siezed engine

[mwalsh]

my blaster siezedup so i had it bored out and anew piston was installed, i pluged the injector line and started premixing first time out my son said it stallde out on him so i tried to start it and it felt like it was partialey siezed but it did start and run like poop any ideas ?

 

[2smoker85]

first start out by looking at the plug,carb, could be the jetting, was it jetted when it was rebuilt? and get a compression test done and see how much psi u got. do the comp test first

 

[brandoz28]

check for air leaks, check the compression too

 

[liljatownboy]

crank bearings could be shot if the oil pump failure was the cause of the blown engine

 

[Whitty21]

did u properlly break in the new top end?

 

[acezeesawtooth]

^^^^ x2 also did you do a leakdown test after putting the new top end on?

 

[hudack]

^^^^x3 also did you make sure you pluged up the carb where the oil injection ran into