Re: Loss of power

I also have this problem, and I'm really scratching my head on it.  I replaced the plugs, fuel filter, ran with the gas cap open, but to no change.

I recently decided to do something foolish and run it for a trip, which it did fine on (I could get up to 75), but on the way back, it suddenly started to backfire a bit, then wouldn't go faster than 35-41mph, regardless of gear I was in.  It took forever to accelerate to that point, and saw the gas mileage go down to about 23 mi/gal or so (I had the throttle all the way open to keep it up to 35mph).

Took the fuel line coming from the fuel pump to the carbs off and noticed that there seemed to be very little pressure, but need to get something to measure that before I could claim that to be the problem.  

I also noticed that the battery is reading about 12.1V run reving to ~3K RPM, so I will get that checked, but I don't think that is the problem either.

Anyone know more about this?

<- 1995 XV535 Virago ->