Now I remember there was suppose to be a correct way of breaking in an raptor engine when it is brand new.

Do you still have to break in the engine for the yfz 450 as well?

I can't wait to taker her out for her first run! Whooohooo!!!

 

Yes you still have to do the break in . Im not sure but I would do the same break in period time as the raptor. or better yet look at the owners manual and it should tell you how to break it in. I ride my bikes hard for break in though.

 

Good luck, I hope your new baby doesn't **** all over you.

 

Break it in how ever the hell you want to. I rode mine hard the since the first day i have had it and haven't had a problem.

 

Same here. I rode it soft for about 2 hours, then rode the SHIAT out of it.


When you throttle the YFZ, the seat is the last thing on your mind!

 

rode soft 2 hours?

i rode my ds when it was brand new for 3-4 full gas tanks like the company said

2 hours?!

 

Kudos on your new purchase, man. I know you will enjoy it. Just FYI I rode mine hard when I was breaking it in. Havent had a problem yet.

JB

 

one thing you have to remember, is warm up the engine properly, then ride it like your gonna ride it. If you want to seat the piston rings fully against the cylinder wall, the engine should be able to rev up with a load(acc. in gear, etc.) if you follow the owners manual, the piston rings wont seat properly with the cylinder wall, and you will get a little blow by, and not the fullest compression you can get.

 

if you warm up the engine to operating temp before the first ride, you should ride it like your goin to ride it, to allow the piston rings to seat properly. for this to happen, the engine has to be under a load while in the RPM range, so the piston rings will seat properly after the crosshatched pattern on the cylinder wall is worn off, if not, then you might get some blow by from the piston rings, and you wont have the best engine performance.

 

CONGRATS,I should have mine in a few days.Can't wait to start putting all of my new parts on it.....