1. Use the full 4 digit year for everything you are asking your question about. Example: 1962, 1988, 2000, 2011
2. Include the correct name of your Whaler model. Example: Montauk 17, Montauk 170, Outrage 26, Outrage 260
3. Include the length when necessary. Example: 16, 17, 18, 20, 22
4. Do not post your email address anywhere on this site as it is already in your user profile.

New 4s Merc 90?
SC Joe	#1  Posted on 07/20/08 - 5:28 AM
Member Posts: 19 Comments: 0 Joined: 07/01/08	I plan to purchase a new whaler, but am not new to boating. I curently have a Yamaha F150 on a boat I am selling, amd am looking at a Whaler Montauk 170 with the 90 Merc 4s. What do y'all think of this motor? I understand the new (> '06 models) are a Merc design and no longer a Yamaha powerhead. Have you > '06 owners had any problems? I read on here some issues with shifting into gear, or that is was hard to get in gear, also some rattling isues. That was on older (<06)4s mercs; has that been fixed? Andy thing to look at or take notice of during a sea trial? Thanks!
Bob Kemmler JR	#2  Posted on 07/20/08 - 9:19 PM
Member Project Albums Posts: 269 Comments: 7 Joined: 10/10/05	They seem to be a VERY strong and fuel efficient 90 hp motor. I have heard nothing bad about them. That in itself is rare for a newly released motor. On the hunt for a classic 19 or 21 Whaler
Erik Selis	#3  Posted on 07/21/08 - 1:08 AM
Member Personal Page Project Albums Posts: 71 Comments: 9 Joined: 10/12/05	My buddy, Kees, has one of these engines on his 2007 Montauk. It is a very powerful, fuel efficient engine. Here in Europe these exact same engines are rated 100-hp so there is plenty of power available. http://i25.photobucket.com/albums/c86...5Large.jpg He did have some trouble in the very beginning with a power pack that needed to be replaced under warranty but other than that he's very pleased with it. Erik
SC Joe	#4  Posted on 07/21/08 - 6:41 PM
Member Posts: 19 Comments: 0 Joined: 07/01/08	Interesting! I wonder the difference is between the 90 and 115?
souweine	#5  Posted on 07/21/08 - 6:55 PM
Member Personal Page Posts: 85 Comments: 0 Joined: 02/27/07	I have a very late 2005 version of this motor. It was one of the first with fuel injection. I don't know this for sure, but I think that the yamaha heads were carbed motors with merc carbs, and the efi versions that followed were all merc parts. So far I love this motor. It is so quiet, fuel efficient, and powerful. I used half the gas that my father in laws bayliner did over the 4th.... at 40 mph I can still talk to my passengers.... I have two minor issues, both are very minor. First is that at just above idle while in gear, it makes a noise that is annoying. I just either bump up or down the rpms. The second is that at idle in gear it resonates and my rails vibrate (that isn't really a motor problem). Besides those things, yo ucan't beat the motor. You won't regret it. Joshua 1988 Revenge 22WT