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Discussion Starter #1
I have a 1999 honda trx400ex i cannot get it to start its in time has spark complete top end rebuild all new exhaust new cdi new coil an plug new stator new rectifier an it keeps sucking air in the exhaust an blow everything out the back of the carb i was told its out of time so i reset the timing like 6 different times an still continues to suck air in thru the exhaust it has 180psi of compression this is the 400ex ive ever owned or worked on
 

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is it some how turning over backwards ??? from the electric start ?. if not ?, then your timing is wrong.
 

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Discussion Starter #3
Idk i havent checked that yet an i thought the starter gear is a 1 way gear an if it spins backwards then it shouldnt turn the crank
 
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