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View Full Version : What thickness should the spacer plate be??



stever250r
01-14-2007, 01:02 PM
If I use the 88 long rod crank, and a wiseco yz250 piston what should the thickness of the spacer plate be?

I think they are different depending on if you use a yz250 piston or an oversized 86 250r piston.

Does anyone know for sure?

honda380
01-14-2007, 01:40 PM
im pretty sure the yz plate is 2mm thick and the 86R is 5mm thick. Corey

matt250r21
01-14-2007, 04:14 PM
88 rod with the 83-87 YZ250 piston needs the 2 mm spacer plate. The 86 piston with 88 rod uses a 4 mm plate.

If you need a YZ piston for this set up I have a NEW Pro X kit for sale $75 + shipping. New Pro X kit 83-87 YZ250 68.25 bore

stever250r
01-14-2007, 05:12 PM
Thanks,

I would take it Matt but I need a 68.75mm