1977 DT100 Cylinder Marking

1 reply to this topic
  • LongW8

Posted March 10, 2013 - 03:53 PM


I'm trying to get a 77 DT100 running for my sons friend...

I pulled the cylinder because it didnt seem like it had much compression. Piston rings are stuck and the sides are really brown/black.

Going to get a new piston and rings.

The bottom of the cylinder has an ink like stamp that says ".013".

Oversized/bored once before? I havent measured it yet. Wondering what the mark is however.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • scalejockey

Posted March 24, 2013 - 07:45 PM


The top of the piston will have the oversized stamp..0.25,0.50,or 0.75

Related Content


Ducati 888 SPO 1991 by jakepeewee

Ducati 888 SPO 1991
  • 0 reviews

Kawasaki EX300 NINJA 300 ABS 2014 by Chris.GVS

Kawasaki EX300 NINJA 300 ABS 2014
  • 0 reviews

1981 Honda CB400t Hawk Idling problem by Surf_and_steel

Street   Performance, Tuning and Customization
  • 1 reply

Honda RVF400 NC35 1996 by Chris.GVS

Honda RVF400 NC35 1996
  • 0 reviews

Suzuki RG 250 1988 by Chris.GVS

Suzuki RG 250 1988
  • 1 review
  • Last review by Sharft 6
  • On May 15, 2015

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.