Question about 1998 Yamaha SZR 660
I've had ongoing problems with the vacuum fuel pump on this bike. When left for even a couple of days, the pump seems to darin down causing it to air lock. If you remove the vacuum pipe, ****/and blow into it you can hear air bubbles go thro the petrol in the tank. I'm thinking of replacing it with an electric pump. Any suggetsions from anyone on this idea? If I go ahead, can anyone suggest pump pressure, flow rate, etc...?
Hi, Anonymous for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Yamaha SZR 660
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Posted on Dec 17, 2016
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Posted on Jan 02, 2017
SOURCE: 95 xv750 Virago fuel leak
Probabilly a stuk carburettor float or needle.
Try to solve this problem to gently tap on the carburettor bodies. If this doesn't help you have to clean out the carburettors, and/or replace the float neeldes
Posted on Apr 02, 2009
Chances are there is a water build up in the carb float bowls. The water comes from condensation in the gas tank. Try draining the carbs. Another possibility is carburetor main jets partially plugged up. You must clean the carbs if plugged jets are found to be the problem. Please rate my answer. Thanks.
Posted on Jun 02, 2011
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Some bikes have a vacuum petcock. Whenever the bike started up the petcock opened itself up and whenever it shut down, the petcock shut down too. Check to see if the petcock is set to on. Check to see if the fuel line is hooked up. Check to see if you have a vacuum line, and if it's hooked up. Check to see if the gas tank were possible vacuum locking due to a clogged vent. Alternately haul off the carbs and clean them out. Check to see if the fuel filter is clogged. Also after cleaning the carb and refitting it you will need to add vacuum to that fitting. It is a safety devise to shut the fuel off to the carb. In case the rider forgets a small hand vacuum pump from harbor freight will do the job just fine
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