Diagnoses pelase im sick!

[UniRacing]

Checked compression-140 psi
Checked reeds-Look great
Checked piston and skirt-Look great
Checked spark plug-Brand new
Checked carb-Clean and functioning great
Changed crank seals-Brand new

My symtoms are

wont stay running without giving it throttle
Then while holding the throttle at idle
it puffs and sputters then tries to die if i dont give it a little more gas.
when it puffs you can see a blank spot of smoke out the silencer
also when it puffs,smoke shoots out the head pipe,and dies.

VIDEO UPLOADING

 

[fioz600r]

Sound like a timing issue or the piston is in backwards.

 

[2kuik4muharemovic]

carb sounds out of tune

 

[UniRacing]

My piston is in correctly,i was thinkignt he timing also,but my flywheel seems in tact no sheared key.

I do however have ALOT of oil in my crank side of case,from when my crank seal wore out.and alot got sucked over there

maybie the oil in the bottom end is burning and puffing that smoke out.

i took the cylinder off and turned it upside down and alot of oil drained out the crank,i dried it as best as i could with rags,ill reassemble and runn it for a while to burn the rest of that oil down there,then update here

 

[4cfed]

yeah.. looks wayy smokey.. prob still got alot of oil in the crank area.. try running it to clear it out and keep changing plugs.

 

[4cfed]

actually after watching the rest of the vid........ my wifes old blaster did the same thing... i didnt do something right when i disconnected the tors and it did the same thing

 

[yb200]

,but my flywheel seems in tact no sheared key.

did you take the flywheel off and check....i bet the key sheared and jammed again and thats what you problem is

 

[ron89]

hmm it looks like there is alot of white smoke, if you replace the seals then maybe your still burning gear oil?. it could be leaking from the two case halfs. but what makes me think that its not that is when my boys blaster was leaking from the two case halfs, it would idle ok and would just rev uncontrollably and you would have to kill the motor. what oil are you running?. umm have you checked to see if your oil level has been getting low or lower?.

 

[kevz28carter]

which way is the piston facing with the ports to the front or towards the carb?

 

[UniRacing]

Yea fed i was going to try to run it for a little bit and see if it gets better,i did end up draining alot out of my crank,then put it back together and i think my plug is fouled now,not even trying to fire.

 

[lasxgames]

is that white smoke from exhuast? Does it smell funny? if so it's a leak and yea piston in backwards?

 

[UniRacing]

Yes its coming from the exhaust but i beleive from the crank side,my seal blew out and oil filled my crank completly,i replaced the seal and i drained the oil out of there but need to run it for a little bit to burn the rest out..but fouling plugs like crazy

 

[UniRacing]

got it fixed...thanks everyone

 

[4cfed]

just needed to be cleared out???

 

[UniRacing]

Yes got the oil poored out the crank side,then replaced the sparkplug,it fire right up and idled great for a bit,ill ride tommorrow..