Question about 2004 Yamaha V Star Silverado
Backfiring when slowing down is usually caused by leaking exhaust gaskets in the head, or head pipe to muffler connection. A lean condition on the front cylinder could be dirt in the carburetor. Although the bluing in the pipe could be caused by unburned fuel from a malfunctioning choke mechanism on the front carburetor or leaving the choke on too long. Often the the pinging is caused by ethanol in the fuel you are using. Your bike should be designed to run on 87 Octane regular unleaded style gas. If you have non-ethanol style fuel available in your area , I would run a tank of non-ethanol fuel with a dose of Chevron Techron fuel system cleaner in the tank. Inspect the choke mechanism is working correctly and replace your exhaust gaskets.
Posted on Nov 03, 2010
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Posted on Jan 02, 2017
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