2.0 Questions

[Capt.Insane-o]

26 cc on the heads
200 tuner
CCMS or TDR reeds...boysens suck.
WH 39 or 46 carbs..the stock jetting will be close
Solid mounts of course and while your that far a fat tiller shaft from a newer motor. The life you save may be your own. They will pull okay to 6800 on a light boat.

[TNRoostertail]

I just found a 2.4 200 tuner local. Trying to buy it now. Is the fat shaft just a thicker drive shaft? Or will it require different yoke setup at the lower and engine?

[TNRoostertail]

What will be a safe rpm level for my setup, as in longevity? I'm not a drag racer like you guys lol. I would like to see 6200-6400 though if safe.

[Gordon02]

I've got the big carbs, I have opened and smoothed my chest, so yes - I plan on mine making good power at 5,500 + and I do plan to turn it 6,200 ~ 6,400 when at full play. I'm not a WOT guy, but this motor is for whatever I want it to do. I'm having my pistons top-pinned and will use brand-new rod cap bolts to factory specs. Not sure what it's going on yet. I thought I wanted it for the GT150 I'd build one day, but now that I have the boat - I realize the limits of this hull to handle that level of performance. The V4 and 140 hp crossflow I'm building will be all that I can handle. With no pad, it needs to stay below 60. Gordon

[Merc 2.5]

I just found a 2.4 200 tuner local. Trying to buy it now. Is the fat shaft just a thicker drive shaft? Or will it require different yoke setup at the lower and engine?

Make sure it's the bell tuner , it will have a flare at the end

[Merc 2.5]

Fat shaft had 19 splines I think. Small 15. wouldnt worry bout lower if it's ok, 6200 6400 fine but if u get it down to 6k u will have good bottom and top , it's a good balance point for blast off and top speed

[Gordon02]

The article was specific - Mercury part# 41941C - here is a side view. This is quite short at approx 7" in total length

[Merc 2.5]

Sry Gordon. didnt read article

[Gordon02]

Oh yea, those solid mounts are sweet. These came from Bob's. I had the Land and Sea mounts on my Johnson GT150/Allison and then this SS ProMax came solid too. Love them.

Here are the ones just installed on the 2.0L build -

[TNRoostertail]

Thanks for the good info guys. What heads can I look for exactly? Will 2.5 heads work or just the 2.0 heads? Thanks

[tnelsmn]

I just found a 2.4 200 tuner local. Trying to buy it now. Is the fat shaft just a thicker drive shaft? Or will it require different yoke setup at the lower and engine?

Capt is referencing the tiller arm on the mid. Not the prop shaft. Heres a new style "fat" tiller and an older "skinny"

[TNRoostertail]

Is that pressed on? I would prefer the fat arm. The one on my buddies pro max is much beefier like the one on the left.

[tnelsmn]

I believe its the entire swivel pin that would need to be changed, not just the tiller are itself.

[Dave S]

and the fat one is from a 3 ram...... the fat ones from a 1 ram are hard to find......the thin ones are fine for boats not flying on the prop shaft.....