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1999 fourtrax 300 running rugh

3040 Views 20 Replies 4 Participants Last post by  shadetree
hello I recently perches'ed a 1999 honda fourtrax 300 4X4 and it was burning oil so I got a gasket kit and took the engine apart removed the old gaskets and seals and installed the new ones then put it back together and adjusted the timing then I went to start it and I had to give it a bit of throttle for it to start and the it would run really rough. Why? It allways ran vary well and smooth.
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I bib not clean the carb after I had the motor apart. The timing I think is correct. I bib not check the valve clearances. The piston rings looked good.
Piston looks good as well
What are the valve clearances
I'm pretty sure I got the timing wrong so I'm going to work on it today
Well I was right the timing was off so I got it right and it still ran a little rough so I cleaned the carb and now it runs great. Compression cold is 180 psi and hot is 170 psi thanks for your help
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