1987 Looper v4 140 RPM only 4000

[THEFERMANATOR]

Just make certain to set the length on it right. If not you will DESTROY your lower unit. That shift shaft needs to be within 1 turn of the adjustment or else it will only partly engage the gear. If you hear any slippage or jumping when in gear, DO NOT RUN IT HARD! Ease it back to the ramp and find out why. This was a lesson learned the hard way for me. And start off with a 15 or 17 pitch prop. 5K+ shouldn't be an issue, but ideally on a small bore looper you want 5600-6000 with a moderate to heavy load at WOT.