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Jan 23rd, 2013
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Amy knowledgeable Yamaha folks on here? #12575995
01/13/18 12:20 AM
01/13/18 12:20 AM
Joined: Oct 2003
Posts: 790
San Antonio, TX
J
Jobie99 Offline OP
Pro Angler
Jobie99  Offline OP
Pro Angler
J

Joined: Oct 2003
Posts: 790
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?

Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12576045
01/13/18 12:56 AM
01/13/18 12:56 AM
Joined: Nov 2014
Posts: 6,844
Red Oak, Galveston, and Pagosa...
S
SteezMacQueen Offline
TFF Celebrity
SteezMacQueen  Offline
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S

Joined: Nov 2014
Posts: 6,844
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?


Eat. Sleep. Fish.
Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12576057
01/13/18 01:01 AM
01/13/18 01:01 AM
Joined: Oct 2003
Posts: 790
San Antonio, TX
J
Jobie99 Offline OP
Pro Angler
Jobie99  Offline OP
Pro Angler
J

Joined: Oct 2003
Posts: 790
San Antonio, TX
Ring free with fuel stabilizer and biobor on every tank.

Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12576185
01/13/18 02:41 AM
01/13/18 02:41 AM
Joined: Nov 2014
Posts: 6,844
Red Oak, Galveston, and Pagosa...
S
SteezMacQueen Offline
TFF Celebrity
SteezMacQueen  Offline
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S

Joined: Nov 2014
Posts: 6,844
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.


Eat. Sleep. Fish.
Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12576393
01/13/18 11:36 AM
01/13/18 11:36 AM
Joined: Oct 2003
Posts: 790
San Antonio, TX
J
Jobie99 Offline OP
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Jobie99  Offline OP
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J

Joined: Oct 2003
Posts: 790
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?

Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12576627
01/13/18 03:45 PM
01/13/18 03:45 PM
Joined: Mar 2010
Posts: 7,265
Temple, TX.
T
T Bird Offline
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T Bird  Offline
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Joined: Mar 2010
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Temple, TX.
I'd question the gauge. I don't know of a single shop or technician that have their gauges calibrated periodically.



Re: Amy knowledgeable Yamaha folks on here? [Re: T Bird] #12576768
01/13/18 05:32 PM
01/13/18 05:32 PM
Joined: May 2003
Posts: 11,510
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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gary purdy  Offline
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Posts: 11,510
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
Re: Amy knowledgeable Yamaha folks on here? [Re: gary purdy] #12576871
01/13/18 07:15 PM
01/13/18 07:15 PM
Joined: Mar 2010
Posts: 7,265
Temple, TX.
T
T Bird Offline
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Joined: Mar 2010
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Temple, TX.
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



Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12594589
01/25/18 04:14 AM
01/25/18 04:14 AM
Joined: Feb 2006
Posts: 136
Hemphill, Tx
Glenn54 Offline
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Glenn54  Offline
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Joined: Feb 2006
Posts: 136
Hemphill, Tx
I would do it sooner rather than later. The new SHO motors are hard to find. But I don't know about power heads/parts. I would call a couple of shops near you to find out if the parts are available. Also, if you blow up your motor, do you think they will still off the free power head?

Originally Posted By: Jobie99
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?


Glenn
Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12594601
01/25/18 04:23 AM
01/25/18 04:23 AM
Joined: Apr 2015
Posts: 1,684
Grand Prairie Tx
Curtbass Offline
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Curtbass  Offline
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Joined: Apr 2015
Posts: 1,684
Grand Prairie Tx
I'd get that PH now. Never know what could change between now & then. Won't have to worry about it failing( reason for PH replacements).


92' ChampioN 201DCR Elite
13' Yamaha250SHO
Re: Amy knowledgeable Yamaha folks on here? [Re: Jobie99] #12595958
01/26/18 03:51 AM
01/26/18 03:51 AM
Joined: Nov 2002
Posts: 3,770
Yantis, TX
Gamblinman Offline
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Joined: Nov 2002
Posts: 3,770
Yantis, TX
Have a leak down test performed. That will tell you more about the condition of your powerhead.

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