1990 xr4 low spark?

BASCSTR

Cadet
Joined
Apr 14, 2012
Messages
29
Hey yall, last summer had the motor running and on muffs.......tried to start it today and all it would do is turn over. New plugs were put in, ngk, and when i did a basic spark test against the block, it seemed vey small. Need this thing to run, upcoming tourny! Yalls help is greatly appreciated
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,938
Re: 1990 xr4 low spark?

Get ya a open air gap spark tester and it should jump a a 3/8 or better gap, if not go to CDI and download the trouble guide and test.
 
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