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Old 01-12-2018, 08:44 AM   #9
Tassie f100
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Join Date: Jul 2012
Posts: 3,850
Default Re: 250 crossflow flat spot

Quote:
Originally Posted by Topsy11 View Post
My timing I got number 1 cylinder at tdc. Compression stroke. Marked the dizzy on the side. Rotor obviously points at number 1. Put the cap on and start number lead in order. Then when started advance the timing to 4degress btdc as written. Even if I move the timing up and down it still runs the same. Ickes well. Holds high revs well. Not backfiring as much if I punch it when the revs are up. As the timing advances at higher rpm so should I advance the timing more. Was at 14 btdc when I got it.
I dont understand what out of phase cap means. Does it mean they are not lined up to where the button should be when firing?
If the engine is running properly and doesn,t backfire under normal,accelleration I would discount a timing issue. You have either an ignition supply problem in either coil or leads or spark plugs. You say the carb is a reco,but is the accelerater pump giving a good squirt of fuel when you open the throttle. Easy to check,just look down the carb while you operate throttle manually without engine running.
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