Honda TRX 400EX - Doesn't want to start - Honda TRX Forum
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post #1 of 2 Old 08-31-2016, 03:28 PM Thread Starter
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Unhappy Honda TRX 400EX - Doesn't want to start

Hi everybody,

I made repairs to the engine of my TRX 400ex 2007, I changed the piston and valves. Small engine job, because he no longer start. After all changed, I tried it and he start, but do a strange noise. I re-adjusted the valves and tried to start it. Without success.
While I adjust the valves before it will not start.
I thought it was the coil, so I changed it.
There are current before reached the coil. When I plug the coil, there is no longer current. The motor rotates but does not start.
What do you think it can be?
Help me please.

Last edited by Mysticmymy; 08-31-2016 at 03:41 PM.
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post #2 of 2 Old 08-31-2016, 06:01 PM
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My first guess is you didn't get the cam timed right and bent the valves - check the compression - with the throttle held wide open, you should get something over 120psi within 3 to 5 compression strokes
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