To tune carb:
1. Adjust idle screw (head outside one) clockwise until RPM like 2500-3000. Engine must warm up already.
2. Adjust air-fuel screw (head terbenam inside one) clockwise until tutup habis. Bike will want to mati engine... if mati, nevermind.
3. Open air-fuel screw counter clockwise for 1 round. If engine mati just now, start again.
4. Let engine run with this setting for 5-10 seconds, or until the RPM steady. Don't kacau throttle.
5. Turn the air-fuel screw counter clockwise by 1/4 of a turn, and wait until RPM steady. Don't kacau throttle.
6. Repeat this until you turn the air-fuel screw and the RPM don't change, then close back the air-fuel screw clockwise by 1/8 of a turn. If not, it will be too lean and then the off-idle will suck.
7. Last step, go back to the idle screw, turn counter clockwise, until RPM turun to 1.3~1.5k. Play the throttle by tap it open-close a bit (about 1/8 throttle) fast fast, see the RPM can follow or not. If cannot, close the air-fuel screw clockwise bit by bit (again, bit by bit, very sensitive one) repeat this until you syiok with the play throttle feeling.
If good setting, morning will harder to start if use no choke. But, LC got smart CDI that can help warm up engine one, so this may not be the case. Good luck, and remember to share experience here.
A few hints, if you experience with you bike. In my case, I can hear exhaust sound different when adjusting the air-fuel screw 'bit by bit'. It is really sensitive.
Nice info here.. will adjust it when got time...
@mls - haha.. i will stick to lc until to my last breath.. maybe in future buy superbike.. but for tracks play.. i will use lc.. less $$$ out if fall on track..
i hope i also can do this..
Aug 26 2011, 02:52 PM
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