Hard or soft run in?

[dirtflame]

Gents i will be getting me bike in another few days time.
May i have some light on this?

[08hyper]

Run her like you stole her! Aloha Alex

[dirtflame]

Lol agent recommended to run like in rpm
Not more then 6 before first oil and filter change.

[Mr R]

Originally Posted by dirtflame

Gents i will be getting me bike in another few days time.
May i have some light on this?

i've always ridden em in pretty hard, but i always make sure the bike has properly warmed up first and always break them in in the mountains, use alll the gears going up and down the rev range...........and try not to hold full throttle on the rev limiter

[el tardo]

heat cycles are the best for run in. if you dont understand dont ask,lol

[Steve C]

There are going to be a bunch of opinions on this so I'll just toss mine in here for what it's worth. Todays engines are built to much closer tolerances than they use to be so breaking in a motor is not as critical as it was "back in the day". Air cooled motors definitely should be heat cycled as part of the break in process since they change dimensions more than our water cooled cousins. When I got my Yamaha FJ 1200 motor (1349cc) back from Hank Scott he recommended the heat cycling method and also to vary the RPM, no long duration steady speeds. The rings seated perfectly and 6 years later the motor still runs great with minimal oil usage. He also recommended no full throttle or redline blasts until everything was seated in well IIRC, 600 miles was the ballpark number. Enjoy the new ride when it arrives

[dirtflame]

So any guide on what speed to follow?
Shifting gears normally or frequently?

[freezer16801]

I don't think full throttle is bad in the low and midrange once warmed up, the redlining can't be good though.

As for speed, various speeds is the best for the motor as others have stated.

I took it relatively easy for the first 600. Then after that it was on. I don't think you will have to worry about heat cycles. I hit 250 degrees F easy in traffic when new. Now I have to sit in stop and go for an hour in 90 degree heat before I get to 240 or do a warm track day.

I ran through the stock rear BT014 in 1400 miles. So, obviously I didn't take it too easy on the thing.

[st2lemans]

Originally Posted by Mr R

i've always ridden em in pretty hard, but i always make sure the bike has properly warmed up first and always break them in in the mountains, use alll the gears going up and down the rev range...........and try not to hold full throttle on the rev limiter

Yes, lots of hard acceleration and engine braking. Easy to do around here. Avoid constant RPM, even on the highway (if you must use the highway), and change gears often to use them all.

Originally Posted by el tardo

heat cycles are the best for run in. if you dont understand dont ask,lol

Yes, that as well.

Tom

[dirtflame]

Sorry for my ignorance! What is heat cycles?