I have an engine I got used, and the id sticker and metal plate with engine specs and clutch arm are gone. Is there any way I can identify it? Are there any external or internal marks distinguishing a GT5, GT5A, or GT2? The engine is not very old, but eventually I will want to replace piston and or rings modify the engine.
engine I.d.
- Thread starter hcrft
- Start date
Post a pic.
There are only 2 kinds of 47 mm pistons but the rings are the same for both.
GT 2 is 48cc GT 5 are 66 cc
Awsome responce. Well now I know its a 66cc. Should I remove the piston and post a pic? I know that you can also measure the piston to find out specifically what piston you need. I just don't know where to measure. I know the pistons has different parts like escort and 4. But I don't know the anatomy of a piston where to measure. I'm glad you gave that advice because I also have a nother barb working little engine I picked up on a used bike that can probably use new rains. Kinda reminds me of a PK80 but I'm not sure. Being able to measure the piston would allow me to find a replacement also. Thanks again for your advice. I will wait for your reply before I the engine apart.
No need to pull the motor apart.
Just make sure you get a GT 5 piston which has the high wrist pin location.
PK 80 style pistons have the lower wrist pin hole.
Just make sure you get a GT 5 piston which has the high wrist pin location.
PK 80 style pistons have the lower wrist pin hole.
So both GT5's have the same piston? Good info. What about my other unknown engine. I dont know the anatomy of a piston. What on the piston would I measure to find a match?
Just make sure you get a GT 5 piston which has the high wrist pin location.
PK 80 style pistons have the lower wrist pin hole.
