My 83 Rangy stalls under throttle.

Air filter ok?

Fuel pump, thought I would expect it would have problems at High revs too.

In the tank on some early Rangies was a filter, like a sock with a spring in. When the Spring rusts the sock can suck its self in causing a blockage. To fix insert a new spring or remove sock and fit inline filters. I'm not sure which year they stopped doing this.

Do you have an inline filter by the Carb feed?

Lee D

Stromberg carbs also have the damper screw on top, AND a rubber diaphragm which splits and could cause your problem. If they're SUs there's no diaphragm to worry about.

Andy Fox

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Thanks for that Lee D. Yes I do have the standard filter before the carb, which I cleaned. Prior to that a lot of dirt was getting through it. So some must have gone into the carby. I cant check the other as I'm off the island at the moment. There is a mechanic there, but I know these blokes, they'll replace averything till they fix it.

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Thanks Andy I'll check that when I'm next on the Island David