Looks to be a copy of a old OS VZB engine the head and carb are different but the rest is identical to the OS you got your self a legendary engine right there 👌💯%
Did you see Dialed-RC has all of the parts for that engine? Piston and sleeve $54.99. That is not bad. From what I paid for the piston and sleeve in my engine I believe it was 11 or 12 years ago.
@@Harvz78 I am not for sure. I just use it to lube the piston and sleeve as I am putting it back together and a little on the bearings. I have never really noticed a problem. I don't use it as after run.
I am not an expert, but I think the lower numbers are for off-road shorter throttle bursts, and the higher numbers are for on-road with longer throttle pulls. 👍