blaster running help

Ford4x4302

New Member
Oct 7, 2012
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i just rebuilt my 2000 blaster and took it easy for about a tank of gas to break it in and this week i went a starrted it and it ran perfect then shut it off and later that day started it again and it was fine then i took like a 20 min break and filed the tank with 89 mixed 32 to 1 and i have ben running it on 87 mixed at 32/1 it will not start now i checked the carb it was clean and i changed the plug and will still just spitter and sputer but will not start could it be because i put the 89 in it ?????????any other help would be great too thank you :-/
 
I would check for good spark. If that's good, check the reeds next. I would also do a compression and leak down test to see condition of motor.
 
Did you leak test the motor after rebuild?

Did you perform heat cycles and a retorque of head and jug bolts before you rode it.

What are your mods and jetting?
 
there are no mods and i did no leak test but it ran fine i rebuild it and rode it at least 4 hrs already and rean perfect
 
Take advice from a silly old fart and do a leak down test, you will not regret it.

Have you retensioned the head and jug, it is important to do this, it is too late now to heat cycle it.