Rebuilding a Seized 2011 Yamaha YZ450F Motor - [Part 1/4 - I Seized It]

A few weeks ago I destroyed the motor in my practice motocross bike. Follow along as I troubleshoot the problem and get the bike back on the track!
Insta: @HeresDave & @MysteryMoto
www.MysteryMoto.com
www.HeresDave.com
#YZ450F #yamaha #motorycle

[@Ryan.fromWA]

Hey man, just wanted to say thanks for posting this. I lost a drain bolt on my wr450 and am getting ready to tear it apart for the first time and the service manual diagrams look extremely daunting. Your video will definitely be a big help. Wish me luck, and any advice for me will be happily accepted!

[@STIZEN9]

i had a 2008 yz450 that had a hard time going into neutral, it was a hassle to get it into neutral. when running, it also made alot of mechanical noise. like you could hear the internals of the engine clanking around , it was noisy. does the 2011 have these issues?

[@robertreyes6613]

Should have bought a pro-x rod then ship it to ken o’connor racing for a rod replacement it’s worth the time and money

[@chadcovey1107]

Hey man, I’m about to start a Rmx450z rebuild but my main question…. How can I get it to TDC (top dead center) if my kick start is frozen? I’m not understanding how guys are doing it. How’s did you do it?! Thanks bro!!!!

[@antonhedberg4794]

your spark plug was so white that i would suspect that the bike was running lean at somepoint and lean mixture=higer engine temp

[@Kdjoao]

How can we be sure it doesnt overheat again? Im not that rich so cant afford another new cranks.

[@zirojalef3334]

Lleva 1 solo litro de aceite?? Y cuál el el mejor?

[@chem6269]

Seen a friend's 13' 450 skip time twice and just stalled it where the piston and valves did not hit. I wonder if he had the same problem with his crank/ Still have your bike?

[@MrHeresDave]

Hey there! I still have the bike. Once I got the crankshaft swapped out, everything went back together smoothly. Does your buddy still have their bike?

[@chem6269]

@@MrHeresDave yes he does, he put a gytr head, cams and big bore cylinder. Not a huge fan of the big bore but I have a 09 and love it like it is new. I seen a new perspective on your video that a lot of people with 10'-13' would probably have the same problem.