Home › Forum › Ask A Member › 18HP saga continues. Can’t get past 14mph and 3,900 RPM. › Re: 18HP saga continues. Can’t get past 14mph and 3,900 RPM.
Yeah, revving in neutral doesn’t really prove anything. It takes very little effort to make it WAY past 4500 when no-loaded. It would probably do it with one plug wire off. Very bad form. 😉
As for the adjustable jet thing, I was thinking that even if it didn’t fit in the lower pan, you could cut one short, file a slot in the end and tune it with a screw driver, or something of that nature, just to prove or disprove a point.
By the way, 18s do use a ton of fuel. Even good ones. Maybe it’s the relatively small carb bore of the earlier ones. (Pre-’69) I don’t know why; but they do. I don’t want to start a crap storm but Mark 25s are way better on fuel, in my experience.
Long live American manufacturing!