No compression

[Hamood]

Hello everyone I installed this 80cc engine new 3days ago but I am not getting compression in the cylinder like if I remove the spark plug I am getting good compression but if I install the spark plug I am getting very very less compression that also by rotating the wheel at low speed please help

 

[wrench]

Hello everyone I installed this 80cc engine new 3days ago but I am not getting compression in the cylinder like if I remove the spark plug I am getting good compression but if I install the spark plug I am getting very very less compression that also by rotating the wheel at low speed please help

S/P removed ya get good compression?
S/P installed ya get less compression?
What???

If your not getting compression, Check the head gasket for a compression leak

 

[Hamood]

S/P removed ya get good compression?
S/P installed ya get less compression?
What???

If your not getting compression, Check the head gasket for a compression leak

I tightened the spark plug properly but I am not to start the engine by pedaling

 

[wrench]

I tightened the spark plug properly but I am not to start the engine by pedaling

Do you have a 1 pc Jug or a 2 pc Jug
1 pc - cyl and head is 1 pc
2 pc - the head can be removed from the cyl

 

[Hamood]

Do you have a 1 pc Jug or a 2 pc Jug
1 pc - cyl and head is 1 pc
2 pc - the head can be removed from the cyl

2pc

 

[Hamood]

I think the clutch is not grabbing the plate while I pedal it that’s y it’s not starting

 

[wrench]

Since it's a new engine the clutch flower (star) nut needs adjustment.

Check your clutch cable adjustment too