Air screws do they have to be the same ?
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MotoGP
Joined: Aug 2007
Posts: 5,942
From: Lake View Terrace, CA
Sounds like the rear pilot jet is clogged. The screws are normally a little different, with the rear being open maybe 1\8-1\4 of a turn more.
The fact that the rear is open so far ( around 3 turns out is as far as you should go before switching to a larger jet) and so different from the front points to a problem with the jet.
They can be cleaned but it is easier to spend the $5 and just get a new one.
Or replace them both while you are in there.
The fact that the rear is open so far ( around 3 turns out is as far as you should go before switching to a larger jet) and so different from the front points to a problem with the jet.
They can be cleaned but it is easier to spend the $5 and just get a new one.
Or replace them both while you are in there.
Last edited by 8541Hawk; May 20, 2010 at 02:06 PM.
Member
Squid
Joined: May 2010
Posts: 50
From: Chicagoland
On the race SV with flat slides i'm running slightly different main jets because the rear cylinder seams to get more hot than the front. This is a fine tuning thing though that can only be done on a dyno and closely monitoring cylinder head temp and exhaust header temp.
Slightly differnent pilot / air screw adjustments is normal. What you are describing is way out of wack.
Slightly differnent pilot / air screw adjustments is normal. What you are describing is way out of wack.
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