Originally Posted by atombomb232610
heres some pics. i will attempt the gps run on camera later.
I honestly just dont see how in the heck you're getting those speeds with a 36T sprocket..... but if you are as you say that's pretty incredible and you must be twisting that little Z-80 10,000 RPM's
I have the same Z-80 engine on a 26" bike with easy rolling wheels and a 36T sprocket, expansion pipe, well tuned DAX RT-15mm carb. shaved head, NGK B6HS plug & nice clean ports, at 38MPH this engine sounds like it is coming apart and stops pulling. it pulls very good to that RPM but is just wound out of itself at the 38MPH mark and vibes are severe at this speed.
I have another bike that has a 34T sprocket and even more engine work and it has never seen over 41MPH.
You must really have a jem of an engine there Atombomb232610...
hope it last a long time for ya..