Watercooled engine stuttering

[Rodney007]

Hey just got a GRC rep watercooled 40cc from trademe.

engine stutters when loaded. free reving on stand is fine,

any ideas? running 1 25 for running in

[Mr Merde]

Hey just got a GRC rep watercooled 40cc from trademe.

engine stutters when loaded. free reving on stand is fine,

any ideas? running 1 25 for running in

How heavy are you?

[Rodney007]

65-70kg

opend up carb and cleaned,,, = runs minta :-D

[Gadgit]

Musta had a blocked main jet. What you have decribed is a lean air fuel mixture under load. From factory I have found the reverse engines to run a little lean so dosn't take much to block 'em up.

[prettybillie]

Musta had a blocked main jet. What you have decribed is a lean air fuel mixture under load. From factory I have found the reverse engines to run a little lean so dosn't take much to block 'em up.

Hey Bud

What ratio do you recommend running these little buggars on?

Ta
PB