I am having a problem w/ chain/clutch?

There is this problem that I keep running into, and I can't seem to find any info on here. I had my bike running, not running well, but running. Anyways I shut it down and came back the next day to tune it up, and I turned the carb adjustment until it was tight then turned it counter clockwise 3 1/2 to 4 turns like the instructions said, and when i popped my clutch the back wheel locked up, so i pulled in my clutch and attempted to start again and my chain popped off. I put the chain back on and tryed once again and this time it locked up the rear wheel and broke the chain, and now like 4 or 5 links are all bent and need to be replaced. Does anyone have any idea of what my problem might be? I couldn't post pics here but here is a link to my pics of the bike. New Bike Project pictures by rkorson4209 - Photobucket

I doubt the idle speed screw adjustment caused your problem.

I would check to see if the chain is caught between the sprocket cover (left rearmost cover) and the sprocket, or between the sprocket and the engine casing itself (both are common).

You can get a replacement chain at Tractor Supply Co. cheap.

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If it ain't broke, and you mess with it long enough, it will be.

If you look a bit further you will find hours of info about chain problems.

Well I got my chain problem solved now after reading endless posts on here. Now my bike seems to be running pretty good, but for some reason I am unable to turn the choke all the way off or it will bog down. Also what it just started doing is when I disengage my clutch to let it idle it seems to rev really fast and its smoking pretty bad I even have smoke pouring out of the head around the seems is this normal or no

Not normal. Change that gaskit. Probably fine after that.

like marts said

From everythin' you've mentioned it sounds like you've a drastic air leak caused by the head not fully torqued down and/or a missing/torn head gasket.

Sometimes they don't mill the surfaces enough for the cylinder and head to meet flush, but it prolly needs just to be tightened a bit - don't over tighten it though else you risk breaking or stripping the bolt/nut. Snug em 'up

Didn't even think of just tightening the bolts, that would be too easy. I'm losin it I tell ya..

Well my chain is giving me some problems, and I checked it, and it is really really loose. I think maybe your chain was loose when this happened? I know that my chain is about to do what yours did, based on how it's been acting, with the back wheel locking up and stuff, it's cause it's waaay too loose and getting caught like they said, in the sprocket area.

If you recognize this condition why not take care of it before it causes you real problems? If you are using the chain tensioner simply raise the position of the wheel until you have about 1/2 to 3/4" slack in the chain. Failure to maintain proper chain tension and alignment can be dangerous and expensive. People have destroyed their rear wheels and had them lock at speed. Guess what that would be like. Fix it now and enjoy your ride.
Tom

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If you didn't see the post the black RTV gasket goo held the tensioner in place as well as the bottom motor bracket...no drilling or jiggs req.