white crust on flywheel?

[b4himdude]

heres a new one to me. recently i took off my flywheel cover just because periodically i want to look and see how thing are doing in my bike so i can be on top of a mechanical issue before its on top of me. plus i wanted to retard the ignition to see if it affected performance at all. well before i got to the stator i noticed the flywheel was getting a white crusty buildup of what looked to be some sort of pasty substance. so i removed the flywheel and did what i wanted to do with the ignition timing.but rather than just clean the flywheel i put on another clean ready to go flywheel. took a couple rides and removed the cover again to see the crap was starting to build up on the flywheel again. now i have a good gasket in place as well ive tightened the cover bolts to specs so im pretty certain its not dust. possibly moisture from washing the bike pretty frequently and the heat might be causing the leftover moisture from that to steam off and stick to the flywheel .but like i said the gasket is in good shape the cover is crack free and the fasteners holding the cover on are all tight. so would a seal beginning to wear out or not installed correctly be the culprit? possibly allowing a minute amount of gas that isnt fully  exhausted during combustion to get pushed  through and doing that?  any ideas?

[sandblaster]

Got any pics?

[b4himdude]

ill get ya some this evening after work

[alward25]

surface corrosion from the zinc oxide deteriorating they treat the flywheels with,  They all look like that from what I have seen.  I would clean it up and give it the Krylon touch, or Rustoleum, depending on what your are in to.

[sandblaster]

surface corrosion from the zinc oxide deteriorating they treat the flywheels with,  They all look like that from what I have seen.  I would clean it up and give it the Krylon touch, or Rustoleum, depending on what your are in to.

That was my first thought until I read more of his question and it sound's like it's happening very quickly as if there is a leak. That's why I wanted the pics.
I like to clear coat my flywheels and bake them with clear caliper paint.

[alward25]

I also spray a good corrosion preventative lube in there because condensation can get in a fester, even with a good gasket.  I use Amsoil metal protector.  I would not use WD-40, but is better than nothing.  Why not WD-40?  As much of a miracle lube it is, it is fish oil based and I have seen corrosion start underneath a film of it.

[sandblaster]

I also spray a good corrosion preventative lube in there because condensation can get in a fester, even with a good gasket.  I use Amsoil metal protector.  I would not use WD-40, but is better than nothing.  Why not WD-40?  As much of a miracle lube it is, it is fish oil based and I have seen corrosion start underneath a film of it.

Foxx says that he heard WD-40 also has some abrasives in it for cleaning.

[kxpegger]

On most two strokes there is a small hole between the bottom case halves that allows the flywheel side to vent. Water gets into the flywheel area from the vent hole. I know Yamaha and Suzuki have these vent holes on their 250's. They are often mistaken for a casting defect but they are supposed to be there. Never noticed if my 500 has this design?

[b4himdude]

i got a couple pics and uploaded them to photobucket and now twice ive tried to put them both in the same reply and froze me up on the screen. so i might try laater. but when i had her open i popped the flywheel off and the stator and low and behold down in the very bottom of the cases cavity for the flywheel there was just a little bit of water., im going to have to  investigate where its coming from. corrosion isnt good on any parts as far as see it., although i did wd-40 (actually used pb boltbreaker) because the can was closer and polished it up right nice . wiped what little water that was in there out. and used the permatex clear silicone around the top of where the rubber grommet shields the wiring from the cover as it comes through the flywheel cover. thought maybe the water may be getting in through there. ill find out. doesnt affect the performance any. it would after time and neglecting it . but thats not going to happen. also dont real;ly have anything to do with this but every time i log in here i have to refresh the tab and a resend  or cancel button come on the screen. i hit resend and it opens right up. probably to mush clutter in my pc and need to dousche it with some overpriced service. just wondering if thats only me running into that upon log in here.