SOURCE: 2007 650 yamaha vstar popping through the rear cylinder exhaust
First off did you buy it new? Second has it gone through its break in tune up yet?Did you do the re jeting? My guess is it was re jeted wrong & neeeds to be re jeted again or could also need more air(upgraded air kit) or a tfi or power comand fuel mod.My bike also poped untill I did the air & fuel upgrades & them upgrades will also give you a much needed house power needed for this rig.
Bring it to a shop & have it looked at.......
Good luck
SOURCE: 1990 yamaha virago 535 sat two years
If it is possible to start at all. Fresh fuel fresh engine oil good battery. You may have the following problems; Corroded and blocked carburetor fuel system, bad wire connections piston ring set up.... I hope it was kept indoors and the fuel was drained out before it was left sitting. Good luck, they are nice bikes.
SOURCE: Exhaust header pipes getting glowing red hot
the pilot jet is too only make the bike idle so it wouldnt be this is the engine have lots of oil in the engine
Testimonial: "I haven't thought of that but I will put a little more oil in it and try it again. Will let you know the results later. Thanks"
SOURCE: what would cause a 2003 yamaha raptor 350 to
Either way too lean, or air intake leak, or the cam timing is out.
Does it help with the choke on?
Not certain of the timing on that model, but at top dead centre there should be some marks on the cam sprockets that will line up with the rocker gasket surface. The previous owner may have changed the timing by a tooth or two to try for more performance .
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