New top end now won’t idle
Jun 28, 2018 | 07:18 PM
#1
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Weekend Warrior
Joined: Jun 2018
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New top end now won’t idle
Just put a new top end in my 2002 polaris Scrambler 400 2-stroke. The water pump seal went bad and lost all my coolant and overheated the engine and melted a piston. Got it all back together and it started up and runs great but I can’t get it to idle at all! If I let go of the gas it just dies. If I give it any choke it dies. If I hold the throttle just a touch it will idle perfectly. I’ve messed with the carb idle screw but it isn’t effecting anything. Any help is appreciated!
Jun 29, 2018 | 09:06 AM
#2
Pro Rider
Joined: Oct 2015
Posts: 1,107
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How long was it sitting while doing the rebuild and did you drain your carb? I'd give it a good cleaning (specifically targeting the idle (pilot) jet that sits deep inside under the bowl) and see if that does the trick. Just be careful getting it out as they are known to strip if you don't use a very good fitting (and small) screwdriver...
My $0.02
My $0.02
Jun 29, 2018 | 04:20 PM
#3
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Weekend Warrior
Joined: Jun 2018
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How long was it sitting while doing the rebuild and did you drain your carb? I'd give it a good cleaning (specifically targeting the idle (pilot) jet that sits deep inside under the bowl) and see if that does the trick. Just be careful getting it out as they are known to strip if you don't use a very good fitting (and small) screwdriver...
My $0.02
My $0.02
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