Timing 90 sport jet

Joined
Jul 4, 2010
Messages
24
I would like to know how to time a sport jet 90 93 model cdi I have no cover on top I see the degree markings but cannot find indicator pointer or if someone has a pdf manuel I would greatly app it I have one ordered but it has not arrived.
 

kend301

Lieutenant Junior Grade
Joined
Jul 4, 2009
Messages
1,005
Re: Timing 90 sport jet

The timing pointer is located on the block , dead center of the carbs . It is just a piece of metal that comes to a point with a raised mark on it . Proper timing is 30 deg BTDC at Wide OPEN THROTTLE running . Set it at 32 deg BTDC if you are timing at cranking speed with the plugs out . The Idle timing then should read 6-10 deg BTDC . Idle timing is not that important , it is WOT that you want right .
 
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