The next i was waiting for…
125CC
18 HP
Rotating valve for fuel intake…
Having it stripped and cylinder in the shop for over bore, + 2.00 mm
6 Likes
This one will have to take the place from the chinese lifan 4stroke engine on the trike…
2 Likes
Koen, a two stroke rotary valve engine on the charcoal powered trike! Guess it has oil injection, too?
1 Like
Hi Ray, yes it has, tomorow will post some pictures from the insides of the engine
3 Likes
Sizing up, will fit the frame, measuring the volume in the cylinderhead.
Overbore 2.0 mm, adding about 8 cc to the 124cc original, bringing the total to 132 cc
2 stroke , with rotating valve and oil injection 
Cylinderhead , nice quenching shape, volume 13 cc
Gasket and distance from piston, aprox 0,8 mm, to be modified…
Can’t wait to hear this one roar…
Payed 80$ for the entire bike, and 15$ for the overbore work, including piston, gasket and pistonrings…
4 Likes
“2 stroke , with rotating valve”
Is there any way to get a picture of the valves?
Hi Brian,
There is 1 rotating valve inside, here are some pictures i got from the internet.
It works as a kind of a slide/door to open or close the entrance for the fuel mixture.
The advantage is the ease to modify and it has less restriction compared with the reedvalve
1 Like
Does anybody know what “GTO” stands for without looking it up. Remember, the first GTO was Italian.
Grand Theft Otto ?
Or Grande Tourismo Originale ?
1 Like
Grand Tourismo Oh i forgot
2 Likes
Just woundering how long them rotating valves have been used,and are they hard too rebuild too keep valve clearance proper? Thanks,nice engine photos.
1 Like