jim kinser
Petty Officer 3rd Class
- Joined
- Nov 17, 2007
- Messages
- 94
Can anyone tell me the difference between a 61C and a 61D high speed orifice. As far as I can tell, there is no physical difference. I'm rebuilding a '77 140hp and I discovered it had a 135hp carburetor on it. It may be a '75 135 hp instead. There are .030 and .032 low speed jets and 61c and 58c high speed jets installed in the carbs.