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Post by philmill on Aug 2, 2018 14:09:47 GMT 1
Hi, can anybody tell me the O/D of the bearing that goes in the top case for the clutch arm? I bought one of the upgraded ones and even after freezing it there is no way its going in! I don't want to damage it. It measures 21.40mm on my vernier, seems a strange size and I wonder if its wrong.
Thanks.
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Post by philmill on Aug 2, 2018 14:25:42 GMT 1
So to answer partly my own question, I just found out my new one isn't round... 21.4 and 21.8! defiantly scrap.
Phil
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Post by 4l04ever on Aug 2, 2018 14:49:49 GMT 1
Are you using an OEM Yamaha bearing or an aftermarket part?
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Post by midlifecrisisrd on Aug 2, 2018 15:34:45 GMT 1
I'm now very wary of the "upgraded" bearings
I bought a full set from tss years ago for my 385
I never got the clutch arm one but the selector drum bearing didn't fit
Also the bearing behind the clutch has a little too much end float for my liking
Steve
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Post by headcoats on Aug 2, 2018 16:04:19 GMT 1
I had one of those TSS clutch basket bearings , it was SKF but looked like he had machined the groove on the outer bearing shell !
When I tightened the cases up, it developed a tight spot
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Post by philmill on Aug 2, 2018 16:07:41 GMT 1
All the crank and gearbox bearings and seals are OEM, the clutch arm on was one of those "upgraded" ones but I'm going to get get a genuine Yam part now! garbage.....
Phil
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Post by jon on Aug 2, 2018 17:37:17 GMT 1
Legend motorcycles by chance?
As Steve says, the selector drum one is the same.
A complete waste of money. I’m surprised they haven’t got bad press on this before, like they did with their kickstarts.
Jon
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Post by JonW on Aug 3, 2018 0:06:37 GMT 1
Ive fitted a bunch of upgraded bearings to my engines (all from TSS) and had no issues with any of mine. I do know there were issues with the plain bearings used on the clutch basket but I havent used one of those. All the other bearings, including the clutch arm were fine for me. Maybe I was just lucky?
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Post by rd350rob on Aug 3, 2018 7:59:16 GMT 1
Legend motorcycles by chance? As Steve says, the selector drum one is the same. A complete waste of money. I’m surprised they haven’t got bad press on this before, like they did with their kickstarts. Jon Yeah, I fell for the legend one as well. O/D was 21.7mm, so it wasn't going to go in the 21mm hole.......he said they'd sold "hundreds" with no issue and refunded me straight away- didn't want the item for inspection etc. which kind of suggests this happens a lot. Bought an OE one; went straight in.
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Post by philmill on Aug 3, 2018 13:51:56 GMT 1
Yep, Legend it was! lesson learnt there.
Phil
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