Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
MallardAssassin, abcdef519013, brprater, FISHNTEX, Ragnar Benson
106798 Registered Users
Top Posters
TexDawg 87565
hopalong 78854
Pilothawk 75989
JDavis7873® 67386
John175 � 66193
FattyMcButterpants 60834
Derek 🐝 59306
Tritonman 57847
LoneStarSon® 54032
SkeeterRonnie 53183
facebook
Forum Stats
106798 Members
61 Forums
867613 Topics
12329221 Posts

Max Online: 36273 @ 01/23/13 02:34 PM
Topic Options
#12575995 - 01/12/18 06:20 PM Amy knowledgeable Yamaha folks on here?
Jobie99 Offline
Pro Angler

Registered: 10/14/03
Posts: 712
Loc: San Antonio, TX
Just had a 100 hour service done on my
225 SHO and my compression readings : 1/180,2/165,3/160,4/165,5/175,6/168. Any opinions on whether those
are good numbers?

Top
#12576045 - 01/12/18 06:56 PM Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99]
SteezMacQueen Online   sleepy
TFF Team Angler

Registered: 11/02/14
Posts: 4821
Loc: Red Oak, Galveston, and Pagosa...
Originally Posted By: Jobie99
Just had a 100 hour service done on my
225 SHO and my compression readings : 1/180,2/165,3/160,4/165,5/175,6/168. Any opinions on whether those
are good numbers?
they are within spec, but fluctuations seem to be maybe carbon buildup. Do you use ring free in the gas?
_________________________
RIP little Nitro




Top
#12576057 - 01/12/18 07:01 PM Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99]
Jobie99 Offline
Pro Angler

Registered: 10/14/03
Posts: 712
Loc: San Antonio, TX
Ring free with fuel stabilizer and biobor on every tank.

Top
#12576185 - 01/12/18 08:41 PM Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99]
SteezMacQueen Online   sleepy
TFF Team Angler

Registered: 11/02/14
Posts: 4821
Loc: Red Oak, Galveston, and Pagosa...
So....was the 100 hour service on the first 100'hours? Or is the motor 500, 600?

If it's the first 100'hours I might be a little nervous, but if it is the same reading and the motor has 600, 700 whatever, is think I would be happy.

I guess what I saying is I'd like them closer if it were mine and a newer motor. But, it is within spec. I think most say within 15% is good and yours are really closer to 11-12%.

Does the motor run smooth? Make good power? Smoke? Make excessive noise?

I think if it runs good and is smooth, I'd worry more about getting bit by fish and hammer down.
_________________________
RIP little Nitro




Top
#12576393 - 01/13/18 05:36 AM Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99]
Jobie99 Offline
Pro Angler

Registered: 10/14/03
Posts: 712
Loc: San Antonio, TX
289 hours. The motor still runs smooth. I have one of the first run SHO's. I got a letter from Yamaha about 9 months ago informing me that I qualify for a free powerhead replacement until 12/31/2018. The letter specifically said it wasn't a recall. I called Yamaha and inquired whether or not the that offer would be good whether or not something happened to my powerhead and the person I talked to said yes as long as it was by the the date on the letter. I said, that is basically like a powerhead warranty and he said pretty much. Is there any reason I wouldn't wait until the end of 2018 and replace the powerhead at no cost?

Top
#12576627 - 01/13/18 09:45 AM Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99]
T Bird Online   content
TFF Celebrity

Registered: 03/07/10
Posts: 5485
Loc: Temple, Texas USA
I'd question the gauge. I don't know of a single shop or technician that have their gauges calibrated periodically.

Top
#12576768 - 01/13/18 11:32 AM Re: Amy knowledgeable Yamaha folks on here? [Re: T Bird]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11327
Loc: Littlefield Tx & Lake A. H. US...
Originally Posted By: T Bird
I'd question the gauge. I don't know of a single shop or technician that have their gauges calibrated periodically.
I would bet that we have a 1000% better compression gauge than the want-to-be mechanics. I would bore scope the cylinders and do a leak down test. Maybe I need to go back to school on my math as well but 10% has always been the allowable difference.
_________________________
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD

Top
#12576871 - 01/13/18 01:15 PM Re: Amy knowledgeable Yamaha folks on here? [Re: gary purdy]
T Bird Online   content
TFF Celebrity

Registered: 03/07/10
Posts: 5485
Loc: Temple, Texas USA
Originally Posted By: gary purdy
Originally Posted By: T Bird
I'd question the gauge. I don't know of a single shop or technician that have their gauges calibrated periodically.
I would bet that we have a 1000% better compression gauge than the want-to-be mechanics. I would bore scope the cylinders and do a leak down test. Maybe I need to go back to school on my math as well but 10% has always been the allowable difference.


When was the last time yours was calibrated? noidea

Top



© 1998-2017 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide