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Montauk Repower Question
patrickgmiller	#1  Posted on 07/21/11 - 2:07 PM
Member Posts: 1 Comments: 0 Joined: 05/19/11	Seems like a wealth of information on the site, but having trouble finding info on the Yamaha F70LA and how it could do pulling a skier on a classic Montauk. I have a 1986 Montauk and am debating between a Yamaha F70LA and a F90TLR. Mostly using the boat for cruising around and running around the Chesapeake, but would like to be able to pull a skier. Do you think the 70 would have enough power to pull a sub 170lb skier? Thanks
wannabe	#2  Posted on 07/21/11 - 2:25 PM
Member Posts: 287 Comments: 1 Joined: 06/03/09	I have never seen anyone NOT buy a 17 Montauk because it had a 90 hp.
Joe Kriz	#3  Posted on 07/21/11 - 2:35 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	We have an article on "Current Engine Choices and Weights". http://www.whalercentral.com/articles...ticle_id=5 The 2 best choices for HP to Weight: 1. E-Tec 90 @ 320 lbs 2. Yamaha F70 @ 260 lbs Another place to see what motors members have is in the personal page section. Scroll down to the 16/17 models. http://www.whalercentral.com/viewpage...page_id=65 I used to ski behind my 1978 Montauk with an Evinrude 70 hp 2 stroke. Don't know about a 4 stroke...
NJjohnmontauk17	#4  Posted on 07/22/11 - 5:48 AM
Member Personal Page Posts: 126 Comments: 3 Joined: 06/02/11	my kids ski all day long on my '84 Montauk w/ a 75hp Yamaha 2 stroke
msd58	#5  Posted on 07/22/11 - 10:12 AM
Member Personal Page Posts: 115 Comments: 9 Joined: 04/08/06	70 will be fine but 90 will be better. I have a 90 Yamaha on mine moved from 70 Evinrude. Same weight back on the transom but 20 more HP. Even uses the bolt holes left by the 70
highstepper	#6  Posted on 07/26/11 - 8:05 PM
Member Posts: 4 Comments: 1 Joined: 03/23/08	I think the 70 would be a bit anemic if trying to get an adult slalom skier up. I Just repowered my 1984 Montauk with the F90A Suzuki- it is a very good match for the boat. 341 lbs, 2.58:1 lower unit, and a peak rpm of 6300. I completed the 10 hr break in on less than 10 gallons of gas. I was bumping the rev limiter with a 14 x 18 prop and a moderate load, switched to a 14 x 20. This thing gets out of the hole like a 2 stroke, and easily tops 40 mph. Most importantly, at 3500 - 4000 rpm it gets excellent fuel economy. A very good match for the Montauk.
Joe Kriz	#7  Posted on 07/26/11 - 8:12 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	highstepper, Suzuki has the DF90 and the Yamaha has the F90..... What model is the Suzuki F90A ? EDIT: I just found it.... It is the DF90A...... a new model series for this year. Edited by Joe Kriz on 07/26/11 - 8:13 PM
highstepper	#8  Posted on 07/27/11 - 10:47 AM
Member Posts: 4 Comments: 1 Joined: 03/23/08	Joe: I believe it came out in 2009. The new Suzuki 90 is about 70 lbs. lighter than the previous version (410 vs. 341), and thus far has a good track record for reliability according to a Suzuki tech that I trust. By the way, wonderful site.
brinkleyp	#9  Posted on 10/08/11 - 1:46 PM
Member Posts: 3 Comments: 0 Joined: 10/03/11	Patrick- Not sure if you have already repowered, but my F70 Yamaha on my 1973 17' hull has no problem pulling me up on one ski & I'm 180# & usually have my wife & 3 kids in the boat.