How to Tune Motorcycle Carburetors
While you love riding your motorcycle, you might not enjoy tinkering with its engine or bothering to understand how the engine works. However, even motorcycle owners who usually turn to a trusted mechanic for repairs and upkeep can learn to tune their motorcycles' carburetors themselves. With the right guidelines, a little practice, and some time, you can save yourself the mechanic's tuning fee, helping to keep the motorcycle functioning at its best.Things You'll Need
- Carburetor cleaner
- Rag
- RPM gauge
- Screwdriver
Instructions
- 1Clean the carburetor by spraying it with carburetor cleaner. Use a clean rag to wipe away the cleaner. A clean carburetor will enable your motorcycle to idle smoothly.
- 2Turn the engine on. Let it idle until the engine feels warm. Look on the side of the carburetor barrel for the mixture screw. You will find it 2/3 down from the barrel top and it will be sticking out straight from the barrel.
- 3Remove the vacuum hose that connects to the carburetor. Connect an RPM gauge to the spot where the vacuum hose attaches. The RPM gauge must have the ability to show readings of at least 1400 RPMs.
- 4Twist the mixture screw with a screwdriver to the right. Continue until the engine sounds like it is at high idle, at about 1400 RPMs.
- 5Turn the screw back to the left slowly. Continue till you hear the engine reach the point right before it would cut off. This should be about 1000 RPMs.
- 6Remove the gauge and reattach the vacuum hose to check the engine. If the motorcycle fails while idling, adjust the screw to the right to where the gauge reads closer to 1100 RPMs.
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Tips & Warnings
- Park the motorcycle on flat, even pavement while working on it.
- Make sure the motorcycle is not too hot to the touch before beginning tuning.
Read more: How to Tune Motorcycle Carburetors | eHow.com http://www.ehow.com/how_7587944_tune-motorcycle-carburetors.html#ixzz2ExFApGme
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