New Engine Break In Procedure

[zuluwiz]

When i bought my 81 gs1100 i asked the dealer that same question. His advice: break it in the way youre gonna ride it. I did, without getting crazy on it, and never had any engine trouble for about 25k miles, when the clutch started slipping. After putting new plates in it, it ran great for several thousand more miles, till i wrecked it. Don't know what happened to it after that, but the engine was still running while stuck in the side of that d**m Chrysler.

[Jedz123]

I broke in my bikes with high load in varying RPM INCLUDING hard decels. I often go up and down the mountains working the engine up and braking with the engine down. It's really your comfort level on how you want to run the bike. My T120 had 2 miles on it when I bought it... I rode it home via the highway and than spent 3 days going up and down the mountains. On the third day (500/600 miles) I was going to redline. The transmission did go at 20K miles but the engine it's self throws very strong compression numbers even at 46K miles... Bike will be 2 years old on April 27th.

Honestly Norm it's a Yamaha it's going to run good no matter what you do to it!!

Cheers.

[storm 64]

I was able to get out and enjoy the nice weather we had yesterday. I took Larry's advice to "ride it like I stole it". It was reassuring knowing Larry would pay for the speeding ticket if I had gotten one! (You didn't know that did you Larr)😲 Actually, I didn't hammer it to hard, I did run it through the rpm range on several occasions though. After my 240 mile ride, I let the engine cool a little, then I changed the oil (388 miles). I'll change the oil again at 1,000 miles and call it good. 👍

[limeex2]

I agree with Chucks link and Nessim. 3 of my tech's who went on to work with Polaris and a major race team back that up and also mentioned high rpm decels and proper cool downs afterwards.

[mharrington]

I agree with Chucks link and Nessim. 3 of my tech's who went on to work with Polaris and a major race team back that up and also mentioned high rpm decels and proper cool downs afterwards.

Yes Im replying to an older thread. I didn't read the above links but have read the same years/decades ago. The reason for the immediate up and down revs is you have a one time opportunity to seat the rings and that time is right after you start your new engine. The load on the rings forces them into the cylinder surface and seats them immediately. This opportunity is gone when an engine is babied. I grew up being told to drive like your on thin ice for 800 plus miles. So I do a second and third gear romp- not to redline line- then take it home and shut it down.