Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
ReidGoff, Gary Roberts, Granbry, Gman.1218, Gkirk842
102694 Registered Users
Top Posters
TexDawg 82831
hopalong 74334
Pilothawk 73390
JDavis7873® 67377
FattyMcButterpants 60518
John175 ® 59851
Tritonman 56789
Derek 56400
SkeeterRonnie 52444
LoneStarSon® 52199
facebook
Forum Stats
102694 Members
61 Forums
858493 Topics
11262095 Posts

Max Online: 36273 @ 01/23/13 02:34 PM
Page 1 of 2 1 2 >
Topic Options
#10751639 - 04/07/15 01:33 PM yamaha ox66 150 help needed
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Last Friday my motor stated what I would describe as a tapping sound, can't seam to figure out what's going on. Compression is 118-122 across the board, getting good spark to each plug, I have changed or cleaned every part of the fuel system. The only thing I have found that look out of the ordinary is the o2 sensor was covered in carbon. I soaked it in Yamaha combustion cleaner overnight along with the o2 sensor tube and rod. Nothing has made any difference it still has the same noise. I honestly thought when I heard it the powerhead was about to blow, but I have probably let it idle a hour or so in between changing out parts. It still seams to be running fine just very noisy. I can't find a mechanic locally that can look at it for a few weeks, just thought I would see if anyone else had ideas I could try.
_________________________





https://www.inseinefishing.com field staff

Top
#10751818 - 04/07/15 02:48 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10512
Loc: Littlefield Tx & Lake A. H. US...
Drop the lower and run it.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

Top
#10752317 - 04/07/15 07:04 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Does it in neutral aswell as in gear, could it still be a lower unit issue?
_________________________





https://www.inseinefishing.com field staff

Top
#10752365 - 04/07/15 07:36 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10512
Loc: Littlefield Tx & Lake A. H. US...
Yes the main drive shaft, pinion, forward and reverse gears turn all of the time the motor is running.


Edited by gary purdy (04/07/15 07:37 PM)
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

Top
#10752458 - 04/07/15 08:14 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Ok I had thought it could possibly be the lower but didn't know if might make the noise in neutral. Thanks That gives me something else to try.
_________________________





https://www.inseinefishing.com field staff

Top
#10753195 - 04/08/15 07:08 AM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Tommy Yetts Offline
TFF Team Angler

Registered: 12/14/02
Posts: 3414
Loc: Rockwall, TX USA
Remove lower drain plug from l/u and inspect for metal in lube.
_________________________
Rockwall Marine
Tommy Yetts

www.rockwallmarine.com

Top
#10753229 - 04/08/15 07:29 AM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Headed up to the lake to check the lower unit tomorrow morning, I'm not sure having a bad lower unit is a good thing but that would sure be better off than needing a powerhead.
_________________________





https://www.inseinefishing.com field staff

Top
#10755303 - 04/08/15 10:22 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
JoeFriday Online   content
Pro Angler

Registered: 05/23/13
Posts: 732
Loc: Flower Mound, TX
The lower is not too hard to pull apart as long as you don't have to pull the drive shaft. That looked a little tricky. The hardest part is getting the bearing assembly to release. If you have to pull it apart, I've got manuals and have done it once on my 200 Ox66. Happy to share what I learned.
_________________________
This space for rent

Top
#10755325 - 04/08/15 10:29 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
smooth move Online   content
Pro Angler

Registered: 10/14/12
Posts: 876
Loc: bayou vista,tx
get a shrink and therapy. these things will drive you nuts. it wasn't a very long trip for me.
_________________________
es le bon ton roulet

Top
#10755493 - 04/09/15 02:45 AM Re: yamaha ox66 150 help needed [Re: JoeFriday]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Originally Posted By: JoeFriday
The lower is not too hard to pull apart as long as you don't have to pull the drive shaft. That looked a little tricky. The hardest part is getting the bearing assembly to release. If you have to pull it apart, I've got manuals and have done it once on my 200 Ox66. Happy to share what I learned.



That would be great, if I need to work on the lower unit. At this point I guess I'm hoping that is the problem. It would be way cheaper than the powerhead.
_________________________





https://www.inseinefishing.com field staff

Top
#10756147 - 04/09/15 10:21 AM Re: yamaha ox66 150 help needed [Re: gary purdy]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Originally Posted By: gary purdy
Drop the lower and run it.




Think you were correct sir, the lower unit fluid looks like metallic paint and the motor sounds better with it off. Hard to tell though it's so much louder.
_________________________





https://www.inseinefishing.com field staff

Top
#10757491 - 04/09/15 08:36 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10512
Loc: Littlefield Tx & Lake A. H. US...
Take boat to the lake, trim the mid into the water and start it. The water should muffle the sound enough to hear the motor better. Their were 2 150 Yamy lowers for sale on TFF couple of weeks ago.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

Top
#10757839 - 04/09/15 11:47 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
JoeFriday Online   content
Pro Angler

Registered: 05/23/13
Posts: 732
Loc: Flower Mound, TX
Originally Posted By: Bradshuflin aka hunter'sdad
Originally Posted By: JoeFriday
The lower is not too hard to pull apart as long as you don't have to pull the drive shaft. That looked a little tricky. The hardest part is getting the bearing assembly to release. If you have to pull it apart, I've got manuals and have done it once on my 200 Ox66. Happy to share what I learned.



That would be great, if I need to work on the lower unit. At this point I guess I'm hoping that is the problem. It would be way cheaper than the powerhead.


Sure. Just shoot me a PM if you have to end up going that route.
_________________________
This space for rent

Top
#10757872 - 04/10/15 12:41 AM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Well after looking at it more I must have hit something recently, don't know how I wouldn't have noticed it but the prop shaft is bent, one blade on the prop is bent plus the internal lower unit issues. I called my insurance company and they wanted pics so I sent them the pics. They seam like they are going to cover it. I put the lower in the shop and the mechanic told me without tearing into it that he was almost positive the insurance would total it and buy a replacement lower.
_________________________





https://www.inseinefishing.com field staff

Top
#10764165 - 04/13/15 12:02 PM Re: yamaha ox66 150 help needed [Re: Bradshuflin aka hunter'sdad]
Bradshuflin aka hunter'sdad Online   content
TFF Celebrity

Registered: 10/05/10
Posts: 9099
Loc: Sanger, Tx/ Chatham, La
Has anyone ever had a insurance company say we will pay for new.yamaha lower unit, minus your deductable, minus depreciation for the years in service. And it comes out to them pretty much not paying for jack spit.
_________________________





https://www.inseinefishing.com field staff

Top
Page 1 of 2 1 2 >



© 1998-2016 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide