motor stays running

[akinmond]

i was riding for about 5 min when all of a sudden the motor reved up and stayed running, i hit the kill switch, nothing happened, so i pulled off the plug wire and it stayed running. finally i pulled the choke and it finally died. it was running with the kill switch in the off position for 30 seconds. i have no idea what it could be?? i have a fmf fatty pipe, dg silencer, boysen reeds, cylinder ported, 290 main jet, needle in the 3rd position. the tors is disconnected. i am stumped here. hope someone can help!

 

[89custom]

haha thats funny sh*t. it must have got to a point where it was running off compression. no idea what it could be, but does it run now?

 

[quam]

that is pretty curious. what octane gas were you running? if it was 87, it could be that the porting increased compression and the lower octane gas was detonating......

 

[akinmond]

when i finally got it shut off, i let it cool down for 10 min.
and it starts fine. i would like to change something as i dont want this happening again. i think the main jet might be too small causing the motor to run lean. its is a 290 main jet.

 

[dirtyblaster]

check for a air leak somewhere

 

[Paulie B]

check for a air leak somewhere

+1 for that.
Could be massive over-heating too.

I blew a crank seal on the flywheel side and my motor reved to the moon. Nothing helped- kill switch, even puttin on the choke didn't. Pretty scary
I finally pulled the fuel line in a pinch and she eventually died.

 

[ironicneon]

mine did the SAMEEE thing it was revving franticly like ALL out for like 30 secs then died it scared the Shyz outta me someone said its my TORS

 

[akinmond]

i took a look at the crank seal and there was gas on the seal. i am thinking it should be completly dry??? the seal is brand new. it was a Winderosa seal, has anybody had bad luck with these? there is a grouve where the seal rides on the crank, next seal i am not going to push it all the way in so it rides on non-grooved part of the crank.

 

[coreyownz]

mine did that and i had a 3in screw between the carb and reeds..

 

[Paulie B]

mine did that and i had a 3in screw between the carb and reeds..

Good gawd man how did that happen!

 

[89custom]

yo sh*t i didnt realize how many people this happened too. i try to stall the f*cker out. put it up a bunch of gears then slam the breaks. would that even work?

 

[blasterboy91]

Good gawd man how did that happen!

idk but thats hella funny!!!! hahaha