VIBRATION IN MOTOR

Check in here and say hi!

Moderators: Redneck_Randy, badmoonrising, lakerunner

Post Reply
Message
Author
MOHAVEMAN1
Posts: 44
Joined: Thu Jun 04, 2015 10:49 am
Location: Lake Mohave Az

VIBRATION IN MOTOR

#1 Post by MOHAVEMAN1 » Wed May 01, 2019 6:01 pm

Hello everyone My buddy just took out his newly purchased 2014 DLX tracker with a 90 hp 4 stroke Merc Motor has 14 hrs on it WOW Boat in excellent condition He just called me and reported boat is vibrating and rail gates vibrating when in gear and at low rpm s Even in Neutral still vibrates so we figured its in motor itself. Steering wheel vibrates also, and plus boat under power like 3000 rpm s pulls to right, boat will not go in straight line any ideas of what going on with this issue????? Thank You all

User avatar
ROLAND
Posts: 4102
Joined: Sat Oct 03, 2009 4:29 am

Re: VIBRATION IN MOTOR

#2 Post by ROLAND » Wed May 01, 2019 10:29 pm

I don't think a little vibration is anything to worry about... I know my boat has just a little bit of vibration when I first bump it into gear.. i mean like barely moving.. as soon as I give it any throttle at all it smoothes out completely.. having said that vibration can be caused by a lot of things... one of the first things to check is the prop... if it's dinged or bent really bad from hitting something, that will cause a lot of vibration.. good luck running it down.
Roland & Jo
2010 Bennington 20 Sfi
Yamaha 75 4 Stroke
Shreveport, Louisiana

User avatar
steve1313
Posts: 270
Joined: Tue Aug 22, 2017 6:33 am

Re: VIBRATION IN MOTOR

#3 Post by steve1313 » Thu May 02, 2019 2:26 am

My first guess would be a bent prop or prop shaft, but if it's doing it even when the boat is in neutral and the prop not turning, it could be the driveshaft. Did your buddy do a test ride before purchasing?
Steve
2017 Sweetwater 2286 WB Tritoon w/ 150HP Yamaha "Serendipity"
Slipped at Lake Anna, Virginia
2018 Tesla Model X

MOHAVEMAN1
Posts: 44
Joined: Thu Jun 04, 2015 10:49 am
Location: Lake Mohave Az

Re: VIBRATION IN MOTOR

#4 Post by MOHAVEMAN1 » Thu May 02, 2019 3:22 am

Thank You Roland and Steve

User avatar
wwind3
Posts: 1418
Joined: Tue Jan 13, 2009 10:03 am
Location: Lake Livingston Tx

Re: VIBRATION IN MOTOR

#5 Post by wwind3 » Thu May 02, 2019 3:23 am

Boat pulling to the right is standard for an improperly trimmed motor...…..it's due to engine torque. Adjust the little trim tab under the cavitation plate. Surprised this is happening....maybe the motor itself does have a problem---even with the low hours---could be some internal damage. A lot of pontoon boats have a harmonic vibration caused by the motor-usually at low rpm's tho'

Definitely check the prop tho. Major vibration culprit. Btw 14 hrs on a five yr old motor seems really low--even for recreational boating---I would question that..
2009 LOWE SS204 25in logs
90 Merc Optimax
Motorguide W55 Wireless
Underskinning
28 GPS

Post Reply