Ok thanks graham. Ill stick with 91 then. Cheers.
Both are more than was ever required by the mfg (Merc) - 86 octane with no more than 10% ethanol is what the book calls for - and they warrantied the
While checking the static timing on this motor I noticed the secondary throttle pickup screw seemed to be loose. It fell off when I touched it. Now
Hi. Another fuel question. I been running 91 octane fuel in my late 80s black max 75hp. A friend said i be better running 95 octane. Would that be better
There is also the scenario of that used lower unit with the exact same system in it... but maybe that isn't even the problem?
I'm basically fixing