Any experts on these? This one won't take any throttle until the engine is warmed up. Maybe takes 10 mins idling before it'll rev freely and run ok.Just splutters and stalls and misfires.Runs fine when warm. No carb...fuel injected,nothing to adjust. Have cleaned the air intake control valve and the throttle body. Clean air filter and fresh petrol and new plug. Have checked the valve clearances which are fine. Engine check light not on either... What next?
2010 Honda TRX420 FM
- Thread starter agrimax
- Start date
The EFI will have a temperature sensor in the engine thats either gone 'up the fritz' or has a bad connection.
If you have a multimeter and can find the sensor then try a bit of home diagnostics and measure the resistance against whatever values you can find on 'tinternet, or its dealer time.
[Currently troubleshooting a faulty MAP sensor on a non ag Honda thats reading -29.9psi, PITA]
If you have a multimeter and can find the sensor then try a bit of home diagnostics and measure the resistance against whatever values you can find on 'tinternet, or its dealer time.
[Currently troubleshooting a faulty MAP sensor on a non ag Honda thats reading -29.9psi, PITA]
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