cr 500 connecting rod

[kgbillybilly@gmail.com]

i have an 85 cr 500 the connecting rod broke. itook it to a shop he has installed a connecting rod.it is to long .he says 84 to 89 has the same stroke 79mm and 90 to 01 is also 79mm. i know 84 is a 480 85 is 500 and 86 is same .if any one has the stroke length of the connecting rods please help before i lose thanx kgbillybilly

[shartkart]

Your bike is a 489cc, 89mm bore and 79 mm stroke

An 86 also has 89mmx79mm, but an 86 is 491cc

You have the best CR500 motor there is!!!!!


1984 is also a 489cc with the same bore/stroke specs.

The connecting rod length however is different from 85/86 to 87. The cases changed in 87 as did the rod length, it moved to a longer rod. You have a later CR500 rod, you need the correct rod.

Somebody makes a connecting rod for that bike aftermarket, I forget who, its very hard to find. Maybe Vesrah?? I know hotrods, or wiseco neither of them make one. Only 87-01. But you can find one for the older 500s, but the rod is over $200 if my mind suits me correctly.

[FPMXer]

You will find your answer in one of these two sites. www.cr500riders.com or www.bannedcr500riders.com.