need help just purchased an 02 blaster last night, doesnt seem to rev up properly and smokes harddd drained the gas tank and refilled to make sure there was not premix, if i have it in neutral and hold it to the bar it verrry slowly revs up to full throttle, the motor was supposedly just had a top end put in it and "smokes cause the rings arnt seated" help me what do i do to fix this smokes alot, and no power like just wont rev up worth a sh*t.
new to the blaster world, help!
- Thread starter mottomotorsport
- Start date
is it a lot of white smoke? sounds like maybe you right side crank seal is bad...what does the smoke smell like....
yes it is, like a decent amount help i was thinking maybe delte the oil injector and premix but i wanna know if thats what the problem is
Great idea!! This happened to me on the very first Blaster I owned, now that you mention it. The RH main (PTO side, as we lawnmower guys call it) seal was destroyed.
What's happening is that the engine still starts and runs on just the fuel from the tank, but due to the bad crank seal, it also sucks the lubricating oil out of the gearbox. This oil is burned, along with the properly-metered fuel/oil/air mixture coming from the carburetor.
The engine will start right up, but it will run sluggishly and start to smoke almost as soon as it fires. And I don't mean the 'worn-out-piston-rings-in-a-four-stroke' kind of smoke. I'm talking a cloud big enough to eradicate every mosquito in a square mile of your house. B)
Yeah. You'll need to drain the oil out of the gearbox, remove the crankcase cover, and take a good look at the crankshaft seal inside. I'll bet a dozen donuts that the seal is damaged, destroyed, or out-of-place. This is an easy fix if you've done this type of repair before. If not, just get ahold of a Clymer or Hanes manual for the Blaster, get familiar with your quad, and take the afternoon off. The job won't take more than 2 hours, even for a first-timer.
Just a note: Your FMF chimney is probably NOT the result of a fault in the oil injection system. The oil pump puts out only enough oil to maintain a 20:1 mix ratio at all engine speeds. Even if you put 10:1 pre-mix (about as rich as you can go and not clog a jet) in the tank AND ran the quad with oil injection, you still would not get this choking cloud
of hydrocarbons.
well for one if the smoke was caused by the oil injection and mixed gas at the same time the smoke would be blue..
a bad crank seal turns your smoke white (like a car with a blown head gasket)
take a pic of the smoke and we could tell you for sure if it is a bad seal...
or if your confident that it is a bad seal then tear into it and change it, its an easy job it just takes some time..
a bad crank seal turns your smoke white (like a car with a blown head gasket)
take a pic of the smoke and we could tell you for sure if it is a bad seal...
or if your confident that it is a bad seal then tear into it and change it, its an easy job it just takes some time..
well from what itsounds im going to be removing and changing that crank seal, its white smoke and wheni put my hand by the tail pipe i get black oil spots on my hand, so its deffentily oil. also i was reading and in the morning i went and played with the air screw on the carb the thing was all the way in so i adjusted that and it idles and revs up a little but still not full throttle and deff not as snappy as i would expect it to be, thing smells horrid like oil so yeah ill be taking that cover off. im a full time mechanic for a living but never messed around with two strokes so taking off this cover and changing that seal should be self explantiory correct? like no specail tools or tricks? haha
Yeah, it's pretty self-explanatory once you get the cover off. You will need a new gasket for the clutch cover, but other than that... just the basic hand tools that I'm sure you've got laying around. You may have to remove the entire clutch to get the drive gear off the crankshaft, but this isn't too hard. It helps to have a Blaster service manual, only because the clutch plates go back together in a certain sequence, and they're easily mixed-up. You won't need any special tools except for a seal driver. An appropriately sized piece of PVC pipe works great.
Once you get the seal replaced, I'd re-pack your silencer (muffler). Chances are that it is SO oil-soaked that the engine will continue to smoke for some time, even after the actual problem has been fixed. Fresh packing will also help to quiet the exhaust down again.
Great idea!! This happened to me on the very first Blaster I owned, now that you mention it. The RH main (PTO side, as we lawnmower guys call it) seal was destroyed.
What's happening is that the engine still starts and runs on just the fuel from the tank, but due to the bad crank seal, it also sucks the lubricating oil out of the gearbox. This oil is burned, along with the properly-metered fuel/oil/air mixture coming from the carburetor.
The engine will start right up, but it will run sluggishly and start to smoke almost as soon as it fires. And I don't mean the 'worn-out-piston-rings-in-a-four-stroke' kind of smoke. I'm talking a cloud big enough to eradicate every mosquito in a square mile of your house. B)
Yeah. You'll need to drain the oil out of the gearbox, remove the crankcase cover, and take a good look at the crankshaft seal inside. I'll bet a dozen donuts that the seal is damaged, destroyed, or out-of-place. This is an easy fix if you've done this type of repair before. If not, just get ahold of a Clymer or Hanes manual for the Blaster, get familiar with your quad, and take the afternoon off. The job won't take more than 2 hours, even for a first-timer.
Just a note: Your FMF chimney is probably NOT the result of a fault in the oil injection system. The oil pump puts out only enough oil to maintain a 20:1 mix ratio at all engine speeds. Even if you put 10:1 pre-mix (about as rich as you can go and not clog a jet) in the tank AND ran the quad with oil injection, you still would not get this choking cloud
Wow dude real great INFO!!
It sounds like your carb i would tear it apart and make sure there is no dirt or somrthing ealse in there
