scottsville
Registered User
I have a problem that we can not figure out! I have a SC 150 with Penn Yan overhauled motor with 500 hours on it. I bought it with 220. Since then it has never ran to the rpm that prop manufactures say it should. Sen 74/56. Full throttle level flight 2500 rpms max. Borer 82-44 2600 max rpm straight and level with 2400 rpm climb out. So we put a new carb on and full At Lee dodge exhaust with hot rod muffler and went from generator to a new alternator. Checked mags. normal drop and timed right. Now it has less power than before. Very doggy specially at low rpms. Messed with idle mixture and got it flyable. But still very doggy, not peppy at all. In the process of doing this we found a broken primer line that we fixed and the throttle cable was not anchored so it was giving different throttle responses. We figure that was probably the main problem. But to no avail! Has anyone ran into this problem? Adjusting the idle mixture helped some. But per the carb manufacture it says its not effective over 1400 rpms. It sounds like it is flooded but no real signs of it being to rich. It runs like a old diesel truck. Very sluggish. Any advice would be appreciated?
Thanks Scott
Thanks Scott