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eric1528
03-21-2010, 05:09 PM
i have a 06 honda 450er. it has a 13.5 to 1 piston.stage 2 hot cam. white bro exu. open air box. it has a 175 main jet.48 pilot. 58 leak. heres the problem. it starts great when it is cold. if it runs for 5 min and gets hot it will not start inless you pop start it.. i just got it shimed before ice racing and it would start fine. the problem started at the end of last year..thought it was fixed after shiming it.but now that the weather is nice.same problem.....PLEASEs HELP!!!!!!

airmobile101
03-21-2010, 05:38 PM
Still sounds like a shim issue to me.

MR4Engine202
03-22-2010, 03:43 PM
yeaa deff sounds like improper clearance...could be time for new valves