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Old 01-13-2011 | 09:33 AM
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1QwkSport2.5r's Avatar
1QwkSport2.5r
 
Joined: Oct 2006
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From: Cottage Grove, MN
Default RE: jato problem

ORIGINAL: ellis2.5

ive been trying to start my jato 2.5 for ages now with no luck. changed plug, cleaned carb and tank, reset tuning back to factory, done load of things with no success.
the fuel is very slow to flow up the line and once it gets to the carb it doesnt appear to go in. iv put fuel directly into the carb and it starts straight away and dies after a couple of seconds
anyone have any idea of what may be wrong, any help appreciated
I think you have a fuel restriction. If you put fuel down the carb and it starts, then dies its burning off the "priming fuel" and not pulling enough or any fuel to the carb. If you have a fuel filter, take it apart and clean it. I'd also suggest pulling the high speed needle assembly out of the carb body and verify that the holes in the needle assembly are clean. If you use fuel with castor oil in it and the model sat for some time I'd bet the castor congealed some and plugged a passage somewhere. I've had it happen.

Its very possible it may be clean and it just needs to be primed better. If the fuel flows slowly to the carb with exhaust plugged and turning the engine over there is a restriction. With a pullstart, there should be fuel to the carb within 1 or 2 pulls. With the EZ Start, it should only take a second for fuel to get to the carb. When I prime my engines, I turn the engine until fuel reaches the carb and turn it over 1 more pull or one more quick click of the electric starter. (I dont plug the exhaust, I blow through the pressure line to the tank)