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4 Stroke Bicycle Engines & Kits 4 stroke motorized bicycle engine kits are great if you want reliability or do not want to mix your oil and gas. Learn from each other how to get the most out of your 4 stroke bicycle engine


4g belt drive transmission bushing

4 stroke motorized bicycle engine kits are great if you want reliability or do not want to mix your oil and gas. Learn from each other how to get the most out of your 4 stroke bicycle engine


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  #1  
Old 03-13-2013, 03:42 PM
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Default 4g belt drive transmission bushing

What size is the bushing from the 4 g belt drive transmission for a huasheng 4 stroke kit?
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Old 03-13-2013, 04:49 PM
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Default Re: 4g belt drive transmission bushing

Look at post #8: http://motorbicycling.com/showthread...ing#post440718

Might want to consider Cobrafreak's mod since Oilite bushing is always going to be questionable:
http://motorbicycling.com/showthread...4g+bearing+mod

Sometimes it helps to help yourself by doing a search of the forum before asking a specific question. No one is going to know an Oilite bushing number off hand or the dimensions. It took me less than a minute to find your information you were asking

Good Luck,

Chris
AKA: BigBlue
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Old 03-14-2013, 02:39 AM
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Default Re: 4g belt drive transmission bushing

McMaster-Carr Part# 6659K33 is what I used before I had the bearing mod done.
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Old 03-14-2013, 08:54 AM
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Default Re: 4g belt drive transmission bushing

US / McMaster Carr Stock/Chinese

OD 20+mm (.790 in.) 20-mm (.786 in.)

ID 16mm (.628 in.) 15.87mm (.625 in.)

Overall 20mm (.788 in.) 26.23mm (1.033 in.)
Length

Flange
to 18mm (.708 in.) 23.61mm (.929 in.)
End

Flange Dia. 24mm (.946 in.) 28.80mm (1.134 in.)
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Old 04-08-2013, 03:13 PM
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Default Re: 4g belt drive transmission bushing

Hello everyone, does anyone know of where else (online) you can buy the replacement bushing for the 4g transmission? as I live outside the US, and just placed an order through the direct webpage of mcmaster carr, they cancelled it, stating that export complexities from the US, even though the delivery address was in the US. Any help, and I have seen the bearing conversion and although interesting and I don't think I have the tools or expertise to sand or file down the engine drive shaft.

Thank you all for your time.
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Old 04-09-2013, 05:43 AM
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Default Re: 4g belt drive transmission bushing

Quote:
Originally Posted by astro83ve View Post
Hello everyone, does anyone know of where else (online) you can buy the replacement bushing for the 4g transmission? as I live outside the US, and just placed an order through the direct webpage of mcmaster carr, they cancelled it, stating that export complexities from the US, even though the delivery address was in the US. Any help, and I have seen the bearing conversion and although interesting and I don't think I have the tools or expertise to sand or file down the engine drive shaft.

Thank you all for your time.
PM me your address, I'll send you 2

I have a few left over from before cobrafreak did the bearing mod on my HS.
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Old 04-09-2013, 07:07 AM
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Default Re: 4g belt drive transmission bushing

Quote:
Originally Posted by The_Aleman View Post
PM me your address, I'll send you 2

I have a few left over from before cobrafreak did the bearing mod on my HS.
I thought you were giving those to me?
I still want that jack shaft too so please bring it to the race.
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Old 04-10-2013, 05:29 AM
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Default Re: 4g belt drive transmission bushing

Quote:
Originally Posted by MotorBicycleRacing View Post
I thought you were giving those to me?
I have 5 left, dude in Colombia needs 2 of them more than you do, guy.

Quote:
I still want that jack shaft too so please bring it to the race.
That thing went to jackshaft heaven. Maybe there it is not completely mangled with a 1/16" deep chain groove worn into it.

That thing's long gone and would have never been useful for anything after the hammering I gave it!
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Howto: 49cc GXH50/HS/Titan valve adjustment

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