I have a 1996 Yamaha Virago 535 and my fuel pump runs but no gas goes to my carbs. It has sat for a few years and I just cleaned out my carbs and tanks and put in new gas.
SOURCE: 1990 yamaha virago 535 sat two years
If it is possible to start at all. Fresh fuel fresh engine oil good battery. You may have the following problems; Corroded and blocked carburetor fuel system, bad wire connections piston ring set up.... I hope it was kept indoors and the fuel was drained out before it was left sitting. Good luck, they are nice bikes.
SOURCE: Won't idle without choke
The pilot jet controls the air/gas fuel mix at idle . If the jet gets plugged up not enough gas gets to the emgine at idle. You will need to remove the carbs and float bowls and clean them, paying special attention to the pilot valve. Count the number of turns to remove the pilot screw and replace the same number of turns then turn counter clockwise 1/2 turn.
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SOURCE: im working on a 1996 535 yamaha virago. when i
Do you hear spark arcing on both? If so might be norm.
SOURCE: car wont start, install new fuel pump ,if u dump
OK, first, let's clarify one point. Your 1986 Chevrolet Nova does not have a carburator, it is equipped with Throttle-body Fuel Injection.
You should be able to look into the throttle body and see fuel spraying from the fuel ijector while you are cranking the engine over. If not, then there is a whole list of things that could be causing the fuel to not spray. Here are some of the possibilities:
Low fuel pressure (for several possible reasons)
no B+ feed to injector (for several possible reasons)
bad crank sensor
bad PCM
broken injector wires
bad injector
If it runs with fuel poured down the throttle-body, it is definitely a fuel-delivery/fuel injection problem.
SOURCE: 95' Yamaha Virago 535 will start but will not stay
Did you try to increase the idling adjustment screw?
Check the spark plugs for its condition and thn reset the air-mixture screw.
Standard procedure for setting air-mixture screw...tight it all the way in, taking care to not over tighten or the tip of the screw may be damaged, thn turn outwards 2 & half to 3 turns, start your bike's engine ,run it to normal temp. and the reset the screw + - alittle either way and you should notice the difference in the idling and all.
Its better too, to also check the valve clearance !
Hope this helps!
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