Best way to break in a rebuilt engine

skeeterman · 07-31-08, 02:53 AM

Hopefully this week or next week my boat will be ready to pick up.I had to have the motor rebuilt.I was wondering whats the best way to break in a rebuilt motor? Its a 1989 yamaha pro 50.Thanks

mariner · 07-31-08, 04:40 PM

YOU should ask the people who built it for you.
for us it was like so many gallons on a certain rpm then anouther 30 then anouther 30

zooker · 07-31-08, 04:55 PM

was it rebuilt or did they drop on a new power head?? basicly same thing. add mix oil to the gas at 50-1 while lettin the oil injecters continue oiling.. vary the rpm while running from 2500-5500 don't idle alot. first ten hours. mine ran restricted for 12 hours @5200rpm yours may not.. exspect it to haul but when it gets broken..

zooker

skeeterman · 07-31-08, 05:10 PM

Ok zooker you said add oil to the tank even though i have the precision mix working on my motor right ?

zooker · 07-31-08, 05:34 PM

uh yea dats it...

zooker

skeeterman · 07-31-08, 05:40 PM

Thanks i appreciate your help.

BassMaster_17 · 07-31-08, 07:26 PM

Quote:

Originally Posted by skeeterman

Hopefully this week or next week my boat will be ready to pick up.I had to have the motor rebuilt.

UH OHHHHH What Happened????

Captmikestarrett · 07-31-08, 07:34 PM

Extra oil in first two full tanks.. Never run wide open for more than 10 minutes during breakin. And run engine at varius speeds but never to fast in the speed changes. So run it at 26 for ten minutes and then 28 for ten minutes. Feel for roughness and decrease slowly..

It so tempting to just jam the throttle but do not unless you want another rebuild. Go thru the power band slowly each and every time you go out. The better you follow those directions the better your engine will perform and last..

Take your time and that third tank will be your best tank ever.

Capt Mike

skeeterman · 07-31-08, 10:50 PM

Thanks guys for all of yall help

skeeterman · 07-31-08, 10:51 PM

Quote:

Originally Posted by BassMaster_17

UH OHHHHH What Happened????

I had low compression on my bottom cylinder it was 30psi the others were 80,90 psi

1FASTLASER · 08-02-08, 07:02 AM

Hey skeeter buddy. Did you ever get thwe mess taken care of with that a##hole???? As far as break in they have it nailed. Double oil for the first 2 tanks and as stated DO NOT run WOT for any extended length of time. Short bursts are ok and recommended but NO extended running at WOT. Go from idle to speeds slowly and vary your speed ALOT. This breaks the engine in over all rpms and will make her like ZOOK said run like a raped ape and also allows the engine to live ALONG life. AGAIN I want to suggest dumping the auto oiling and did ya or do you have a Water PSI gauge????? That way you can monitor water pressure so you dont have to go through this again. Although Yamaha has one of the best oiling systems on the market they arnt fool proof. The bad thing is 90% of the time when the oil alarm goes off for any brand of outboard its already to late. Gimme a holler bud.

zooker · 08-02-08, 10:53 AM

Quote:

Originally Posted by 1FASTLASER

AGAIN I want to suggest dumping the auto oiling and did ya or do you have a Water PSI gauge????? That way you can monitor water pressure so you dont have to go through this again. Although Yamaha has one of the best oiling systems on the market they arnt fool proof.

thing is laser hammers have computer controled systems on there oil injection. remove the oil injection and it shuts the moter down to 2/3 throttle MAX rpm.. the infamus black box so to speak. the point here is it is computer controled and the chips are either yamaha or the mother company mitsubitshi.according to yammaha moto usa rep 99.9% of all yamahas will never have a computer injection problem. which means off the hook reliablity since there is like 130 million yamaha moters in operation world wide..the only other company approachin this number is bomb-omc-

remember when my 03 moter went poof. it was a wrist pin in the #2 hole.the moter had 1158 hours on it using either hammer lube or merc's quick silver oil.with absolutely no injection problems though the hammer ate thru the thinner quick silver faster. i'll still use it..

zooker

BassMaster_17 · 08-02-08, 12:12 PM

Wow all this expensive talk abt motors doing this and that, i think its time for me to sell the skeeter and go back to electric only. Seems like its not worth 30 hrs of maintenance for 4-5 hrs of using it and worry of a motor blowing at any min for no reason. Heck i don't know if my 89 merc even has a oil alarm and from all the research i have done unless its mid 90's or newer auto oilers are iffy at best. Why cant they make them as durable & as maintenance free as a Car or Truck Motor. Seems to me if you not running a factory boat that they do all the upkeep on its not worth it. So If ya know of anyone wanting a F-80 Strada with a 70 merc LMK, i only got to take it out once anyway in 6 weeks so its not worth the hassle or $$ to keep it.

zooker · 08-02-08, 02:33 PM

bassmaster 17
by defination a boat is a hole in the water you thru money thru..the biggest part of that hole being the moter..

any one care to disagree with me??

zooker

boater · 08-02-08, 09:01 PM

B.O.A.T. Break Out Another Thousand

BassMaster_17 · 08-02-08, 11:32 PM

Quote:

Originally Posted by zooker

bassmaster 17
by defination a boat is a hole in the water you thru money thru..the biggest part of that hole being the moter..zooker

Only if its gas powered, only thing my electric only boats cost me was 15$ a year for registration & $15 a year for batteries when averaged out. But this was the clincher

Quote:

Originally Posted by zooker

bassmaster 17
by defination a boat is a hole in the water you thru money thru..the biggest part of that hole being the moter..zooker

the skeeter is officially for sale going in the paper monday!! Tore my Knee up today also so my fishing is DONE for a year at least

.

1FASTLASER · 08-03-08, 05:44 AM

WOA!!!! HOLD da boat Bassmaster. Please dont make the mistake of selling your boat. Number 1 its paid for right. It dont cost to sit there. Number 2 you gotta remeber this forum board reaches thousands and thousands of people. Its not like this incident or othwers like it are from the same town. SO SORRY you tore your knee but here is a quick story............I had knee surgery 4 years ago and the only piece of mind that I had when I was able to start getting around was none other than my boat. Reconsider your sale of your baby ESPECIALLY since you have done such a fine job on getting her back to snuff.

skeeterman · 08-03-08, 11:50 PM

1Fastlaser i finally got him behind me.

Bassmaster i have the same exact boat you have but with a yamaha.At one time i wanted to just give up and sell the boat.But luckly my son had a great time fishing on it when it was running.And he would and still does ask when are we going fishing again ? That alone made me stick with it and battle through the problems.The only thing i hate is this jerk mechanic that was so called repairing my boat.Really made everything a nightmare.Now my son will be going back to school and im now working on the weekends. So our fishing days together really have been cut short.I will be working from 7am -7:30 pm fri,sat,sun.And off for the rest of the week. Great for me but my son will miss out.But we will have a holiday in there some thats when are going to go enjoy ourselves to the fullest

Bottom line bassmaster keep the boat.If you sell it you will pretty much regret it later on in life.Especially the progress you have made with it so far.

07-31-08, 02:53 AM	#1
skeeterman BassFishin.Com Active Member Join Date: Mar 2008 Location: hopkins sc Posts: 122	Best way to break in a rebuilt engine Hopefully this week or next week my boat will be ready to pick up.I had to have the motor rebuilt.I was wondering whats the best way to break in a rebuilt motor? Its a 1989 yamaha pro 50.Thanks

07-31-08, 04:55 PM	#3
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	was it rebuilt or did they drop on a new power head?? basicly same thing. add mix oil to the gas at 50-1 while lettin the oil injecters continue oiling.. vary the rpm while running from 2500-5500 don't idle alot. first ten hours. mine ran restricted for 12 hours @5200rpm yours may not.. exspect it to haul but when it gets broken.. zooker __________________ the godfather.. aml in remission since 7-20-09

07-31-08, 05:34 PM	#5
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	uh yea dats it... zooker __________________ the godfather.. aml in remission since 7-20-09

07-31-08, 07:34 PM	#8
Captmikestarrett BassFishin.Com Super Veteran Join Date: May 2006 Location: Accokeek MD Posts: 3,315	Extra oil in first two full tanks.. Never run wide open for more than 10 minutes during breakin. And run engine at varius speeds but never to fast in the speed changes. So run it at 26 for ten minutes and then 28 for ten minutes. Feel for roughness and decrease slowly.. It so tempting to just jam the throttle but do not unless you want another rebuild. Go thru the power band slowly each and every time you go out. The better you follow those directions the better your engine will perform and last.. Take your time and that third tank will be your best tank ever. Capt Mike __________________ Capt Mike Starrett light tackle guide Potomac River http://www.indianheadcharters.com

08-02-08, 07:02 AM	#11
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	Hey skeeter buddy. Did you ever get thwe mess taken care of with that a##hole???? As far as break in they have it nailed. Double oil for the first 2 tanks and as stated DO NOT run WOT for any extended length of time. Short bursts are ok and recommended but NO extended running at WOT. Go from idle to speeds slowly and vary your speed ALOT. This breaks the engine in over all rpms and will make her like ZOOK said run like a raped ape and also allows the engine to live ALONG life. AGAIN I want to suggest dumping the auto oiling and did ya or do you have a Water PSI gauge????? That way you can monitor water pressure so you dont have to go through this again. Although Yamaha has one of the best oiling systems on the market they arnt fool proof. The bad thing is 90% of the time when the oil alarm goes off for any brand of outboard its already to late. Gimme a holler bud. __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

07-31-08, 04:40 PM	#2
mariner BassFishin.Com Veteran Member Join Date: Jun 2008 Location: trenton ga Posts: 501	YOU should ask the people who built it for you. for us it was like so many gallons on a certain rpm then anouther 30 then anouther 30 __________________ ¿ <*(((>{

07-31-08, 05:10 PM	#4
skeeterman BassFishin.Com Active Member Join Date: Mar 2008 Location: hopkins sc Posts: 122	Ok zooker you said add oil to the tank even though i have the precision mix working on my motor right ?

07-31-08, 05:40 PM	#6
skeeterman BassFishin.Com Active Member Join Date: Mar 2008 Location: hopkins sc Posts: 122	Thanks i appreciate your help.

07-31-08, 10:50 PM	#9
skeeterman BassFishin.Com Active Member Join Date: Mar 2008 Location: hopkins sc Posts: 122	Thanks guys for all of yall help

08-02-08, 12:12 PM	#13
BassMaster_17 BassFishin.Com Member Join Date: Jul 2008 Posts: 43	Wow all this expensive talk abt motors doing this and that, i think its time for me to sell the skeeter and go back to electric only. Seems like its not worth 30 hrs of maintenance for 4-5 hrs of using it and worry of a motor blowing at any min for no reason. Heck i don't know if my 89 merc even has a oil alarm and from all the research i have done unless its mid 90's or newer auto oilers are iffy at best. Why cant they make them as durable & as maintenance free as a Car or Truck Motor. Seems to me if you not running a factory boat that they do all the upkeep on its not worth it. So If ya know of anyone wanting a F-80 Strada with a 70 merc LMK, i only got to take it out once anyway in 6 weeks so its not worth the hassle or $$ to keep it.

08-02-08, 02:33 PM	#14
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	bassmaster 17 by defination a boat is a hole in the water you thru money thru..the biggest part of that hole being the moter.. any one care to disagree with me?? zooker __________________ the godfather.. aml in remission since 7-20-09

08-02-08, 09:01 PM	#15
boater BassFishin.Com Active Member Join Date: May 2006 Location: O'Fallon Missouri Posts: 283	B.O.A.T. Break Out Another Thousand

08-03-08, 05:44 AM	#17
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	WOA!!!! HOLD da boat Bassmaster. Please dont make the mistake of selling your boat. Number 1 its paid for right. It dont cost to sit there. Number 2 you gotta remeber this forum board reaches thousands and thousands of people. Its not like this incident or othwers like it are from the same town. SO SORRY you tore your knee but here is a quick story............I had knee surgery 4 years ago and the only piece of mind that I had when I was able to start getting around was none other than my boat. Reconsider your sale of your baby ESPECIALLY since you have done such a fine job on getting her back to snuff. __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

08-03-08, 11:50 PM	#18
skeeterman BassFishin.Com Active Member Join Date: Mar 2008 Location: hopkins sc Posts: 122	1Fastlaser i finally got him behind me. Bassmaster i have the same exact boat you have but with a yamaha.At one time i wanted to just give up and sell the boat.But luckly my son had a great time fishing on it when it was running.And he would and still does ask when are we going fishing again ? That alone made me stick with it and battle through the problems.The only thing i hate is this jerk mechanic that was so called repairing my boat.Really made everything a nightmare.Now my son will be going back to school and im now working on the weekends. So our fishing days together really have been cut short.I will be working from 7am -7:30 pm fri,sat,sun.And off for the rest of the week. Great for me but my son will miss out.But we will have a holiday in there some thats when are going to go enjoy ourselves to the fullest Bottom line bassmaster keep the boat.If you sell it you will pretty much regret it later on in life.Especially the progress you have made with it so far.

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