Gort
Ex Member
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I've had this identical problem in car engines over the years and it was always caused by fuel starvation. The causes for fuel starvation that I have seen are: Internally collapsed fuel lines due to alcohol blended fuels which are in every gasoline in CA., Octane booster additives collapsing the inside of the fuel lines, and just plain old internally deteriorating hoses. I always upgrade my fuel hose to the best fuel injection hose, right away. Its stronger than regular fuel hose, which doesn't hurt on a motorcycle that can be dropped. Another cause I've seen is a dirty fuel filter, or in the case of the Savage, a dirty gas tank screen.
Also gas tanks with un-vented gas caps and whose vent line is clogged. This creates a mild vacuum effect, especially on engines with no fuel pump to overcome it.
Dirty carburetor passages restricting fuel flow.
I've had engines rev to high RPMs in neutral, but not do so in gear. Thats because under load they needed more fuel and couldn't get it due to starvation.
Also, Stabil has a shelf life, and I've bought the product off the shelf only to find out the shelf life was expired, when I got home and read the bottle. Perhaps once past its shelf life, it solidifies, or reacts to other chemistry in fuel to solidify or increase its viscosity.
I agree with Verslagen...I would drain all the gas out of the bike, including loosening the bolt at the bottom of the carb bowl and drain the bowl as well. Also while you have it empty, I would replace the fuel line with fresh fuel injection hose. If that doesn't work, I would next remove the tank strainer and look at that. This would also be a good time to look in the tank with a flashlight for signs of rust.
Tomorrow I will look in my factory shop manual and my Clymer book to see if this problem is addressed. If it is, I will post what they say.
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