Question about 1989 kawasaki KR-1R

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Exhaust cleaning want to get my exhausts clean and was wondering were you get the bits?i thought hang them from shed roof with some wire through the end can bolt holes and fill with caustic soda.but what do you use to plug the exhaust end? will i be ok just putting my cans on the house fire(still on solid fuel open fire)and then polishing them back up when they are clean,or is a blow torch best Confused need to do it cause i think its choking the engine up,and i should be getting one of my good engines put back in soon Very Happy cheers that man

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Caustic soda is very messy but works well. to block up the stinger end, use a spud and fill from the ex port end. not sure about std cans as there sealed. i think too much heat will turm them to ash so be very carefull. i use oxy/acytelene gear to decoke my pipes rather than caustic but only as the gear is at work. stinks f awful though. after getting the pipe to glow, tap with a rubber/wooden mallet so the now dried depostits drop out. bike will feel much sharper afterwards.

Posted on Nov 20, 2008

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I can't get spark from my 2006 yz 125, i changed the spark plug and the coil. I also unplugged the kill switch to make sure that wasn't faulty. what else could cause me to not get spark? I also...


There are a lot of tiny fuel and air passageways in the carburetor that must be kept clean it order for your scooter to run right. Carefully, take the carburetor apart. This can be relative easy. The carb has tiny passages that can get gummed up. Your bike will not run correctly if the carburetor isn't completely clean, so take your time. I use a gallon container of carb dip (you can get a gallon at your local auto supply store).
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If you have an electric choke, check it to make sure it works. Check the resistance between the wires - you should see around 10 ohms or less. Measure the length of the choke assembly. Remove the choke from the carb and plug the wires into a 12V source for 15 minutes. The choke body should be warm. Measure the length again - it should increase by around 1/8".
Next, consider whether your exhaust pipe is clogged. This is especially a problem with older two stroke scooters. The unburned fuel/oil mixture builds up in the exhaust pipe along with carbon over time. If the exhaust pipe is clogged, your scooter will run terribly or not at all. It can be difficult to tell if the exhaust pipe is clogged. The easiest way to tell is to remove it and try starting your scooter. It will be a bit loud - two strokes will sound like a chain saw. If it runs with the exhaust pipe off, you know that is the problem.
put a meter on the kill switch to see if you get voltage across it and check the magneto i would think that the contacts have gone rusty clean them with some fine sandpaper
also if the bike has been standing for a long time(six months or more) then replace the fuel because when its old it loses some flamabilty

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1 Answer

Eton four-wheeler will only start for a second after I spray carburetor with carburator spray help me to get it to run


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First, remove all of the rubber and gaskets or they will get damaged. After a 20 minute soaking in carb dip, I blow out the carb with compressed air. You have to get all the jets and the passageways clean. Be sure the jets are clear, especially the starter jet. Sometimes carb cleaner won't clear out these tiny jets. Use a guitar or a piano string, a strand of copper electrical wire, or a tiny drill bit pin vise. Be sure not to increase the size of the hole in the starter jet or you'll change the tuning. Carefully reassemble everything, checking for cracks in the rubber carb boots and the gaskets. Replace them if they are old and cracked. Be sure and remove all rubber and gasket material first or they could get ruined. Spray carb cleaner also works if you're diligent.
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Next, consider whether your exhaust pipe is clogged. This is especially a problem with older two stroke scooters. The unburned fuel/oil mixture builds up in the exhaust pipe along with carbon over time. If the exhaust pipe is clogged, your scooter will run terribly or not at all. It can be difficult to tell if the exhaust pipe is clogged. The easiest way to tell is to remove it and try starting your scooter. It will be a bit loud - two strokes will sound like a chain saw. If it runs with the exhaust pipe off, you know that is the problem

hope this helps

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1 Answer

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1 Answer

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