Gen 3 OEM Swingarm Spacers and Washers

[CR500R7]

Thank you your info worked for me on my gen 4 250 crf

cool thread, just ordered my spacers.. thanks

99% of the Thanks should go to AlisoBob, he found / worked out all this information and was the one who started this thread to help all of us.
0.9% of the Thanks should go to everyone else before me.
0.1% of the Thanks goes to me for just updating the list of bikes which the Info applies to. ( thats all folks )
Credit where credit is due Thanks Bob.

Have a great day Hoons.

[dubious01]

OK this might save some confusion when stuffing a CR500 into these frames.

The Std CRF250 04-09 uses a 49mm on the left and a 59mm on the right, with the CR500 engine get a 54mm for the left side and you are done.

The Std CRF450 02-04 uses a 49mm on the left and a 54mm on the right, with the CR500 engine swap right to left and get a 59mm for the right side and you are done.

The Std CRF450 05-09 uses a 46mm on the left and a 54mm on the right, with the CR500 engine swap right to left and get a 59mm for the right side and you are done.

The Std CR125 02-07 uses a 54mm on the left and a 59mm on the right, with the CR500 engine you are good to go as is.

The Std CR250 02-07 uses a 49mm on the left and a 54mm on the right, with the CR500 engine swap right to left and get a 59mm for the right side and you are done.

Part# for the 54mm bush is 52142-KZ4-J40, left side of swingarm.

Part# for the 59mm bush is 52141-KZ4-J40, right side of swingarm.

If any of this is incorrect, please let me know so I can change it before any mistakes are made.

Thank you your info worked for me on my gen 4 250crf

awesome info! thanks, will see how my 2 projects go together next week.

[Jeff4510]

I am at this stage now and cannot find a pic of this. So on the Countersporcket the side with the lip faces in or out?? makes a huge difference on alignment

thanks

I'm checking into a solution for the Gen 3 misalignment.

The friggin soultion was to turn the countrshaft sprocket the right direction facing out ( Thanks Brit..... ) and put the short (54mm) Gen 3 250 bushing on the left, and the long one (59mm) on the right...


Puuurrrrfect!

[dannygraves]

lip out.

[Jeff4510]

lip out.

so you want the sprocket/chain as close to the case as possible, correct?

[Kuma]

Sorry to change the subject but...
'01 is a gen 2 correct?
I have a service Honda AF, '01 they used aluminum spacers between the motor and swinger, it's a bit of a pain to deal with, could I benifit by getting rid of the spacers and pick up the 125 collars? Would I use the '01 collars which are the same left and right or the gen 3 collars?

[gregrobo]

machine the spacers so they go between the engine collar and the case fixed never have to deal with them again

[Kuma]

Just thinking if I could go with the longer collars I would not have to have any spacers?
"machine the spacers so they go between the engine collar and the case fixed never have to deal with them again"
I'm not sure I understand what you mean? do you epoxy the spacers to the case so you don't have to deal with them?

[AlisoBob]

The collars are $9 bucks....

Get new ones. and be done with it...

Measure the old ones + the spacer, and get the oem ones of the same length.

[1550]

i do some measurements from mine crf450 -07 frame and it seems the measurements are 4mm off when using 54 and 59 mm bushings. There is 4mm gap between the motor and swingarm bushings.

I measure that mine engine rear mount is 73mm long. case spacers doesnt look to be very bad shape.

[dubious01]

for the CRF250, and CR250 chasis, just buy CR125 swingarm rebuild kit, and you will have the right bushings in it!

[davidonmars]

will these work on gen1's