New to mercs - what exactly do I have here?

[JoshKeller]

Since this is a 150 mid/lower does it having 2:1 gearing change prop selection any?

[nitro_rat]

Just saw this but from your photos it's definitely a 2.4 200. Merc2.5, you can see the side of the airbox in one of the first pics.

JoshKeller, did you count the revs of the propshaft to driveshaft to determine if it's really a 2:1 lower?

Since this is a 150 mid/lower does it having 2:1 gearing change prop selection any?

One pitch. 24 pitch on a 1.87 is roughly equal to a 26 on a 2:1.

[Merc 2.5]

Just saw this but from your photos it's definitely a 2.4 200. Merc2.5, you can see the side of the airbox in one of the first pics.

JoshKeller, did you count the revs of the propshaft to driveshaft to determine if it's really a 2:1 lower?



One pitch. 24 pitch on a 1.87 is roughly equal to a 26 on a 2:1.

Yep I seen that

[JoshKeller]

I have a buddy willing to give me a 24 trophy 4 blade. Good choice? He has none of the plugs - should I get the solid plugs, small hole, medium?

[JoshKeller]

Upon further review I believe it has 1.87 gears in it. Marked flywheel and prop shaft at 12 o clock. Turned flywheel one whole revolution. Prop mark was at 11 o'clock after. A little hard to see the mark, it's in the beam of sun

[Merc 2.5]

Yes 1.87. And 24 great 1st choice to (try) mite need get it pitched up to 25 or 26. But ur 24 can got up to a 26 with work

[JoshKeller]

Yes 1.87. And 24 great 1st choice to (try) mite need get it pitched up to 25 or 26. But ur 24 can got up to a 26 with work

Great. Thanks. What plugs would be good to start with?

[Merc 2.5]

Buhw ngk

[JoshKeller]

Buhw ngk

I meant in the prop. Looks like they have full plugs, small hole plugs and medium holes

[Merc 2.5]

Start with all in and start pullin 1 plug at a time until u like the slip and hole shot , start gauging that way
Should b fune this way to get a round about of what u need