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Post by captincvmn on Jun 25, 2021 17:51:13 GMT -5
  Two more puzzle pieces have arrived. A 12x16x14.8 bearing fits a KX65 Kawasaki among other 65cc bikes. I need to enlarge the area for the bearing by about .5mm to make it fit. Otherwise there is not a lot of choices for 12x16 bearings. ScooterTuning when asked about the 12x16x14 bearing said no such animal. |
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Post by captincvmn on Jun 25, 2021 17:59:32 GMT -5
From Scooter Tuning:
Hello!
I am very sorry for the late reply,
I tried to find a 12x16x14mm bearing (14mm wide) for the CPI engine, but couldn't get anything from stage6,
I think the product description is about the other models of bearings they are manufacturing, for the RT95 cylinder or any other high end kits,
The only size we can get at the moment would be 12x16x13 for the CPI engine,
Cheers
Eric
Customer Service
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Post by aeroxbud on Jun 25, 2021 18:36:24 GMT -5
That sucks. I found this www.motor-x.com it won't let me link it. Search SKU: LOI261-MX on the website. it lists all the models it fits. Perhaps searching one of those might help you. |
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Post by captincvmn on Jun 25, 2021 18:42:46 GMT -5
I just received the 12x16x14.8 bearing. The piston measures 14.6 so I only have to trim a tiny bit |
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Post by captincvmn on Jun 25, 2021 18:52:03 GMT -5
Wiseco and Namura both make a 12x16x14.8 bearing
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Post by geoffh on Jun 26, 2021 7:43:42 GMT -5
Just for discussion,I have fitted three or four piston bearings without much thought just popped them in the con rod and moved on no problems to date,I have a naraku piston,pin and bearing on my desk 10mm,the bearing is 12.5mm wide and the con rod is 12mm wide,loosely fitted on the desk the bearing is slack and will move freely side to side when fitted to the con rod it,s loose,when I fit the piston pin every thing tightens up and it feels solid so would only move side to side with wear and tear,I think I answered my own question? or did i  Geoff |
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Post by captincvmn on Jun 26, 2021 9:02:48 GMT -5
My stock bearing measures 13, piston bearing gap is 14.6. I’m hoping very much that eliminating the possibility of movement will help with longevity. A wider rod would be preferable but that won’t happen until I roach the crank. Then I’ll move up to a HPC full circle crank.
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Post by captincvmn on Jun 26, 2021 11:40:24 GMT -5
 New bearing actual width is 14.6mm End of rod is 12.3mm Looks like this installed: |
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Post by geoffh on Jun 26, 2021 15:44:23 GMT -5
Rob,do you get that "fitted" feeling when it is put together,I think the gap or play allows for oil to get in there.
Geoff
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Post by captincvmn on Jun 26, 2021 17:59:00 GMT -5
Yes it gets tight/snug when the pin and bearing and piston are in a set. Understandable about the oil penetration
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Post by captincvmn on Jun 27, 2021 10:21:36 GMT -5
 fittment issues. Nothing a sharp drill bit can’t fix. |
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Post by captincvmn on Jun 27, 2021 12:42:58 GMT -5
 shes a little higher than before. Corsa vs Streetrace exhaust angle?  Melting into perfect alignment |
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Post by 190mech on Jun 27, 2021 15:16:51 GMT -5
Welcome to the melted fan shroud club!!!  |
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Post by aeroxbud on Jun 27, 2021 15:28:48 GMT -5
Welcome to the melted fan shroud club!!! Where real speed is found. 👍 |
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Post by geoffh on Jun 27, 2021 15:34:05 GMT -5
Never seen it but never ever talk about the **** Geoff  |
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