Hinson basket affects crank gear??

[atvmxr]

I am purchasing a Hinson basket for my 86R and James Lucky had a blip that for 86-87 applications the crank gear had to be modified or use an 88-89 gear. Anyone know why??

[D Bergstrom]

I put a Hinson basket on my 86. I just had to slightly grind the corner edge on one side of the entire gear to clear the basket. (Kind of like "rounding the edge off". I do not know if I am explaining it well.) It is mentioned with the instructions you get with the basket. It was not hard to do, but I also had a air grinder. I would assume the 88-89 gear maybe already has a bevel on it to clear the basket?

Doug

[250r4life]

i thought it said to do it on the 89 as well, but mine didnt have a problem... its been in a year of hard riding and its all good...

[jon370r]

The splined area on the crank is a little longer and the output gear is wider to match that. I don't remembe exactly but I think it was like .070. Just enough to hit the back corner of the Hinson basket. I've seen it a couple of times on engines I've worked on where its chewed that corner off the basket.

[300exQuadracer]

Originally posted by jon370r
Just enough to hit the back corner of the Hinson basket. I've seen it a couple of times on engines I've worked on where its chewed that corner off the basket.

then the pieces of aluminum float around in the engine until race day and causes a dnf because a small piece gets stuck to your rings and you loose all compression;) musta hapened to someone once :rolleyes:

make shure you grind the gear put it together and check, i thought i had it ground enough and found out the hard way i needed to take off a little more

[jon370r]

There is no way aluminum from your clutch basket could make it to your rings. If it did you have much bigger problem than a little gear rubbing. The cylinder and crank are sealed off from the transmission.

[250r4life]

Originally posted by jon370r
There is no way aluminum from your clutch basket could make it to your rings. If it did you have much bigger problem than a little gear rubbing. The cylinder and crank are sealed off from the transmission.

lol:D

[hang1p]

jon thats why your 350 is not running right the oil from your tranny is not getting to you crank and rod :blah::rolleyes: you big gooba

[300exQuadracer]

Originally posted by jon370r
There is no way aluminum from your clutch basket could make it to your rings. If it did you have much bigger problem than a little gear rubbing. The cylinder and crank are sealed off from the transmission.


hope your not serious:eek2: , because all the oil in the tranny also lubes your crank/ bottom side of the piston

[D Bergstrom]

Originally posted by 300exQuadracer
hope your not serious:eek2: , because all the oil in the tranny also lubes your crank/ bottom side of the piston

Jon370R is correct. Your crank is lubed by the premix mixed with your gasoline. Tranny oil is not in the crank/cylinder area.

Doug

[Rich250RRacer]

Originally posted by 300exQuadracer
hope your not serious:eek2: , because all the oil in the tranny also lubes your crank/ bottom side of the piston

:huh :huh :huh :rolleyes: I would really like to set him straight .... but I just don't have the time, it could take awhile.:D

[300exQuadracer]

huh, guess i never knew that, i allways figured it did, maybe i do have big problems, but it seemed like every time i had my bike tore down there was allways oil on the crank??

[hang1p]

that would be residue from your premix

[wilkin250r]

Originally posted by 300exQuadracer
hope your not serious:eek2: , because all the oil in the tranny also lubes your crank/ bottom side of the piston

This would be correct for most 4-strokes...