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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	MY 50cc Oct 17^th, 2012 at 4:20pm Obviously my 50 CC tends to crap out at inopportune moments, usually during contests...while checking things over I found the bearing in the canister exhaust is plugged up and not running smooth any more - any ideas how i can fix this ??
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Yak Man Club Member Galactic Twinkie Jet Pilot Extraordinaire Offline Forum User LastOn: Yesterday Join: Mar 23^rd, 2010 Posts: 1,000 Reputation: 0 Gender: Zodiac sign: Awards: 5 Mood:	Re: MY 50cc Reply #1 - Oct 17^th, 2012 at 7:19pm Yep. It aint gonna be cheap!
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Fingers

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Re: MY 50cc
Reply #2 - Oct 17^th, 2012 at 7:47pm

Man I was kinda thinking the bearing was clogged up because I didn't use prop wash to clean and protect it. But I'm also wondering if it will help if this time I get a ceramic muffler bearing. Expensive I know, but i kinda want to stop this cutting out.
Another thread said I'd have trouble getting the old bearing out, but even more getting the new in.... don't want to be stuck with an upside down bearing Undecided

I guess you have to be pretty careful engaging the pittman return spring Huh

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Steve Mosher Club Member Offline LastOn: Apr 3^rd, 2024 Join: Mar 24^th, 2010 Posts: 461 Reputation: 0 Gender: Awards: 4	Re: MY 50cc Reply #3 - Oct 17^th, 2012 at 8:08pm I've learned the hard way to use a reverse induction capacitor tube when inserting the pitman return spring ... lost three canister bearings before I heard of this trick. As Al said, it wasn't cheap. Be sure to use a top quality lubricant. Either of the two below will work well.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #4 - Oct 17^th, 2012 at 8:20pm Thanks for the tip on the reverse induction capacitor tube Steve. I'd almost made a big mistake and used a Bi-Phedral Phase Shifter.... man that might have been nasty..the lube advise is super as well..
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Ramzz

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Re: MY 50cc
Reply #5 - Oct 17^th, 2012 at 9:10pm

Almost all of my muffler bearings have plugged up in the past. The trick is to mix sand and metal filings with the fuel...about 5% filings and 3% sand does the trick. With this mixture, oil is not needed. The filings will deposit a protective coating on the bearings' flux rectifiers and the sand will grand away any excess buildup from previously used, unnecessary 2 stroke oils. If this doesn't work, try mixing some nitroglycerin in with the fuel...but make sure you get the shock proof nitro glycerin.

As a last resort, you could try changing your ignition timing from 28 degrees before TDC to about 180 degrees before TDC. This will create a transverse pressure wave that will also help prevent muffler bearing seizures.

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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #6 - Oct 18^th, 2012 at 10:39am I'm glad you specified changing the timing as a last resort Marc....doing that AND using the nitro mix would be a bit extreme.... the other possibility is to get a bearing made from tachyon...should run pretty fast without crapping.
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Re: MY 50cc
Reply #7 - Oct 18^th, 2012 at 8:03pm

Fingers wrote on Oct 18^th, 2012 at 10:39am:

I'm glad you specified changing the timing as a last resort Marc....doing that AND using the nitro mix would be a bit extreme....

the other possibility is to get a bearing made from tachyon...should run pretty fast without crapping.

The best bearings are not creamic. The best bearings are made of unobtanium.

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Ben Lann Aerobatic Pilot Offline Forum User LastOn: Aug 11^th, 2023 Join: Aug 15^th, 2011 Posts: 275 Reputation: 1 New Glasgow, NS Gender: Zodiac sign: Mood:	Re: MY 50cc Reply #8 - Oct 18^th, 2012 at 9:56pm Is it just me or has someone be sniffing the hysol again?
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #9 - Oct 19^th, 2012 at 11:33am Ben Lann wrote on Oct 18^th, 2012 at 9:56pm: Is it just me or has someone be sniffing the hysol again? yes
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #10 - Oct 19^th, 2012 at 11:37am unobtanium is better than tachyon? I'd never have guessed that !!
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JackDD Club Member Offline Forum User LastOn: Yesterday Join: Apr 25^th, 2010 Posts: 541 Reputation: 0 Gender: Awards: 2 Mood:	Re: MY 50cc Reply #11 - Oct 20^th, 2012 at 2:06pm I bet you can get that in Hong Kong.... I'll search the Part # if you like...
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #12 - Oct 22^nd, 2012 at 10:01am please do that Jack. I know tachyon is available in Switzerland
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GreenDragon Club Member No One Beats Puff The GreenDragon Offline Forum User LastOn: Oct 4^th, 2023 Join: Nov 13^th, 2011 Posts: 30 Reputation: 0 Hatchet Lake Gender: Zodiac sign: Awards: 2 Mood:	Re: MY 50cc Reply #13 - Nov 1^st, 2012 at 8:32pm I prefer good 'ol KY.
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Glen Club Member Offline Forum User LastOn: Yesterday Join: Aug 5^th, 2011 Posts: 441 Reputation: 2 Sackville Gender: Zodiac sign: Awards: 2 Mood:	Re: MY 50cc Reply #14 - Nov 1^st, 2012 at 9:29pm Funny, you never mentioned that while we were in Margaree.
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,089 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: MY 50cc Reply #15 - Nov 2^nd, 2012 at 10:12am Glen wrote on Nov 1^st, 2012 at 9:29pm: Funny, you never mentioned that while we were in Margaree.
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