2014 RMZ250 Need Advice

wwoberg
Posts
740
Joined
11/19/2010
Location
Soddy Daisy, TN US
Edited Date/Time 7/29/2017 6:50am
Piston Failure at 10 hrs. Dang it. Hit the valves, bent the crank, ruined cylinder. So far looks like:

Gaskets
Piston (rings, wrist pin, circlips, etc)
Valves
Crank
Cylinder

Probably around $2K in parts.

What should I do? Fix it? Can you buy whole engines? Part it? Chassis just sitting here? what would you do?


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Turbojez
Posts
2421
Joined
8/5/2015
Location
PL
7/19/2017 2:14am Edited Date/Time 7/19/2017 2:15am
HenryA wrote:
AF build!
This!
Did this bike have 10 hours since new? Anyway, that sucks man, gutted for you.
wwoberg
Posts
740
Joined
11/19/2010
Location
Soddy Daisy, TN US
7/19/2017 3:26am
HenryA wrote:
AF build!
Turbojez wrote:
This!
Did this bike have 10 hours since new? Anyway, that sucks man, gutted for you.
No. 10 hrs since last piston replacement.

The Shop

mxtech1
Posts
1957
Joined
7/21/2011
Location
Galesburg, IL US
7/19/2017 11:49am
Sucks to see this. Average folks can't afford a $2K rebuild on a moments notice. These types of things are what is forcing people out of the sport.

My advice is to bite the bullet and repair the motor. Buy parts over time to help reduce the pain.

You are unlucky in the fact that most engine failures are not this bad and it is uncommon to see a piston break after 10 hours from rebuild.
Acidreamer
Posts
1794
Joined
8/25/2015
Location
Mansfield, OH US
7/19/2017 1:03pm
Rebuild the motor. Will probably cost more for an af conversion. This time use a wiseco piston. Forged is stronger than cast.
adam8781
Posts
670
Joined
12/22/2015
Location
CA
7/19/2017 8:47pm
i dont know if the piston is the blame, normally when you see a rod bend like that its because a piston c clip fell out and the piston pin caught the bottom of the cylinder as it worked it way out


Bruneval
Posts
574
Joined
6/7/2016
Location
Bristol GB
7/19/2017 9:10pm
If it was mine, I'd find a used cylinder on eBay and buy a rod kit, piston and the stainless steel valves and springs. You're going to need valve guides too, the seats re-cut and maybe decked depending on damage. No way of avoiding spending on the parts, but you could do the work yourself (with the exception of the crank) to save on labour costs and you might enjoy the experience of learning how to do it. Don't forget to replace the cam chain too.
wwoberg
Posts
740
Joined
11/19/2010
Location
Soddy Daisy, TN US
7/29/2017 6:12am
I found a wrench rabbit kit for a 2013. It will fit the 2014 correct? just wanted some more verification.
walent215
Posts
2417
Joined
12/6/2014
Location
Ridgecrest, CA US
7/29/2017 6:49am Edited Date/Time 7/29/2017 6:50am
wwoberg wrote:
I found a wrench rabbit kit for a 2013. It will fit the 2014 correct? just wanted some more verification.
Yes, same kit. If you havent purchased already i can get you that kit for $675 shipped. You can text me @ 760-608-1688.

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