The original 196cc engine was just not cutting it on the hills. The main seal on the crank was leaking and the governor was worn and bogging down the engine when it should not have.
So a new Non-Hemi engine from Harbor Freight 212 cc was cobbled in today. I was able to find a new old style engine. Most of the parts were transferred to the new engine. The clutch on the 196cc engine will N O T fit the 212 engine as it is too small. I had a spare non-roller bearing clutch that was proper.
The chain drive had to be modified to match the holes in the new engine, it all matched up in the end.
The flywheel and coils as well as the sheet metal wire guide and plate all matched up.
Oiled up the engine and filled the tank with alcohol free gas. The engine started on the first pull. Once warm the idle was adjusted down to normal.
He took the bike for its first ride for a mile or so and the engine worked as it should.
We drained the oil and got the milling particles out of the crankcase and refilled with fresh clean oil. The drive chain was adjusted.
I took the bike for a ride and GPS said the bike did 25 MPH before the governor kicked in ( throttle stop screw back out fully)
The bike will pull a wheelie with my 200 pounds on it!
We will do another 20 mile ride in the mountains in the AM. Should be fun.
So a new Non-Hemi engine from Harbor Freight 212 cc was cobbled in today. I was able to find a new old style engine. Most of the parts were transferred to the new engine. The clutch on the 196cc engine will N O T fit the 212 engine as it is too small. I had a spare non-roller bearing clutch that was proper.
The chain drive had to be modified to match the holes in the new engine, it all matched up in the end.
The flywheel and coils as well as the sheet metal wire guide and plate all matched up.
Oiled up the engine and filled the tank with alcohol free gas. The engine started on the first pull. Once warm the idle was adjusted down to normal.
He took the bike for its first ride for a mile or so and the engine worked as it should.
We drained the oil and got the milling particles out of the crankcase and refilled with fresh clean oil. The drive chain was adjusted.
I took the bike for a ride and GPS said the bike did 25 MPH before the governor kicked in ( throttle stop screw back out fully)
The bike will pull a wheelie with my 200 pounds on it!
We will do another 20 mile ride in the mountains in the AM. Should be fun.