Question about Suzuki Motorcycles
I cant get my JR50 to idle when the choke is off. I have adjusted the idle speed screw at many different positions and tried the mixing screw in many different positions. I have also removed the air filter and still cant get it to idle without the choke.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: idle problem
An air leak somewhere between the carb and the cylinder can cause the RPM problem. Tighten the mounting bolts. The carb may be clean but there is still a problem on the inside. Possibilities include plugged main jet, and/or needle jet. Also an incorrect needle jet setting. You have a very sophisticated carburetor. If you have already cleaned the inside of the carb I would let the dealer check it out.
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Posted on Apr 06, 2009
SOURCE: cant keep idle at one rpm
First, check that you gas cable is not kink or something when you replace the tank. Also do you know the procedure to ajust the carb. Let the motor heat up and ajust the two screw. Does the choke keeps on, or have something broken. Something big is just on front of you. PAtience, you'll figure that out... It doesnt sound like something that needs to be clean here...
Posted on Aug 05, 2009
There have an air leak between the carb and the cylinder and/or the head and cylinder. Old hard / cracked rubber fittings and O rings are usually the problem. When extra air gets into the system it leans the fuel mix and the high idle is the result. It also means the engine runs hotter. Also, cracked or broken reeds can be a source.
Posted on Aug 10, 2009
If your bike ran good previously - and nothing has been changed that would require rejetting or a needle adjustment, I would look for problems elsewhere. Such as:
Has the bike been stored for more than a few months at a time? If so, the carburetor jets could be plugged with fuel varnish. Only being able to start with the choke applied - and an inability to idle are both classic symptoms of this. Remove and disassemble the carburetor. Clean it and the jets out with carb cleaner and compressed air, then reassemble. Also make sure the fuel in the tank is fresh and that the fuel strainer (usually with the fuel petcock) is clean.
There are three ingredients required for combustion: fuel, compression, and a spark (at the right time). So long as you've got each of these - it has got to run.
Posted on Feb 21, 2010
You didn't say for sure what year your 125 is. If it is an older bike '85, the tank has a single bolt at the back. Remove the bolt and shove the tank to the rear of the bike about 2 inches to clear the rubber mounts, then lift upward. See diagram. I haven't worked on any newer 125s but if the picture in the posting is what you have, the seat will probably need to be removed to get to any mounting bolts for the tank.
Posted on Aug 07, 2010
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