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Honda MX & Off-Road Dirt Bikes
XR100 engine trouble
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[QUOTE="atc3434`, post: 615384, member: 25493"] I can't speak to the question about the spark plug, but as the gasket set, it depends. I've never had a problem, but I suppose if the carb has been together for a long time, you could tear a gasket a little, and that would not be good. You don't want to tear the carb down on the bike. Its not too hard to get off. First you want to loosen the collar on the airbox with a screwdriver. I like to get it pretty loose so I don't have to figth it putting it back on. Make sure when you do put it back together you get it all over the carb mouth good, and none of its folded under. You want a good seal. Next you can remove the two bolt on the front of the carb that hold it to the intake piping. Make sure your gas is off, and then unhook your gas line. Now you can slid the carb back off the studs on the intake. Now you need to unscrew the top of the carb. This contains a spring and the slid, as well as the needle. Be careful, it will sometimes pop open quickly, you don't want anything to go flying. Now I usually just let the slid and needle dangle, but you can tie it up out of the way if you want. Now you can go ahead and take off the float bowl. Once you get inside, you should take out the pilot and main jets. I then clean everything quiet liberally with carb cleaner. Jets too, they often have the clogging material stuck to them. Make sure you spray all the passages in the carb body. The main, the pilot, as well as the two air guide passages on the intake throat of the carb. I like to use a little compressed air to blow the passages out after I shot them some with cleaner. It can help, if you have the access to a compressor. Clean the fuel inlet as well. Make sure you don't lose any of the little pieces with the float when you tear it down. Then reassemble. When you put the slid back in, it has to align correctly. You'll notice it has two slits in it. If you look down the carb body where the slid goes, you'll see there is a guide on one side, and the idle speed screw on the other, both at different heights. So make sure you line the slid up with them, it can be tricky. Then finish your assembly. If you did everything right, you'll know soon enough if your carb was your problem. She'll either be running good, or just the same as before. Make sure you set the air screw back to the stock recomendation after the cleaning. Actually, you should back it out quite a bit before the cleaning, so it gets a good shot of cleaner too. Well dude, I hope this helps. If you have any trouble, we'll do our best to help. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
XR100 engine trouble
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