Hello all,
Last year I built a friction drive/ Subaru 35 setup and had about 600 miles on it and started to experience frequent engine cut outs at full throttle. It seems that the engine would starve for fuel when at maximum RPM. If I let up on the throttle just a little it seemed better. Well, after messing around with cleaning the carb and fuel filters I still couldn't solve the issue. So I sold the motor and bough a new DAX Titan 50, which works mint by the way.
Anyway, my Dad just recently built a similar setup with a new robin Subaru engine and is experiencing the same cut out issue that I was having. After checking several things and nothing seemed to fix it. So, just by chance, he wanted to see what would happen if he clamped off the return fuel line from the carb to the gas tank. BINGO.... he said it has completely solved the issue and that the motor runs better then ever. So, if you have a similar problem and want to try something simple, just clamp off the return line and take it for a ride. Please post back your results.
I believe what may be happening is that the return line is causing bubbles in the tank which is then picked up and sent to the carb causing fuel cutout problems at high RPMs.
let me know!
Bob
Last year I built a friction drive/ Subaru 35 setup and had about 600 miles on it and started to experience frequent engine cut outs at full throttle. It seems that the engine would starve for fuel when at maximum RPM. If I let up on the throttle just a little it seemed better. Well, after messing around with cleaning the carb and fuel filters I still couldn't solve the issue. So I sold the motor and bough a new DAX Titan 50, which works mint by the way.
Anyway, my Dad just recently built a similar setup with a new robin Subaru engine and is experiencing the same cut out issue that I was having. After checking several things and nothing seemed to fix it. So, just by chance, he wanted to see what would happen if he clamped off the return fuel line from the carb to the gas tank. BINGO.... he said it has completely solved the issue and that the motor runs better then ever. So, if you have a similar problem and want to try something simple, just clamp off the return line and take it for a ride. Please post back your results.
I believe what may be happening is that the return line is causing bubbles in the tank which is then picked up and sent to the carb causing fuel cutout problems at high RPMs.
let me know!
Bob