The 1975-1978 shop manual shows a round reed block with replaceable reeds attached to the crankshaft. Can I remove that block by just taking off the crankcase cover the carb attaches to? The manual shows taking the crankshaft and pistons out first,but is a discourse in total disassembly.
Before I do that, I’m going to take another look at the carb. I got to thinking that the float seemed to be a bit on the heavy side when I took it apart. If it’s partially gas-soaked, maybe it’s allowing too high of a gas level in the bowl. I’m thinking at idle, that would be compensated for by the low speed mixture screw, but maybe a little extra gas is seeping up the main venturi? Does that make sense? I have a 7 1/2 HP parts motor that is just a few years older. If the carb looks good on that and looks like it will swap, I may give that a try before I open up the crankcase to check reeds. I really doubt it’s the carb, but it’s fast and easy to check out. That parts motor may have the same reed block too!
My neighbor wants it back by duck hunting season, so I’ve got until Sept 26th to get it right.
Dave
