2007 trx420fm - Honda TRX Forum
 
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post #1 of 3 Old 04-16-2019, 11:20 PM Thread Starter
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2007 trx420fm

Ok so i have 07 420 4x4 that came in with hard cold starts so i adjusted the valves and now it cranks better but the throttle hesitates when u floor it ( i dont remember if it did it before i didnt drive it much beforehand)
Anyways it pops and back fires and dies out at random . I did a comp check and its reading 60 i have checked and rechecked the valve adjustment and changed the plug and i am at a complete loss and ideas.....
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post #2 of 3 Old 04-17-2019, 03:04 PM
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Are you checking compression with the throttle held wide open?
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post #3 of 3 Old 04-17-2019, 03:23 PM Thread Starter
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No i didnt might need to try that thank u
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