Motor weights and 2/4 stroke?

[The Quadfather]

I guess this is sort of a boat topic?
I can't take it any longer....... looking for a used 25 hp motor. I am not having any luck. I had a couple of questions... can anyone tell me roughly the weight of a 25 hp longshaft tiller? Now I think that it is different if 4 stroke or two stroke, obviously.
What are the benefits of 2 vs. 4 stroke? Is two louder, but not a problem really? What about servicing?

Thanks

[jmay]

Modern 4 stokes are only 10-15lbs heavier than 2 stokes, and the modern 4 stoke is much lighter than a 1970 Johnson or Merc. 2 stokes are noiser, shake a lot, get worse fuel economy and you have to mix oil/gas as oil injection is not offered on most smaller options. However 2 stokes have a much broader power band, and can be run at much higher RPM's with no long term negitive effects. Maintance wize 4 stokes require a oil change and filter every 20hrs or so. 2 Stokes obviously do not but you change a lot more spark plugs. In the last few years the differance between a 4 or 2 stoke maintance wize is nill

[jmay]

I am a boat claims manager and have all the manufacture specs. In 2004 a Merc 9.9 2 stoke weighs 76 lbs dry, the 9.9 4 stroke weights 83lbs

[dilbert]

Any idea what a 1972 9.8 Merc weighs?

[jmay]

1972 Merc 9.8 long shaft 74lbs, short shaft 71lbs

[Firetiger]

Yamaha not making 25 hp 4-stroke so couldn't get weight, but new 15 hp 2-stroke weighs 79 lbs where 15 hp 4-stroke weighs 113 lbs. The owner's manual for my 2004 Yamaha 25 hp long shaft electric start with tiller control lists the weight as 150 lbs.

[cavdad45]

Spent 7 years as a boat rigger in Mercury dealership, so I hope this helps. The 25 hp 2-stroke weighs significantly less than the 4-stroke. The 2-stroke version can be clamped to your transom and for permanent mounting has two small bolt holes that I recommend you use. The 4-stroke requires permanent mounting with 4 1/2" bolts. Most shops will drill those for you if you like using the jig, but I would recommend having them do the whole job.
The 4-stroke is quieter, and more fuel efficient. However, being an insider I would make absolutely sure that it is current with all its recalls. (There were some very serious ones with that motor) The biggest issue was it would not drain the oil back into the crankcase properly leaving oil sheens in the water, which would cause the motor to run out of oil resulting in catastrophic damage. Just take the motor to a dealer and have them verify that the propblem was corrected. Visually inspect it, not just do a serial number check.
As of January 2006, all outboard motors produced and sold in the US are required to be 4-strokes, so if you buy new your choices are limited.
If I were looking for a smaller outboard say 15hp or less I would search out for a used Mercury 2-stroke they are plentiful, easy to maintain, and seemingly bulletproof.
Hope this helps.

[GCB069]

Hi guys i just order a 2006 Mercury 9.9 hp Outboard Motor Short Shaft, 2-Stroke from http://www.smalloutboards.com not many left but i got a good deal and they converted from 9.9 to 15HP. the 9.9 is $1485.00 and the 15 is 1825.00 + 200.00 Shipping


good fishing Glenn

[cavdad45]

Hi guys i just order a 2006 Mercury 9.9 hp Outboard Motor Short Shaft, 2-Stroke from http://www.smalloutboards.com not many left but i got a good deal and they converted from 9.9 to 15HP. the 9.9 is $1485.00 ans the 15 is 1825.00


good fishing Glenn

What a score!!! It was probably one of the last ones manufactured in 2005. The model year on outboards usually starts early-May the previous year.

You got a great motor! Those things have been out for many years and they are so reliable. Because they were so mass produced parts will be available for some time. She's bulletproof.