HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Moonrocks

Damaged engine after 50 hrs. on YZ450FT 05

8 posts in this topic

May have run low on oil, if I had an ounce of sense in my brain, I would have checked before a 63 mile ride with a 70+ MPH blast down a dirt road that caused the bike to stall. After the engine cooled the bike started well but made some banging noises like the piston, rod, or valves were not working correctly. Had briefly over revved the bike (3 sec. or so) and let of the gas, then it died. Started but began to sound odd. Limped it home and after it cooled made louder noises. Please kill me for being stupid or help me because I love this bike. Factory connection suspension, titanium pipe, carbon exhaust , RP3 handle bar stabilizer. ..way fun until now. It is at Reno Motor Sports and they are going to tear it down and tell me what evil deeds I have done very soon. Anyone have a similar experience.

:devil:

Share this post


Link to post
Share on other sites

Well, that really sucks. I would start will taking off the cylinder and head... that should give you an idea of what your looking at. Hopefully it didn't starve for oil too much, or you may have to pull the motor out and do a complete tear down.

Share this post


Link to post
Share on other sites

Thanks all got the good news back from a local and very reputable shop....Damaged cams....rod...cylinder....TOTAL REBUILD. I looked at all the parts to verify. They were kind enough to charge me what I would pay for the parts doing some good shopping on the internet and 450.00 labor. LET ME BE A LESSON FOR ALL IDIOTS (newbies) that came from the 2 stroke camp and were not aware of the 4 stroke sensitivity issues. I only had about 8hrs. on the bike without checking the oil. Some of it may have been prior wear but there is only about 50hrs. on the engine. I can assure you that this $1350.00 mistake will be my last. Unfortunately my last bike was a Honda CR 500 and I was so stoked to ride that had my head up my ass. Thanks for all your replies.

Reno NV

Bonehead

Share this post


Link to post
Share on other sites

That's too bad about youur bike, but I have a suggestion. Go get your bike and pay them for the labor that they have done take it home and go buy a good craftmen set of metric tools and a 3/8 drive torque wrench. Read the manual and rebuild it yourself. you will learn soooo much:prof: and from then on you will know many small problems by learning about how everything works. :thumbsdn: By the way, now would be a good time to replace the timing chain,:devil: even if the shop says its ok. They are only about 15 bucks

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0