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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #15 on: March 12, 2025, 09:56:47 AM »
Ouch..yeah someone's been there that shouldn't. Trying to imagine what happened to the rotor..how's the stator look?
2015 Z Force 800 53/Trail EPS
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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #16 on: March 12, 2025, 07:37:23 PM »
The stator looked ok surprisingly. No broken wires or scuffs on the faces even. I really don't see how with the condition of the rotor. The main thing about the stator was that the wire was cut halfway up and feels like it was put back together and wrapped up with a big wad of electrical tape. Maybe they were testing it? I have no idea why they didn't just unplug the thing, lol. So, I already ordered a new one just in case, so I don't have to open the case back up if it is bad. It's been my experience that wires are usually cut for a reason.
« Last Edit: March 12, 2025, 07:39:25 PM by Eddiej82770 »

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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #17 on: March 12, 2025, 07:52:08 PM »
Can you wipe-off and clean-up the rotor and post a pic or two of that inside surface. Hard to tell as dirty as it is and with the RTV on it but I have only seen a scuff pattern one other time like that..which was when one (not a CFM) had a bad main bearing and the movement allowed it to scrape the stator. Post some pics of the stator as well..cleaned-up. And you are sure the mains are in spec...right?
2015 Z Force 800 53/Trail EPS
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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #18 on: March 14, 2025, 12:59:51 AM »
That's actually the pics after I wiped it off. The damage to the rotor is only on the one side. The side in the picture. Also the red stuff doesn't feel like RTV. It's hard like JB Weld. It's like the rotor was beat with a hammer. Maybe trying to get it off? Only thing I can figure. The main and rod bearings were wiped as expected but nothing looked like the crank was hammering around in there. the mains were scuffed below the surface layer and will definitely be replaced, but nothing too extreme, nothing worn completely to the case if that's what you mean. It would have to be worn that much for the crank to do that much damage to the rotor. Half of the inside of the rotor is like this, the other inside half is fine, not even a scratch. The outside looks ok too.

The stator itself looks ok but I'm replacing it anyway because of the cut wire.





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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #19 on: March 14, 2025, 10:37:52 AM »
I should have said lets see some end shots of the stator, not the side. I want to see if there is any sign it was touching the rotor. And on that main bearing, is that a chunk out of the case ?

2015 Z Force 800 53/Trail EPS
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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #20 on: March 14, 2025, 10:53:27 AM »
I'm not at the shop today, but the ends of the stator were fine. As far as the case, I haven't pulled the stator yet but if it is a chunk missing, it doesn't go through to the other side. I agree it does appear to be. I'll assess it when I get the stator out.
« Last Edit: March 14, 2025, 10:55:37 AM by Eddiej82770 »

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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #21 on: March 14, 2025, 11:18:06 AM »
OK, I just looked up a case on ebay and the chunk in question is supposed to be that way. Whew, had me scared there for a minute.


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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #22 on: March 14, 2025, 12:44:06 PM »
That's good news. Otherwise...well, you know.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #23 on: March 18, 2025, 10:43:45 PM »
Well, I didn't get as much done today as I wanted to. I got the crank case bearings pressed out and both sides of the cases cleaned out really well. I pulled out my crank kit and was ready to press in the new bearings, but they sent me rod bearings in the kit instead of crank bearings, so I had to get in touch with the company I bought it from to get me the right bearings sent out. I'm posting some pics of the damaged crank and bearings. They were chewed up pretty bad. Definitely oil starvation.

Since I was at a standstill on the engine, I got a battery installed today and started checking out the electrical system. I got to see the dash display for the first time, and I got a real surprise when I turned the key on. I'll let you see it for yourselves.

That's where I'm at today. Waiting on parts again, lol















« Last Edit: March 18, 2025, 10:47:21 PM by Eddiej82770 »

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Offline desmobob

Re: 2014 basket case 800ex
« Reply #24 on: March 18, 2025, 11:02:59 PM »
Ouch!  It hurts to look at the photos of that crank and bearings.  And at only 352 miles... wowser!
Be safe, be responsible, and have fun!

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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #25 on: March 19, 2025, 10:28:13 AM »
Yeah amazing how fast..or soon some things can come on. Case cleaned-up nice though. Did you pull that case oil screen and clean it? Don't forget the oil cooler...it will be full of trash that will hit the crank first thing. If this were mine it would for sure get all new oil pump parts, cover and relief ball & spring. Wow..can't stop looking at those bearings..F'k..

2015 Z Force 800 53/Trail EPS
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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #26 on: March 22, 2025, 09:29:09 PM »
Yes, pulled the screen and bypass and cleaned them up nice. The screen actually caught a lot of bearing material. Also blew thru the cooler and lines with compressed air and a quart of diesel fuel to flush them real well. Just waiting on parts now.

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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #27 on: March 22, 2025, 09:36:52 PM »
Yes, pulled the screen and bypass and cleaned them up nice. The screen actually caught a lot of bearing material. Also blew thru the cooler and lines with compressed air and a quart of diesel fuel to flush them real well. Just waiting on parts now.
Good. You'd be surprised how many forget to do that...
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

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Offline Eddiej82770

Re: 2014 basket case 800ex
« Reply #28 on: April 14, 2025, 10:38:37 AM »
Hopefully this post can help someone out or clear up any confusion online. When looking for crankshaft bearings, I found that they were sold either red or blue, or 2 reds or 2 blues. Something to make you go hmmmm.

So, I did what anyone would do and researched a little online as to the differences between the red and the blue 
and which one I needed for my application. There was surprisingly little info of the difference and what the difference actually was. Some sites claimed it was a year model thing, some claimed it was a crank run out thing, some claimed it was a different thickness thing. No one claimed to really know the difference and I was pretty confused at this point.

What to do? I searched through my disassembly pics and noticed a blue stripe on a bearing. Ah Ha! that must be it. I need the blue ones. I thought I was pretty smug at this point, so I ordered the blue bearings since you could not just order a kit. Remember they are sold as 1 red, 1 blue, 2 reds, or 2 blues. So I ordered 2 blues.

The bearings came in and I pressed them in. All looks great. I check the manual for the next step in reassembly and low and behold, there it is in black and white. Blue bearing goes on crankcase half B and red bearing goes on crankcase half A.

#@&%^#*$!! If all else fails read the @&#^$% manual, FIRST, I might add. Guess who gets to wait on a red bearing now, lol.

I should have asked you guys. Someone reading this is probably thinking, dumb@ss why didn't you just ask me? lol. Anyway, I hope anyone doing a future search on the internet finds this thread and definitively finds the answer to the red and blue Cfmoto crank bearing differences. See how I phrased that as a search engine tag  ;D, That is all for now.

P.S. do you guys think this tariff thing is going to hurt/delay getting parts for our machines? I notice most of my orders coming from China.
« Last Edit: April 20, 2025, 07:09:17 PM by Eddiej82770 »

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Offline NMKawierider

Re: 2014 basket case 800ex
« Reply #29 on: April 14, 2025, 12:06:01 PM »
I thought is was the same as Kawasaki..as they have three different color doted bearing sets, all with different clearances to a new stock crank. Never thought CFM would have two different crankcases for the same year...and if so why wouldn't they be identical..even if from different lines. Odd. Yeah I'm sure China will flex a bit and try to teach us a lesson. We just have to be tougher..and get through it..together..as we have always done. 
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube