Tip & How-To about 1987 Yamaha FZ 600
Gas goes bad after 30 days and after 6 months, Boy does it gum things up. i know this because, i do this for pleasure and my living. 99.9% of the time its the low idle jet thats going to be the problem. its the smaller of the two jets. the larger one is the main jet. remove the float bowl and with a very good screwdriver, remove the jets. those would be the little brass things with the hole in them. you must be able to see through these hole. so hold them up to the light and take a look. use a little carb cleaner and a air compressor to blow them out. if your carb has an accel. pump fill the float bowl with a little carb cleaner and make sure it works and that the diafram has'nt any holes or tears in it. you can check by holding the diafram up to the light also.now. you'll need to remove the air mixture screw and clean it as well. turn the screw inward and count the turns before you turn it outward. be careful there will be a small spring ,washer and o-ring. in that order. clean the rest of your carb with cleaner and she'll run like new. one other thing. the needle and seat of the fuel inlet.with the float in the up or full position, you should not be able to blow through the fuel inlet. you may need to adjust the float and or replace the needle and seat. otherwise fuel will continue to run causing it to overflow or worse fill your crankcase with fuel. i hope this helps alot of you. have fun and ride safe!
Posted by edbiggs on
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