Engine revs don't climb past 2nd gear

[declan]

Put in the general section as this is not a dt it's an am6 engine 1st and 2nd are fine after that the revs die right down and literally idles along at about 5mph

[Calum]

Is that the 50cc minarelli engine?

Should be in the technical engine zone mind you.

What's the compression like.

[declan]

@Calum sorry but yeah it is and it's got a new top end I'm replacing it with a dtr engine hopefully but I would love to know the issue compression is great reeds look good runs good other than an oil leak

[declan]

@Calum seems to go pretty good on a crate with the rear wheel in the air

[declan]

@Calum

[Calum]

Yeah but there isn't any load on the engine so it's not a fair test.

It could be a multitude of things, from bad ignition to bad fuel.

If the compression is good then it could be losing power through either the transmission or clutch.

[declan]

@Calum the clutch isn't great and you have to redline to start moving