Maintenance & Technical > KX500 Original

plug fell out, precautions prior to installing?

(1/5) > >>

alexander-vmann:
took my bike to the track for the first time, was also the first time i've been riding on a track for a full year, i was going to take a last lap before heading home and at the start line it sounded like a airplane breaking down or a cartoon car, turned out to be the plug falling out of the top, so what should i do before i install it again to make sure it does not fall out again?

Foxx4Beaver:
before you attempt screwing in another plug, you better be very sure the threads aren't all chewed up...or you'll be letting pieces of your head/threads go right in on top of the piston...and a new plug will shoot out again.
If they look good, put a NEW plug back in...not your old one....since the old one's crush gasket/washer is now done.

alexander-vmann:

--- Quote from: Foxx4Beaver on August 08, 2015, 06:21:22 AM ---before you attempt screwing in another plug, you better be very sure the threads aren't all chewed up...or you'll be letting pieces of your head/threads go right in on top of the piston...and a new plug will shoot out again.
If they look good, put a NEW plug back in...not your old one....since the old one's crush gasket/washer is now done.

--- End quote ---
i was able to screw back in the old plug, so i could wash the bike, did not tigthen it up but the treads felt good, so i migth be lucky and avoid debrie on top of the piston  :| i think what happend is that i did not tightn the spark plug good enough the last time i took it out, and its been vibrating its way out of the cylinder, but i could very well be mistaken  :|

Foxx4Beaver:
I'd pull the tank off so you can get a GOOD look at the threads in the head....no sense rolling the dice when it only takes a couple minutes to do.
Chances are, it's ok...but it's better to be sure it's all set, than to have the plug shoot outa there when you're going wide open later on down the road.

alexander-vmann:

--- Quote from: Foxx4Beaver on August 08, 2015, 07:15:36 AM ---I'd pull the tank off so you can get a GOOD look at the threads in the head....no sense rolling the dice when it only takes a couple minutes to do.
Chances are, it's ok...but it's better to be sure it's all set, than to have the plug shoot outa there when you're going wide open later on down the road.

--- End quote ---

definatly agree with you there, gonna see if ''biltema'' has a new plug for me tomorrow and ofcourse take of the tank to inspect the threads

Navigation

[0] Message Index

[#] Next page