As soon as the clutch engages it cuts out and just doesnt seem to want to go or have any power. I just replaced the clutch and i checked and no gearing is stripped, its gotta be something with the engine, perhaps tuning. On another forum they said i was running too lean, but its giving off a bunch of smoke which i thought means its too rich.

When its up on blocks and there is no real pressure on the engine it runs fine and full throttles without cutting out.

I have really been having problems with tuning because i really just dont know what im doing, i would let the shop show me how but im like 25 mins away and dont get there often. Any help?

It is too lean.

Open up the low speed needle about 1/8 turn

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Unlike four-strokes, two-stroke engines can only be tuned two ways when not running a computerized fuel injection set up.

They must be tuned under load. That means that there is no way the engine will tune properly when not actually powering the vehicle or device that it is in. Technically, this is true of four-strokes too, but four-strokes have a much wider torque range and are more easily adjusted.

Anyway, back to two-strokes (I assume that is what you are tuning).

Since you can't ride along with the vehicle to turn the mixture needles while the engine is under load, you need to anticipate what the correct mixture will be. The only way that you can learn how to do this is to do it. That is, make an adjustment, drive the vehicle and see how good your guess was. If it wasn't right, do it again and again and again and again. At some point your brain will begin to interpret the sounds that your engine makes and you will automatically learn which way and how much to turn the mixture needle(s).

For now, I agree with Jim, W8YE. It sounds like your low speed needle is too lean.

Don't despair. It won't take as long as you fear to learn this technique and you will then have something to be proud of. Just remember to always err on the side of being rich. Being too lean can damage your engine. Good luck. You won't need it, but good luck anyway. 8&gt


Ed Cregger

To set my engines i oppen the throttle to full and then lean the engine until it reaches max RPM and then turn the needle 1/4 turn rich