A mountainbike racers quarantine m900s rebuild thread. what could go wrong...

Started by rsoffar, April 30, 2020, 09:22:33 AM

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rsoffar

hope this is the correct section for this type of thing.

Figured I could start documenting the slow process of someone figuring out how to rebuild their Moto.
Im no mechanic. Im a downhill racer. I wrench on bicycles, same thing right?

Short backstory. Ive had this 900 for 7 years give or take. A friend looped it out back then, we fixed it up but then with the mountainbike racing the Moto just sat and sat and sat and sat. Now, quarantine. Being that I can't get on the slopes seemed like a good time to take on a new project to take all my money.
Bought a Haynes manual, a Ducati manual and went to work.

there's no timeline for this. who knows. forever.

did I mention it was outside all those years? covered for the most part but still. a lot of snow and summers and everything in-between. Based off the amount of rat shit and bones there were some things living in there. Also might notice the yellow writing on the tank. Been impounded for parking on the sidewalk once (its usually inside the gated area but have to move it when they redid the brick on my building haha)

to note: this bike would start and run when I started disassembling. I just figured if I was gonna go in and after sitting for so long Id go all the way into the case and do some engine refinishing.

IMG_7221 copy by rsoffar, on Flickr
'00 M900s

rsoffar

I'm pretty into this currently. Ill be uploading some pictures I've taken along the way so far and do a better job from here.
'00 M900s

rsoffar

tear down.
Id say it went ok. The bike was gross. Like I said, things were living in there.

things had been eating on some of the plastic bits here and there as well. Looks like it mostly left the wires themselves alone but who knows.

IMG_7225 copy by rsoffar, on Flickr


did the tear down outside out front

IMG_7226 by rsoffar, on Flickr

I only have these two stands. Made some little legs for the engine and can see had to get a little creative for holding the bike staple with some strap to the fences around me with nothing overhead.

IMG_7410 by rsoffar, on Flickr

IMG_7413 by rsoffar, on Flickr

then the fun part. we moved it all inside my apt  [evil]

IMG_7576 by rsoffar, on Flickr

'00 M900s

greenohawk69

"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

rsoffar

per standard I got 3 of these 4 nuts off and the 4th one was being a punk and rounded off. After a little more freeze off and some vice grips was able to make progress on it

IMG_7631 by rsoffar, on Flickr

IMG_7650 by rsoffar, on Flickr



pulling the heads was fun. Vertical heads came off easy breezy. the two nuts down behind the oil cooler for the horizontal one though.... yeeeeesh.

IMG_7656 by rsoffar, on Flickr

IMG_7662 by rsoffar, on Flickr

IMG_7663 by rsoffar, on Flickr

one of the lower studs on the horizontal head did come out from the wrong end even after so much freeze off spray. Guess Ill be replacing some cylinder head studs. Threads in the case look fine.

IMG_7660 by rsoffar, on Flickr
'00 M900s

rsoffar

'00 M900s

greenohawk69

Can see them now. You have your work cut out for you with bike being out in the conditions.
"An enlightened people, and an energetic public opinion... will control and enchain the aristocratic spirit of the government." --Thomas Jefferson to Chevalier de Ouis, 1814

There are 4 boxes to be used in the defense of liberty:  Soap, Ballot, Jury and Ammo.  Please use in this order.  -- Ed Howdershelt

rsoffar

cut up a socket to make a tool for the castle nuts on the pulley wheels

IMG_8395 by rsoffar, on Flickr

do they always have red locktite on the washers??

IMG_8401 by rsoffar, on Flickr
'00 M900s

rsoffar

was excited to buy a new impact wrench to tackle the clutch  ;D

IMG_8213 by rsoffar, on Flickr

IMG_8071 by rsoffar, on Flickr

obviously the plates are in not the best shape. can I revive these somehow? or just have to bite the bullet and get a new set?

IMG_8220 copy by rsoffar, on Flickr

IMG_8071 by rsoffar, on Flickr

the clutch pieces themselves cleaned up nicely

IMG_8217 by rsoffar, on Flickr
'00 M900s

rsoffar

bicycles remember...

used an old bicycle crank puller to modify a little for a crankcase puller

IMG_7727 by rsoffar, on Flickr
'00 M900s

Speeddog

Moved this build tread to General.

The red loctite was put on the nut, and got pushed down to the washer.
Blue loctite is more appropriate.

Inspect that harness in excruciating detail to make sure no rodents have compromised it.

That is a top-shelf slipper clutch.
Inspect that spider spring for cracks.
- - - - - Valley Desmo Service - - - - -
Reseda, CA

(951) 640-8908


~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

rsoffar

piston heads came off, cleaned them up with a steam cleaner

IMG_8156 by rsoffar, on Flickr

IMG_8169 by rsoffar, on Flickr

'00 M900s

rsoffar

Quote from: Speeddog on April 30, 2020, 11:20:12 AM
Moved this build tread to General.

The red loctite was put on the nut, and got pushed down to the washer.
Blue loctite is more appropriate.

Inspect that harness in excruciating detail to make sure no rodents have compromised it.

That is a top-shelf slipper clutch.
Inspect that spider spring for cracks.

thanks. Ive actually been crawling the forum for wiring harness threads. Im already this far outside of my comfort zone why not right
'00 M900s

rsoffar

I will admit. Im currently stuck on the primary drive gear. Internet research tells me its a real PIA. Borrowing a hydraulic gear puller to see if I can use that and some heat to do the trick at home. But from reading it sounds like I might shouldn't get my hopes up without the Ducati tool for it so I might end up taking a trip with the case to my local dealer for a little help here.

this was a lot all at once but Ive been working on it for a couple weeks now ha. Don't expect this to be a fast one as I order things I need as I go so sometimes were waiting on the mail.
'00 M900s

rsoffar

Quote from: Speeddog on April 30, 2020, 11:20:12 AM


That is a top-shelf slipper clutch.
Inspect that spider spring for cracks.

this slipper actually came from someone on this board back when the bike was crashed and had the original clutch badly damaged
'00 M900s