blaster motor problem :(

tyty

New Member
Apr 27, 2010
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well i was riding my blaster full speed down a road for about 10 minutes and suddenly the motor made a weird noise and i pulled over and it died:o the piston is not seized but the motor has no compression so it wont start i need to get it fixed in a week but i dont know what might have happened please help me
 
i'm gonna guess..... burned a hole in the top of the piston, it is never good to run these little bikes wide open for that long, or this will happen every time
 
i'm gonna guess..... burned a hole in the top of the piston, it is never good to run these little bikes wide open for that long, or this will happen every time



probably, time to pull the top end apart and see how bad you hurt it! time for a bore/hone and new piston/rings
 
probably, time to pull the top end apart and see how bad you hurt it! time for a bore/hone and new piston/rings

agreed ^^^^^^^ yeah man if you want to run a 2stroke wide open for more than a few seconds you better be sure your jetting is dead on or POP no more engine X(
 
i pulled off the top end and the pison is melted basicaly and chiped around the edges i think i am going to bore it out or should i just buy a new top end ????????:-/
 
bore to the next size up and new piston and rings and you will be back in business, but do use a favor and look up how to jet your carb and how to do plug chops and get that bike jetted right before we see another "burned it up again" thread.
 
what size should i go and what piston do i get?? also can you leave me a link to a different looking hood
 
maybe this will help with explain

"how to do a plug chop"

1. Get new spark plug(s), but don't put them in yet.

2. Warm up motor to operating temp on old plugs.

3. Install new plugs.

4. Accellerate through all gears to top gear with throttle pinned.

5. When you hit the top of the top gear, hit the kill switch and
pull in the clutch.

6. Remove the spark plug(s) and ride home on the old plug(s).

7. Hold the new plug in a vise and use a hacksaw to cut the threads
away from the center electrode.

8. You should see a brown 2mm "smoke ring" at the base of the
white center electrode if the main jets are dialed in perfect.

9. if the smoke ring is darker than chocolate brown or taller
than 2mm, you're rich on the mains, but if it revs clean to full
throttle, you can leave it there and be on the rich side.

10. If the smoke ring is smaller than 2mm or lighter than chocolate
brown, you're lean on the mains, go up a size and try again.
 
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i have a problem i mix my oil and fuel myself and whenever i get on it hard it makes like a grinding noise i found out what tht is but whenever i shift into the high gears like 4th 5th it wants to bog down bad and not GOO could this be spark plug or what? HELPPPP!!