Join Date: Sep 2017
Location: Saint Louis Missouri
I know this is an older post, but I have a question about the build/break in process. When you all are putting the top end together do u lube the cylinder, piston side and rings with engine oil. I had a local motorcycle engine builder say DEF NOT. he said after cleaning and right before assembly he uses a clean rag and wipes the cylinder with WD40.
So I understand this post you are saying I should:
1. Warm the engine up (how long for 2006 Raptor 350)
2. After warm up ride it hard
a. Run through 2nd 3rd and 4th with some power
b. Let off the gas in different gears and let the engine slow the bike down
c. Repeat #2 for at least an hour.
3. Change oil after break in ride.
Is that correct?
After honing, wash the cylinder with Dawn soap and water and a good brush till a white paper towel wipes clean. Dry with a heat gun or hair drier. Wipe the cylinder with oil used for the motor. WD40 may not be compatible with all oils. Lube the rod at the crank, wrist pin, rings and piston with the same oil. Some builders think a dry cylinder and rings will seat faster, but I don't like that idea. Start the new motor and check for leaks and shut down ASAP. Let cool down and re-torque the head bolts and check other mounts, cases, etc. Next time it's fired up, be ready to ride aggressively, but don't lug it. Follow the link on the first post of this thread, I've done it for years with 2 and 4 stroke motors. AKA, ride it like you stole it. I always recommend a magnetic drain plug.
Ride it like you stole it...........What if when you steal a bike,, you like to gingerly ride it through the country side and take in the scenery? Lol
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Last edited by Raptor Nation; 03-07-2018 at 03:46 PM.