Question about 1990 Yamaha FZR 600
Hi, Maneschris run a jumper wire from the battery positive to the power feed of the pump sorry you can't find the first and best tool you ever bought for your Yamaha despair, not for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Bad fuel pump think Please Help
Yamaha FZR 600 Fuel Filter Fuel Pump problems
OEM parts for Yamaha
Posted on Mar 30, 2016
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Posted on Jan 02, 2017
Sounds like the plugs are fouled out, I would pull them and make sure they're about the color of a paper bag. If they're all sooty and wet you most likely have a rich condition. I would take the carbs out and clean everything and pop in a new set of plugs. I have a 87 Fz600 that was acting up until I cleaned the carbs.
Posted on Apr 20, 2009
hi m8,, pretty much any fzr motor will fit,, the only thing thats different is the water pump pipe from the rad to the pump at the bottom of the motor,, so may have to re route it,,check that 1st b4 gettin the motor, appart from that all engine bolt holes will line up and the rest will fit,, cheers m8
Posted on Apr 28, 2009
This is not the news you probably want to hear but backfiring thru the carbs when you have good spark can be one of 2 things... either the valves are sticking / not closing properly due to carbon or the cam timing has shifted from the original position.
It would be best to do a compression test. You should have a minimum of 100 PSIG for an engine with major problems and up to 150 for a healthy engine. If you can not get 100 PSIG then it will be time for some serious engine service.
There is a possibility of the kill switch wire in the handle bar grip grounding under the grip to the handlebar but, since you said you have killer spark I doubt this is your problem.
Thanks for using FixYa.
Posted on Jun 10, 2010
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