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HPI Trophy 4.6 Won't Start With Air Filter On

HPI Trophy 4.6 Won't Start With Air Filter On

Old 12-04-2012, 06:49 PM
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Join Date: Nov 2012
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Default HPI Trophy 4.6 Won't Start With Air Filter On

I was having an issue starting my truggy for the first time for break in, so I did some troubleshooting and found out that with the air filter and housing completely removed, the engine starts in a few pulls. With the filter back on, it doesn't come close to firing.
Needles are all set to factory settings, and engine was pre-heated with a heat gun before each start attempt. Tried 2 different plugs, throttle is adjusted correctly, carb is open 1mm on idle but no luck with the filter box attached to the elbow.

Should I try leaning the high end some? I don't want to run the break in too lean, especially because it's getting cold. Plug not getting hot enough maybe for the rich setting?

Any help is much appreciated.

thedude2470 is offline  

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