Boxerworks.com

Looking for the elusive R90/6 1974, 97mm spigot cylinder and piston, right side.
Any help appreciated!
Thanks,
KC

I have a R90/6 1974 with a totally shot cylinder and piston. I have bought 2 on EBAY, had to send back were the late 1975
cylinders, wouldn't fit. As its a early bike the spigot is 97MM.
Maybe someone out there in Boxer Word has one, I'm buying.
Happy New Year!
KC

R90/6, 1974, right side cylinder and piston are trash. Looks like finding a cylinder and piston for that year is going to be difficult. I bought a cylinder off ebay, sold as a R90/6 cylinder, it might be, but likely a late 1975 cylinder or off another model. It was suggested to me that I might look ...

I have a 73 R90. I bought the bike, I trusted what the seller told me, it was a mistake. Right side cylinder and piston are trash. Chances of finding a correct cylinder and piston are slim these days. I bought a real nice cylinder and piston on ebay. It doesn't fit. After doing some research, i coul...

Well that clears that up,
Thank You!
KC

This is the pushrod. Each end has a hole.

I had to open up the engine as the right cylinder was stuck. I had the cylinder soaking, laying on a tire, for 2 months. All the ATF/Acetone in the world made no difference. Heated the cylinder, wouldn't budge. I got it out. The piston was shot as was the cylinder. When we took off the head on the r...

I took a chance on a 74 R90\6. I pulled the head, jugs and pistons out. We think I might have a clogged pushrod. I haven't been able to find any way to clean these on line. maybe someone has a suggestion.