Reply To: GT125R 2008 High Idle
Remove the throttle cables and choke cables
Can you rev the bike manually by hand ? and does the RPM needle come down FAST or SLOW or just hang about for a bit then slides down ? etc…
If not sure ===> Go to youtube , upload a video and select it as “UNLISTED” so no one finds it on youtube , then copy the SHARE LINK paste it here.
Dont set it to “private”
This lets us see what is happening, don’t be afraid if its a 3 minute video (10 second videos suck as they dont help make a proper judgement)
Remember = High revs on CV carbs usually means illegal air is still entering or carb is “hunting” for fuel (carb internal issues) or exterior parts (moving cables or choke assembly rail on the carb jammed etc) are still activating the carb to allow more air than usual.
Put mixtures back to 3 Turns out FRONT and 3 + 1/4 Turn out rear, this sets the baseline.
Jetting Tutorial = Click Here
SLIDE needle tutorial = Click Here
Did you change the Intake O-Rings ? They are a big deal than you think, click here
Airbox missing? = Carbs will behave rough, make sure airbox is on and is fully swallowing the front carb as it can peak out.
Get a fresh set of CR8E plugs from halfords . Buy a pack of 4 (2 for test ride) and 2 for emergency
Come back , upload pictures of your plugs on this forum , we gotta see inside the plug and the threads, this will tell us the mixture from idle all the way to 3-4th gear riding down your street.
I said a lot, but please, take your time. 1 thing at a time, so you can see its mood change gradually till you find the culprit.