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mike m
03-26-2011, 07:27 AM
ok heres the deal maybe somebody can help me before i drag this in my back yard and light it on fire.i bought a 86 250sx about a month ago for a project.it ran and drove.sat for about a couple of weeks then it wouldnt start.it had the wrong carb on it from a 350x so i bought 1 off of here and in the mean time it also lost spark.i used a cdi from a 250x 4 wheeler.so heres my question even thou i have good spark would the wrong cdi make it not run.i useally have great luck with anything 85-86 atcs but this 1 hates me.i have 130ps of compression wants to start just doesnt catch.and i dont beleave its the carb as i am getting fuel.any advise would be helpfull.thanks ohh yah i also have a spare motor installed that 1 still same thing wont run.

Thorpe
03-26-2011, 11:07 AM
Stick a new plug in it... My BR (same motor) absolutely hates a mildly fouled plug...

tri again
03-26-2011, 02:03 PM
Good spark you say?

Will it run for a few seconds with a short spritz of starting fluid?