motoman breakin yes or no?????????

[apexsledhed]

i hear people saying both ways. if mototune how many miles do you need to do it?

 

[SRXSRULE]

I've broke in 3 the motoman way. I dont run them untill I'm ready to ride them and then I break them in had and fast just liek the website states. The first 20 miles is the most important. When you do this you notice a big difference in the way the sled performed in the first couple miles compared to the sled with about 50 miles on it. Eric

 

[Iceman57]

I follow his procedure as close as possible. Short 5 to 8 second bursts then let engine slow the sled, try not to use the brake. Keep running it that way for about 20 miles or so. I change the oil (not synthetic) 0w30 and filter. I continue to run it hard until I reach about 200 miles and then change the oil and filter again (still no synthetic). I then run that oil until about 1500 miles and that is when I change over to Mobile 1. It works great for me and my vehicles are always the fastest of the same make and model I run against. I'm currently breaking in a 5.7 liter Hemi that way. But hey...... to each his own. This is just my method.

 

[apexsledhed]

have you ever had overheating problems doing this. i actually started breaking it in the motoman way for 11 miles until my temp and check engine light came on so shut it off and let it cool down. everyone that was at the lake decided to leave so i left as well. should i continue with the motoman breakin. thanks

 

[Tork]

I am one of the old school guys (the other 40-60%) that go more by the book.
It is just that I have worked on so much machinery that I believe parts need to shake hands and get to know each other first before they should fist fight.

Motor Trend magazine did an editorial on Motoman methods eh 6-8 months ago. The Detroit auto engineers they interviewed did not out and out bad mouth Motoman but they sure cringed and shook their heads with displeasure.

and it is difficult to prove motoman doesnt work because engines are built so well today that they handle whatever is dished out.

 

[Iceman57]

have you ever had overheating problems doing this. i actually started breaking it in the motoman way for 11 miles until my temp and check engine light came on so shut it off and let it cool down. everyone that was at the lake decided to leave so i left as well. should i continue with the motoman breakin. thanks

The engine light may have come on if there was marginal snow and warmer temps. With a new engine it's going to be tight causing more friction so you want to keep it as cool as you can under the circumstances. When I break-in my sleds I make sure there is plenty of snow to assure the engine stays as cool as possible. If you’re asking if I would continue using his method my answer is YES. FYI I am a frequent visitor at the GM Milford Mi. Proving Grounds and the Ford Romeo Mi. Proving grounds. I discussed this topic with many mechanics and engineers. I have never been told not to follow his method. I also had given a Yamaha Service Manager a copy of motoman's article and he has been recommending his (motoman's) procedure when he has been asked what the best way to break-in the 4 stroke engine is. Again this is my opinion and the method I always use.

 

[supercat]

I really feel some folks read too much netative into the motoman method. I have built and raced my offshore boat engines, for years and very few engines take the punishment these do. I have talked with many engine builders, and have come to my own conclusions about break in. I believe the just of what motoman is saying is keep a load on the engine so the rings are pressurized to the cylinders. I don't think he means pin it and abuse it. I totally agree it is better to keep a load on the engines during break in. Mercury Racing breaks their engines in under load on a dyno. DON'T overheat the motor, DON't hold it wide open for extended rpm's, DO give the engine load. And DEFINITELY change oil early! Like everyone else, my 2 cents.

 

[apexsledhed]

so the motoman way?

 

[mclarenyamaha]

this is innteresting, but in my mind the compression over the pistonrings is constant regardles of what rpm you have, so what is happening when you have higer rpm, the piston is going faster you have more heat in the engine,you are burning more fuel and you have higer hp, but the comprssion is still the same. we have built brand new sleds with turbos and lowerd the compression and still no problem even with low boost. and with wiseco low comp piston and high boost then we had a little oilburning and finnaly the pistons were gone. the connecting pin in the piston brake on one side, so we saved the motor.

 

[SERPAGS]

I will also be following the MOTOMAN way after quite a bit of research, I found that it just flat-out make sense !

IMHO

 

[KnappAttack]

You think drag bike engines get broke in easy? They get broke in on the dyno, 3 easy quick pulls, then its an all out flogging. Mike Knapp#17

 

[Blue Oval]

I've broke in 3 the motoman way. I dont run them untill I'm ready to ride them and then I break them in had and fast just liek the website states. The first 20 miles is the most important. When you do this you notice a big difference in the way the sled performed in the first couple miles compared to the sled with about 50 miles on it. Eric

Just wondering do you have a link to this motoman procedure? Can I find it on this site or can I Google it??? I'm going up to Maine next week with 0 miles on my RTX

 

[SERPAGS]

http://www.mototuneusa.com/break_in_secrets.htm


There you go. Good luck.

 

[Blue Oval]

http://www.mototuneusa.com/break_in_secrets.htm


There you go. Good luck.

Thanks for the link! Very interesting stuff there. So because I did not know about this procedure before I bought my sled and I did like I think most upon first hearing the sound of this machine, I have started it up to load it on the trailer the day I picked it up, and on probably 5 occasions started it up to idle for friends to hear it, maybe for a total of 5 minutes max alltogether. Should I still plan on following his method with short burts and then engine breaking? What speeds are being acheived during these blasts? 65-75?

 

[4Fighter]

Are any of the hard breakin methods relevant to the fact that racing engines, under these circumstances, may be torn-down and re-built in as little as a couple hours of use???

Aside from that, I KNOW my sled has been started and stopped repeatedly before I even got it. This year, I resisted multiple "Listen to this" demos for myself, friends, and family.