Quote:
Originally Posted by dirtbkr188
The carb needs to be fine-tuned for your particular area and altitude. What sizes are the jets in the carb? I would guess using that screen-door for an air filter is making it run lean and may explain the high idle. Moving the clip UP a notch is leaning out the mixture even more. Dropping the clip DOWN richens the mixture in the 1/4-throttle to 3/4-throttle range.
Turning the air screw IN also richens the mixture in the idle to 1/4-throttle range, and the main jet controls from 3/4-throttle to wide open.
What size jets did you order?
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The current Jets are whatever came stock with the Mikuni VM26. dirtbkr188 called out they are:
The Mikuni VM26-606 comes stock with a #190 main jet and a #22.5 pilot jet.
I ordered a 115 Main and a 30 Pilot based on what others have used on the forum.
I expected the air and fuel screws to make a difference when running. From the videos I've watched about tuning carbs I was thinking having them both in would at least cause the engine to get close to stalling. I'm not a motor person, so this is all a learning experience to me.
If it's running lean, that means there is less fuel than needed right? I still don't fully understand the side effects of lean vs rich. I've looked it up a bunch of times and the side effects sound the same for both to me.
For the filter, would I be better off stuffing some foam into that to help reduce the air flow a bit? Is that what you mean by screen door causing issues? I wasn't aware that a filter like that wasn't a good idea, I just looked for something that fit and would protect stuff from getting sucked in.