Repower Mako 17 Merc 90 with 115

makome

Cadet
Joined
Feb 4, 2004
Messages
6
Im looking into repowering my Mako 171 which has a 1990 Merc 90 HP with a new 115 or 125 classic. Does anyone know if the controls, harness, etc are compatible? Also since I'm planning to do the installation myself will Mercury honor the warranty? <br /><br />Dennis in CT
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Repower Mako 17 Merc 90 with 115

Moving to General Outboard
 

radsrh

Petty Officer 1st Class
Joined
Oct 30, 2002
Messages
250
Re: Repower Mako 17 Merc 90 with 115

To the best of my knowledge unless it is a Merc service shop they will not honor the warranty.
 

crazy charlie

Vice Admiral
Joined
May 22, 2003
Messages
5,588
Re: Repower Mako 17 Merc 90 with 115

You will love the way a 115 goes on that boat.I own an 84 171 Mako with a 115 Rude and it goes real sweet!!! Charlie
 

imported_JD__

Petty Officer 1st Class
Joined
Jun 13, 2003
Messages
243
Re: Repower Mako 17 Merc 90 with 115

makome <br />I've owned 2 of the Merc 115's, an '02 & '03.<br />Below 1800 Rpm's they idle on 2 cylinders. I never had a problem with the other 2 cylinders cutting in during throttle-up but they are sometimes quirky going from cruising speed back down to idle. The transition can be rough and jerky for a few seconds because it takes a while for the gas to be used up in the 2 carbs that don't have idle jets. Both of my engines wouldn't idle smoothly unless the engine cowl was almost dead level. When you tilt the engine for transport (depending upon how much), the bottom two carbs purge. The gas/oil mix ended up in my transom well and stayed a greasy mess. I think they are a dependable, sturdy engine but I personally wouldn't buy another for the reasons mentioned.
 
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