Stumped...

sampson9000

New Member
Joined
Apr 8, 2021
Messages
8
Hey, I have a 80cc anbull 2 stroke kit. I've tried everything I can think of and I am still having power issues. So I will list what I have tried...

New plug,
New CDI (Plug wire came off the old one),
Enlarged the old exhaust port gasket hole to match the exhaust (New gasket hole was smaller than the exhaust,
Moved the magneto timing back to stock,
Tested the magneto coil,
Tried the stock pilot jet from the stock carb in the new carb (ran too lean),
Checked the new spark plug coloration (was not extremely rich from what I can tell).

Does not seem to have an air leak as it does not idle high and returns to idle from rev quickly.

Could excessive vibration cause this? I did have to fabricate a engine mount for this bike(Townie Electra), which is solid but perhaps vibration could be reduced by removing the inner tube pieces from the frame.

This is the carb and new cylinder I put on it...




Could use some help...
 

Denis Zen

Active Member
Joined
Apr 5, 2021
Messages
95
Make sure the carb is as level as possible. Tape around the clamp area on the carb that clamps on the manifold and around the spot the throttle cable attaches to the carb.

What size jet are you using and what is your altitude?
 

DAMIEN1307

Moderator
Staff member
Joined
Jul 23, 2020
Messages
3,036
I've tried everything I can think of and I am still having power issues.
Here is a 2 stroke trouble shooting guide that just might be of some help to you...DAMIEN

Ps...Clicking on this PDF troubleshooting guide will immediately download to wherever yo0u save your downloads to.
 

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Blamb

New Member
Joined
Jul 28, 2021
Messages
22
Guess it was the carb...went back to stock. Have another question though. The bike wants to die at idle which causes me to have to set the idle too high... Any ideas what could be going on there?

Thanks...
All three of my bikes do the same until they warm up. Ride for about a mile and adjust the idle after that. Fixed all mine.
 

Karl Snarl

Well-Known Member
Joined
Sep 20, 2019
Messages
3,397
All three of my bikes do the same until they warm up. Ride for about a mile and adjust the idle after that. Fixed all mine.
To lean or rich, or to much oil fouling. Prob not to much oil, I don't foul at 24:1 when dialed in. I also don't idle very long either. Check ya plug. It will tell you. Listen to the exhaust, is it wet sounding, just right sounding, or metal pingy sounding? Rich, goldilocks, lean....
 
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