We have had the engine overhauled, a new stator put in, nothing seems to fix this problem thats been
going on for 2 years with this thing. It's been to 3 different shops, and always comes back with the same problem. Help!

 

THis may be too simple to be true but try running it with the gas cap off or real loose.If this solves it check the vent line on the tank to be sure it is not pinched or melted.

 

i was kind of thinking it would be the fuel filter...


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1999 250 trail blazer
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k&n filter DG exhaust for now
just to make it a lil lounder
titan 489 xts on the back
maxxis razors on the front
full skid plate,bash gaurd
rebuilt trans,D.I.D chain
pro amor belt,scott grips
the newer model tie rod ends
12 t front 36 t back sprokets
neon shifter ****, pro burner lights
stronger back caliper holder i made at a friends shop
cut front fenders with the floor boards removed

 

When it dies...does it restart right away? Or does it need to sit for awhile? Does it restart easily?If it doesnt restart right away...do you have spark at that time?

 

If the vent tube for the fuel tank is stopped up the shut down time will vary with the amount of fuel to air ratio inside the tank (ie full tank = shorter time, less air volume, 1/2 full tank = longer time, more air volume).
A defective ignition coil will stop firing once it heats up, then after it cools down the windings inside will make contact again and allow the coil to fire once more.

 

YES!!! I remember it sitting for a few days, coming back, and it firing right up with the starter on the first crank. Then it would just go through the same ordeal. It still gets a spark, though not sure how strong,.

 

So it must sit overnight to re-start? Or will it re-start right away? After 5-10 minutes? over an hour? Does it vary from failure to failure? When it dies, does it give any warning or just die all at once?

There may be help on this forum for you, but we need more info!

 

Start & drive it around until it dies (stay close to home LOL). Now loosen the gas cap. Does air try to 'woosh' in (if you listen carefully you may hear it). If so, the vent is clogged. Usually, when this happens, after a while, it will start, when the vacuum in the gas tank gets equalized, but it has to crank a while, or, after loosening the gas cap, will start once the fuel pump gets re-primed.

It can also be the coil windings going bad. When they get hot, you lose spark. Usually, when this happens, it just won't start until it cools off. Once it is cooled down good, it starts like it always did.

My guess would be the coil. Usually, a plugged fuel vent shuts you down in 10 min or less, unless the fuel tank is low, giving you a big air pocket.

 

i had the same problem with my big bear. I think my dad said the needle was pluged or something. My quad would always stall after about a halhf an hour.

if that helps anything.