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-   -   Genuine Buddy 125 Final Drive Questions (http://www.advrider.com/forums/showthread.php?t=857184)

Jim Moore 01-21-2013 06:10 AM

Genuine Buddy 125 Final Drive Questions
 
HI folks,

I have an opportunity to buy a GB125 for cheap. It starts, but doesn't run. It also has a trashed final drive. "Trashed" as in grinding noises and metal in the FD oil. I've never dug into a scooter final drive before, but I've watched a few videos. I assume I will have to replace everything that turns or rotates in the final drive. I haven't had any luck finding an online fiche. Any idea how much $$ I'm looking at to replace all the bearings and gears? Any special tools required?

Thanks,

gogogordy 01-21-2013 06:13 AM

Quote:

Originally Posted by Jim Moore (Post 20539778)
HI folks,

I have an opportunity to buy a GB125 for cheap. It starts, but doesn't run. It also has a trashed final drive. "Trashed" as in grinding noises and metal in the FD oil. I've never dug into a scooter final drive before, but I've watched a few videos. I assume I will have to replace everything that turns or rotates in the final drive. I haven't had any luck finding an online fiche. Any idea how much $$ I'm looking at to replace all the bearings and gears? Any special tools required?

Thanks,

You might be better off sourcing an insurance totalled Buddy and just doing an engine/driveline transplant. They're out there!

Jim Moore 01-21-2013 06:36 AM

I thought about that. I saw one on eBay for $900. Thta's way too much for this project. I'm hoping to spend $100 or so on parts. I'm not interested if I can't do it for that.

gogogordy 01-21-2013 06:49 AM

Quote:

Originally Posted by Jim Moore (Post 20539889)
I thought about that. I saw one on eBay for $900. Thta's way too much for this project. I'm hoping to spend $100 or so on parts. I'm not interested if I can't do it for that.

Maybe call Genuine directly in Chicago....?

Jim Moore 01-21-2013 06:59 AM

OK, I found an online fiche. Looks like about $200 worth of parts. Interesting. Looks like I'll get to use my bearing puller. Anyone know if the gears need to be pressed?

brianwheelies 01-21-2013 09:26 AM

May want to try modernbuddy.com forums.

Also, the parts may be swappable with aftermarket GY6 bits which could save some money as well.

Jim Moore 01-21-2013 09:48 AM

Thanks. I see the term GY6 alot, mainly referring to engines. What is a GY6 exactly?

brianwheelies 01-21-2013 09:58 AM

The basic aircooled platform of scooter engine from 125cc to 150cc(Buddy 170cc is now even bigger). There are different versions of the GY6 so parts have to be confirmed before purchasing and swapping since there are several derivatives.

bbishoppcm 01-21-2013 05:52 PM

Be careful; on real Honda scooters, if the needle bearings are trashed, you need to replace half the engine case (the needle bearings are not replaceable). Call that a "worst-case" scenario!

Hittman 01-21-2013 07:49 PM

The gears do not need to be pressed in.

Jim Moore 01-22-2013 06:48 AM

Thanks for the info guys. I'll let you know what happens.

Dibber 01-30-2013 10:44 AM

Try www.scooterwest.com or www.scooterworks.com. Scooter Works is the same company that distributes the Buddy 125. These are the best locations I have found and use them on my Buddy 125. Interesting, never heard a drive train being toast. My has been a real work house for over 14,000 miles.

Jim Moore 01-30-2013 10:56 AM

Thanks again. I kinda got the it was run without rear drive oil, or it was never checked. The whole thing is fishy, but I can live with fishy for super-cheap.

Motovista 01-30-2013 12:59 PM

I've seen a few scooters with final drive failures. A lot of them had crappy bearings put in at the factory, and there are some that have obviously been under water at some point. One thing you want to make sure of before ordering parts is that when the rear end self distructed the bearings and gears didn't take chunks of engine case with them. That's expensive.
Also, sometimes people think the final drive is toast and when you open it up you find out that a clutch shoe broke or the variator froze on the crankshaft.

When you pull the bearings, note the sizes and try to replace them with German or Japanese bearings. We use a brand called Nachi and have had very good luck with them.

Freeze the bearings and they will slide right in where they should.

conchscooter 01-31-2013 07:09 PM

If the transmission ate the end of the crankshaft you may need a $900 transplant motor. Go for it and tell us the result!


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