piston

I am looking for help finding/acquiring piston rings (.25) for Honda XL70 after the rings in my motor seized and got stuck. There are options on eBay but options seem to be mostly out of the country and untimely. Parts No. is 13020-087-023 eBay Link with more info...

Hey guys, I hope all of you had happy holidays! I am oversizing the cylinder on a 72 ct70k1 and I ordered an oversized piston from dratv. I have a couple of concerns though that I would like to clarify before I have the cylinder oversized. The compression height of the new piston is .5mm bigger...

Hello! I bought a CT90 this year and overhauled it. Recently, I refreshed the top end (bored, new pistons, new valves, etc). I had the cylinder bored and the valves seated by a reputable shop, and they had the piston, so I'm assuming that they did it correctly. I took it out last weekend on a...

This is a follow up to my last two posts regarding carburetor issues and ignition timing. Now I'm moving on to possible valve/compression issues. After troubleshooting the carburetor and ignition timing without any luck (bike wont start no matter what). I did a simple compression check by...

Hey everyone, Really glad the malware warning is finally gone. Now I can post. I put in a TB 88cc piston and cylinder on during the winter, with a Z50 head. I've been running it for a while, but I thought I'd give my 70 head a try, so I switched heads yesterday morning. How does the piston...

Hi I am working on a '69 CT90. Looks like it's been redone before: it has a 0.50mm over piston. I measured the bore and piston and have a question. The 50.50mm piston measures 50.00mm by the compression ring. It measures 50.46mm at the pin and near the bottom of the skirt. The cylinder...

how do i install 1982 piston rings properly?