GypsmJim
Well-Known Member
- Aug 8, 2018
- 1,173
- Boat Info
- '19 SPX 190 OB, 150 & 5 Mercs
'17 Whaler 150 Montauk
'15 Yamaha FXHO
'60 Mulray Dinghy
'52 Lyman 15'
- Engines
- Mercury 150 4-stroke
72 Outboards representing 12 manufacturers
You should be running about 5700, no problem. I have the same rig and that's what VesselView shows. My tach was off by the same amount as yours. After checking the tach specs, I found out that the dip switch on the back was set for the wrong engine.Does this sound right?
I have the 150 OB, the prop is 14.5 19 pitch blackmax.
When I push throttle all the way the rpm's go to 6500, significantly past the 5800 rpm spec.
Tried it with trim all the way down as well as trimmed up slightly. both smooth and light chop on water.
thanks
You can barely reach the back of the tach from under the dash, using a miniature screwdriver. Its a Fariah tach. Their web site shows the configuration and they have a chart showing the position for many different engines.