I am in the process of repowering my 22` Champion and was wondering what to go back with. I t currently had a Merc 225 efi Should consider a 4 stroke or 2 stroke ?

4 stroke

2 Stroke.

Diesel

been very happy w/my honda since 04

4 stroke.

No question,,,go four stroke.

Better fuel economy, less smoke and fumes, better lugging power, much quieter, smoother running at low speeds.

After running 2 strokes for 50 years, I switched to a Mercury 4s 75hp and love it.

2 stroke for another year or so till all bugs are worked out of the 4 strokes.

They have had the "bugs' worked out on four strokes years ago. I switched to a four stroke 3 years ago and would never go back. Its just way better any way I look at it.

I guess that is why I see an sho go up in smoke almost every
Tournament. Gooluck

LMAO, ya my SHO blows up at least 3 times a year.

Honestly new technology will always have room for improvement, but I fish as much as anyone and have not had any issues with my SHO.

I think Yamaha has learned and improved a lot since they first came out, but they are still new. But having one with 130+ hours on it, I would say go 4 stroke.

can any one tell me is there any proformance differences on whole shot and top end?

4 stroke

4 stroke is more fuel efficient.

2 stroke has better power to weight ratio (not as heavy for same hp) and requires less regular maintenance.

For a big boat with a big motor, 4 stroke will be a lot cheaper to operate over time.

For a smaller boat, 2 stroke will give much better performance and won't weigh the back end down nearly so much.

If you haven't had both you don't have a dog in the fight. I'm with Doug. I've got 115hrs on mine and zero issues. You can't go wrong with either but after having both I will never go back

If you have a Champ 223 I would put a Merc 300xs on it. I think that boat needs a 300. I use to own one and a 300 pushed at great.

250 sho. Alot of the problems are people caused problems not from the motor malfunctioning. But they did have their problems at first. I know of 9 people that run them that are very good friends and No problems period.

I'd personally go with a 4 stroke Yammy...

Love the smell of a Yammie Two Stroke in the morning , nothing like twisting those RPM's in the afternoon.

250 SHO is hard to beat. The only thing you will miss is the 2 stroke smell. No issues with mine so far and with a 5 year warranty I don't have to worry much. Bought it during their warranty promotion. They may still have it going on.

I own a 250HPDI and I just bought a new boat with a 250 SHO so far I'm happy to have it just put my 7th hour on it.

497# pounds for two stroke OptiMax 225 -- yields 20 percent more miles per gallon and an average of 26 percent greater cruising range than even a competitive 225 hp 4-Stroke-when cruising between 20 and 40 mph. Which translates into better overall fuel economy and fewer stops at the pump.

635 # for the 225 Verado four stroke and almost EXACT gas mileage

Less maintenance required on two stroke , fewer parts, designed for marine power.

More $$$$$$ maintenance for four strokes , more parts, NEVER WAS designed for Marine power - was just a factory work around to meet Federal mandated emissions requirements --

Now you have the REAL story !!!


You can hang more weight on the transom and I suspect a slight loss on top end --


I work on em, too - as a marine mechanic I STILL rate two stroke over fours for reliability -

The ONLY motor really designed as a marine fourstroke from the git go was Suzuki/Honda

Yammy, Bombardier, Mercury fours were as a RESULT of Federal pressure -

Black on back for me ----

Fuel injection is OK as long as motors don't sit much between use and Texas E-10 is making me RICH - E-10 SCRUBS cylinder walls of needed lubrication - best thing for cratered engines since carbon chips and chopper props !!!

Different strokes(so to speak). You're gonna lose a lot of money on a repower. Rebuild the motor if you still got it.

That's entirely dependent on correct prop for your boat, weight distribution and proper trim - both fours and two strokes most efficient WOT is around 5800 to 6000 RPM

And set backs of about six inches will improve ALL boats performance in top end and hole shot -

Mostly its not the motor RPM at shaft that determines hole shot/top end - thats mostly as a result of thrust, slip, clean water delivered at the prop

"I guess that is why I see an sho go up in smoke almost every
Tournament. Gooluck"

Ya right!

No brainer....4 stroke