20-06-2019, 07:00 PM
John, please don't be afraid. This Grandpa has no idea how to suck eggs.
I've looked at the pump and cannot see what I can do to stop it forcing too much fuel into the carb. The carb has been completely rejuvenated and for the moment has extra washer under the inlet valve. Happy to remove that if it will help. Clearly something is going wrong but I cannot see what to fix ?? Its been mentioned that the "pump spring" is too strong, but how does one make a spring less strong? I don't have an old pump to hand.
I do have Woodrow's exploded picture of the pump (page B-5), so feel free to reference any of these bits that need fixing/tinkering/adjusting or what.
The bypass seemed like a logical getaround, rather than an elegant solution.
I've looked at the pump and cannot see what I can do to stop it forcing too much fuel into the carb. The carb has been completely rejuvenated and for the moment has extra washer under the inlet valve. Happy to remove that if it will help. Clearly something is going wrong but I cannot see what to fix ?? Its been mentioned that the "pump spring" is too strong, but how does one make a spring less strong? I don't have an old pump to hand.
I do have Woodrow's exploded picture of the pump (page B-5), so feel free to reference any of these bits that need fixing/tinkering/adjusting or what.
The bypass seemed like a logical getaround, rather than an elegant solution.