Screwdriver blades need to fit snug into slots otherwise screw can get stripped. 1. This document discusses Mikuni BS34 carburetor tuning. The venturi is a restriction inside the carburetor that forces air to speed up to get. These instructions will only cover the disassembly required to do a thorough cleaning. Dealer's Application Dec 3, 2012 · Preventing gas draining when there is no vacuum. PLATE, NEEDLE VALVE 002-721 VM24/560 43. View attachment 221529 Remove the main jet and the washer, and the needle jet can be tapped up and out into the main bore of the carb . ) Removed carbs and stripped. The moving air going through the carburetor will pick up fuel and mix with the air. -A- Cable Adjuster All Mikuni VM Series Carbs (7mm) VM28/256 002-063: 3. Jul 8, 2015 · Carburetor - Mikuni BST36SS (Slingshot) Exhaust - Yoshimura Cyclone duplex Standard airbox (I think, but could also be a 86/87 GSXR 750 airbox as it is an 1100 built into an old 750 frame. My Garage . Get a detailed diagram of the Mikuni motorcycle carburetor. One major difference between the stock Carb and Mikuni is the throttle valve, the stock carbs comes with a butterfly type of throttle valve, whereas the Mikuni has a cylindrical throttle valve and goes up and down as you open or close the throttle. The Mikuni flat slide carburetor is a popular choice for many motorcycle and ATV enthusiasts due to its superior performance and tuning capabilities. Mikuni Carburetor Overview This section provides a comprehensive understanding of a specific type of fuel delivery device commonly used in various engines. Some items also fit Mikuni Solex Carburetors also referenced as PHH 40 / PHH 44 / PHH 50 PHH2 Early Type Q Solex Carburetors. 95 Add to cart; Mikuni Carburetor – Screw, Throttle Adjusting 40PHH #N101. The carburator should be tuned first by Jan 7, 2019 · I am in the middle of cleaning and rebuilding the carbs on my 1994 Bimota DB2 which is equipped with a standard Ducati 900SS engine and a pair of Mikuni BDST38-b67 Carburetors that all the mid 90's 750 and 900SS's had. The Mikuni Solex 28/32 carburetor is a dual-barrel carburetor made by the Japanese company Mikuni in partnership with the French company Solex. TM33 Carb Parts; TM36-68 Carb.   Any product listed that is available in different sizes will allow a selection to be made on (not all parts in this diagram are available) 42. Find diagrams of various Mikuni carburetors for motocross, drag racing and other applications. Different models may have slight variations in design and component placement. The Mikuni Kogyo carburetor diagram is a vital tool for understanding the workings of this popular carburetor. View attachment * keihin parts diagrams & parts list (1669) * services (11) mikuni tmr 41mm carburetor. Mikuni MK-BTM32-16 Carburetor Rebuild Kit is designed to fit Yamaha ATV applications where the OEM BTM32 Mikuni Carburetor is used. It shows the various chambers, jets, and passages that fuel and air flow through to create the correct air-fuel mixture for combustion in an engine. These visuals serve as guides, enabling users to pinpoint specific elements and their functions within a system. through. The following parts are currently in the carb (according to numbers stamped on parts): Emulsion tube: 615 O-9 Main jet: 122. Mikuni carbs are commonly used in motorcycles, ATVs, and other small engines. Home FAQs/ tuning Contact us Shipping expedited* TM38-3 STD MIKUNI# 786-46001-3. The diagram provides a detailed visual representation of the internal components and their functions, making it easier to identify and fix any issues that may arise. flat slide carb with accelerator pump. Mikuni Parts List & diagram; Mikuni Carburetor ID guide; Mikuni OEM Gasket kit list Main Fuel Jets and Air Jets are $ 4. Pay attention to the placement of the fuel jets, needle valves, and the choke mechanism. The Mikuni CV carburetor is a widely used carburetor in the motorcycle industry. Same size should work, plug one of the outputs and use a dual port pump. Learn about the features and specifications of Mikuni VM Series round slide single carburetors for motorcycles and ATVs. Begin by focusing on the main sections of the schematic. for Mikuni Super BN38 and Super BN 44 Carburetors as also found on Yamaha with Super BN44 and Sea-Doo with Super BN 38. Details. The carb needle valve also appears to be sealing because I can blow into a hose atteched to the fuel inlet with just the needle sitting in the seat. There are three tunable parts in the idle circuit: #DimeCityCyles #Mikuni #Carbs #motorcyclesWith almost 100 years in the game, Japanese firm Mikuni is one of the industry leaders in carburetion. Please Note: Other than exact replacement OEM carburetors, all Mikuni Aftermarket Carburetors and Tuning Components are sold “As Is” for Off Road / Racing Use Only and are not intended or approved for use on vehicles operated on Public Roads or in Locations where applicable engine tampering and anti-pollution laws apply. Precisely calibrated parts like the pilot screw, jets, and venturis work in conjunction with linkages and cables to regulate Includes very detailed diagrams and instructions. Analyzing the Components of the Mikuni 38mm Flat Slide Carb. FAQs/ tuning Contact us Shipping expedited* International shipping Search. Mikuni Carburetor Overview This section provides an essential understanding of a critical component in the fuel delivery system, highlighting its functionality, design, and significance in optimizing engine performance. Overall, having a good understanding of the Mikuni BST31SS carburetor diagram can help riders ensure their motorcycle is running smoothly and efficiently. HS40 (TM40-6 Mikuni BDST carburetor parts. com. Outside Slide Needle Float Pilot Jet Needle Jet Main Jet. Super BN Carburetor Rebuild Kit. These Mikuni Carburetors are also referenced as Type-R. Remove the 4 screws holding the float bowl to the carburetor body. From aircraf Shop Carb Parts : https://www. Pump Jets are $ 6. Apr 24, 2011 · Alrighty then fellow Mikuni sufferers, it's time to spread some info on the "neglected" carburetors, the Mikuni BS28s as fitted to the XJ550s, both Seca and Maxim. It lists Mikuni radial slide carburetor kits by number, the motorcycle engines they apply to, typical modifications needed, venturi and jetting specifications, and baseline settings for needles, jets and pilot screws. Just off the press is their new 96 page 5th Edition Sudco Mikuni Carburetor Manual featuring the complete line of Mikuni RM, VM, HSR, HS, TM, TMX and BN Carburetors and Fuel Pumps with Parts Breakdown Diagrams, available Tuning Components, Tuning and Setup The Mikuni TM33 carburetor rebuild kits contain all the necessary genuine Mikuni components to rebuild your TM33 carburetor. In fact, just about every Japanese bike from the 60s and 70s came with this mixer. Genuine Mikuni BSR33 carburetor rebuild kit for the OEM Mikuni BSR33 carburetor found on many popular ATVs. 5 Needle Vlv Assy 002-982 : Apr 14, 2021 · Many Polaris models use the Mikuni BST34 carb and many owners experience carb problems. -A- Cable Adjuster All Mikuni VM Series Carbs (6mm) M21/14 002-062: 2. Mikuni VM Carb Tuning Info: Mikuni VM Carburetor Diagrams & Charts. Yamaha application includes 1993-1995 Yamaha Kodiak 400 ATV, 1987-1995 Yamaha Moto 4 350 ATV, 1987-1998 Yamaha Big Bear 350 ATV, 1987-2004 Yamaha Warrior 350 ATV, 1995 Yamaha Wolverine 350 ATV. 90 FREE delivery Sat, Mar 8 on $35 of items shipped by Amazon This document provides Mikuni carburetor part numbers, applications, specifications, and standard tuning details. Also replaced the entire needle valve assembly (item 18 on carb parts diagram) which includes the o-ring. Genuine Mikuni from Japan, high quality parts. It provides guidance on interpreting idle RPM fluctuations as an engine warms up and potential causes of high idle such as lean conditions from adjustments, air leaks or dirty passages. Find the standard jetting settings and how to order custom jetted Mikuni carburetors. RUBBER CAP, throttle cable Mikuni HS40 Tuning Manual, Exploded View and Parts List Figure 1: Diagram showing the effective range of the each tuning component of the Mikuni HS40 carburetor IDLE CIRCUIT (PILOT SYSTEM) The idle circuit supplies fuel at idle speeds and has a major influence on fuel flow up to 1/4 throttle. Needle valves for both 40's and 44's - 1. 0385”thick at tip for removing pilot screw Mikuni VM Carb Tuning Info: Mikuni VM Carburetor Diagrams & Charts. Sudco International is the world's leading source for Mikuni Carburetors, Parts and Tuning Components for any motorsports application. 2. It is known for its superior fuel atomization and improved throttle response, making it a popular choice among enthusiasts and racers. Includes gaskets, o-rings, screws, and fuel overflow line however does not contain any jetting. Starting at the top and left side of the carburetor, we have the throttle shaft and lever, this is where the push-pull throttle cable hooks up to the carburetor. There are differences between the Mikuni Performance Aftermarket Carburetors and Mikuni Solex Original Equipment Carburetors (Type-S4, Type-S5, Type-T, Type-Q). These parts include the throttle valve, jet needle, main jet, pilot jet, and air screw. Function ofa carburetor The function of a carburetor is to produce combustible air-fuelmixture, by breaking fuel into tiny particles (in the form of vapor) and by mixing the fuel with air in a proper ratio, and to deliver the A Mikuni carb diagram Yamaha article provides a detailed visual representation and explanation of the components and their functions in a Yamaha motorcycle's Mikuni carburetor. Mount the carb securely in a vice or similar, place some sponge under the butterfly, position a strong light source on the top of the carb, and lock the butterfly into a useful position to use the Dremel. Mikuni Kogyo is a renowned Japanese company that specializes in the production of carburetors and other fuel system components for motorcycles, automobiles, and marine applications. mkblc sgslr umc ognrutei bleamj cqljlm wyj aprir skcln czj rfz ngfcng hoedko gboema gtn