Posts
41
Joined
5/28/2018
Location
Grand Rapids, MI
US
Fantasy
3387th
Edited Date/Time
2/5/2019 10:41am
Hey everyone,
Im looking to rebuild my 2015 YZ450F. It currently runs great but has around 100 hours on the motor. Im thinking of just doing the timing chain and top end. This will be my first time tearing down a 4 stroke motor myself. Im fairly good with a wrench and have all the tools just have not done this before. Just wondering if anyone has links to some good videos, guides, tips on when it comes to doing a top end rebuild.
Thanks!
Im looking to rebuild my 2015 YZ450F. It currently runs great but has around 100 hours on the motor. Im thinking of just doing the timing chain and top end. This will be my first time tearing down a 4 stroke motor myself. Im fairly good with a wrench and have all the tools just have not done this before. Just wondering if anyone has links to some good videos, guides, tips on when it comes to doing a top end rebuild.
Thanks!
The small end WILL break thru the oil hole.
Had it happen at 75 hours.
The 2019 rod doesn’t have oil holes in the pin end.
The ‘15 rod was supposed to be worse than later years as well.
Had to part ours out after it sawed the motor in half.
KC
The Shop
I will say BUY THE RIGHT TOOLS for the job if you are doing it yourself. Yes, tools are expensive (at least some) but trust me, it will save you money on having to buy more parts because of that one bearing you smashed in with a socket and hammer.
All you should need is a small propane torch, flywheel puller, clutch holder tool or impact, bearing press and puller tools, and a torque wrench. Some things to make life easier would be a pen magnet, circlip pliers and whatever else you want.
Good luck!
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