Break In OMC

[spirit5.6]

Gday guys wondering if anyone has some good tips for running in a 225 Venom. New wiseico pistons and all bearings??

[RUDERIOT]

In my opinion there is no one answer for this question.What are the pistons clearanced at? What is the purpose of this motor? What boat is it on?

On my last breakin I jetted the mains up 2 sizes, put the boat in the water, idled out of the no wake zone (15 min.), stood on it, ran it to 7000, let off & hit the enrichner a couple shots. By then it had slowed to 40 m.p.h. or so & I'd stand on it again. Up and down, over & over.for about 45 minutes with a limmit of 7000. I was runing a loose 24'' lightning so as to not load the motor heavily.
I put it on the trailer & let it set overnight. The next night I did the same routine but took the limmit to 7400 & then about 77-7800 the next night without the enrichner shots anymore & 8000 after that with a complete cool down between beatins'. After about 6 of these sessions I put a good 24'' Yamaha on & it pulled it 8550 in 700'
I think the heat cycles have a great deal to do with breakin & that since the motor wasn't built to idle on the hose & putt arround at 3-4000 r.p.m. I was going to break it in like I was going to run it. All I can say is that it works for me.

[Liquid Force]

the actual rev limit/load etc everyone has there own opinions, but almost every one agress if it's a steel bore, hot and cold cycling is very good for it, i.e run it, let it cool down overnight and then run it again.

[Action Frank]

In my opinion there is no one answer for this question.What are the pistons clearanced at? What is the purpose of this motor? What boat is it on?

On my last breakin I jetted the mains up 2 sizes, put the boat in the water, idled out of the no wake zone (15 min.), stood on it, ran it to 7000, let off & hit the enrichner a couple shots. By then it had slowed to 40 m.p.h. or so & I'd stand on it again. Up and down, over & over.for about 45 minutes with a limmit of 7000. I was runing a loose 24'' lightning so as to not load the motor heavily.
I put it on the trailer & let it set overnight. The next night I did the same routine but took the limmit to 7400 & then about 77-7800 the next night without the enrichner shots anymore & 8000 after that with a complete cool down between beatins'. After about 6 of these sessions I put a good 24'' Yamaha on & it pulled it 8550 in 700'
I think the heat cycles have a great deal to do with breakin & that since the motor wasn't built to idle on the hose & putt arround at 3-4000 r.p.m. I was going to break it in like I was going to run it. All I can say is that it works for me.

I used to race r/c nitro buggies and we'd break them in the same way!!:D

[jphii]

Run it like you stole it, then let it sit overnight. Do it again. Good to go.

[spirit5.6]

Thanks guys, have any of you heard of letting it idle in gear on the trailer in water for and hour plus?? I have done this so far.