What does it mean when a motorcycle backfires through the carburetor?
Motorcycle backfire is something that happens when a motorcycle engine gets too much fuel or air. Bikes comes setup so that the carburetor (or fuel injection system on modern bikes) provides the correct ratio of fuel and air, to allow the bike to run at its best.
What kind of rebuild kit does a Mikuni use?
Repair Kit for MK BSR 33mm Carburetor Rebuild Kits with Diaphragm Yamaha Big Bear Bruin MK-BSR33 Product Description & Features: Fits for 2000-2004 Yamaha Big Mikuni Super BN SBN Carb Rebuild Kit Jet Ski 38 44 46 Seadoo Yamaha 451460 Product Description & Features: Fits: 1995-1998 Polaris Magnum 425 2×4/4X4;
What’s the flow rate of a Mikuni carb?
This owner opted for the HSR45 Easy Kit. The stock Harley CV40 carburetor flows about 185 CFM (cubic feet per minute) when flow is measured at a pressure difference of 12 inches of water. All the Mikuni carb HSR series flow considerably more:
What kind of carburetor do I need for my Mikuni hog?
For this type of set up, the Mikuni HSR42 carburetor is a perfect fit. 2) Highly modified — A hotter cam, professional cylinder head port work, a more specialized or tunable exhaust system, high compression pistons. The Mikuni HSR45 carburetor is your best choice.
What does a Mikuni adjustable accelerator pump do?
Mikuni’s roller bearing throttle slide offers smoother throttle control and allows the use of a lighter throttle return spring for reduced throttle effort. The Mikuni adjustable accelerator pump provides instant throttle response in any riding or performance application.
Where does a Mikuni HSR engine come from?
Your Mikuni HSR comes from the factory with the tuning parts we found to work with the great majority of engine performance modifications. However, the large number of differing after market exhaust and air cleaner systems makes it virtually impossible to accommodate all possible combinations with one carburetor set-up.
What should I know before tuning my Mikuni?
If you have any doubts about the general condition of your engine, have it checked by your dealer or an experienced mechanic before attempting to fine-tune your Mikuni. AIR LEAKS: We have found that Harley-pattern engines tend to develop minor air leaks between the manifold and heads.
What kind of filter does a Mikuni use?
KHS-020 For Evo engines, HSR42/45/48 carbs and Mikuni filter. Includes improved chrome banjo fittings and vent bolts. KHS-030 For TC88 engines, HSR42/45/48 carbs and Mikuni filter. Includes improved chrome banjos, vent bolts and brackets.
What are the parts numbers of a Mikuni throttle cable?
Throttle Cables Mikuni HSR42/45/48Individual Carburetors Part numbers for individual carburetors: Carburetor Natural Part Number Polished Part Number HSR42 TM42-6 TM42-6P HSR45 TM45-2 TM45-2P HSR48 48-2 48-2P Note: TM42-6 applications use the stock Harley choke cable.