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1986 Honda TRX 250r
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2,614 Posts
Discussion Starter · #1 ·
when i put my crank in the cases with the main bearings installed in the cases. the crank will move side to side in the cases when i push on one side of the crank and then on the other. Any on else have this problem? Do i have the right bearings?
 

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1986 Honda TRX 250r
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2,614 Posts
Discussion Starter · #3 · (Edited)
well im thinking i might have the wrong mains in. because when i bought the bearings. they said for hotrods cranks only on the package.
 

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1986 Honda TRX 250r
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2,614 Posts
Discussion Starter · #9 ·
no i dont. i was thinking about going to bikebandit.com and buying some oem bearings and seeing if that would fix the problem. OR just getting the part numbers and getting some from napa.
 

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1,780 Posts
side to side play isnt bad as long as it isn't too much, vertical play is what you should be worried about, any vertical play at all and your screwed
 

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is the play that u are talking about at the main bearings and case?
 

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is the play that u are talking about at the main bearings and case?
I think he's talking about where the rod meets between the 2 sides of the crank, mine had some minor play in there when I re-assembled it, I didn't put it together the first time, but it runs great, and I've heard of this before, but someone correct me if I'm wrong.
 

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1986 Honda TRX 250r
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2,614 Posts
Discussion Starter · #17 ·
I think he's talking about where the rod meets between the 2 sides of the crank, mine had some minor play in there when I re-assembled it, I didn't put it together the first time, but it runs great, and I've heard of this before, but someone correct me if I'm wrong.
actually im talking about the crank between the cases.
 

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Old School but still Cool
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2,849 Posts
Yeah....their should be VERY little if any play there. Especially on a machine with a bell style flywheel. You can have lateral Rod play and that is normal, but the tolerance for crankshaft play is like only .004 of an inch on those.
 

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ill take a look at the crank tonight,it came with my 250r when i got it along with some other stuff,i never really looked at it close.i let you know what shape its in.
 
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