Serious Safety Issue on a 2009 Monster 696

[mitt]

Looks like the wrong sprocket maybe.  Does the one on your bike have the shoulder sticking out toward the engine like the one in the diagram?

I am guessing someone tried going down a tooth in the front, and bought the wrong sprocket for an older monster.


mitt

[mikesmithmjs]

Mitt,

I posted photos in the initial thread.  I cant tell because the diagram and my photos are ~180° apart.  I also counted 15 teeth but maybe I'm wrong?

[Slide Panda]

In the photos of the 1st post - the little retainer has totally slid down the output shaft... Is your rear wheel freakish out of alignment, or the adjustment loose? I had one of those retainer plates that was ancient (26k miles) and worn badly it could have slid around on the output shaft... but the chain kept if from doing so, since my rear wheel was straight.

No matter what, on a set up like that - that plate should be centered on the groove of the output sshaft.

[mikesmithmjs]

Yuu,

The rear wheel is quite well centered and I check the chain tension weekly.  I've never had to adjust it either.

Mike

[Slide Panda]

Have you measured both sides? Centered on the axle is just a matter of spacers.. but alignment is a bit different. I wonder if you measured from the center of the axle to the end of the swing arm or other fixed point if you would find that the two measurements, which should be near identical as possible, are not.

[battlecry]

D@mn, Mike.  That is scary.   

You have scratches in the retaining plate by the bolts, indicating perhaps that it walked (vibrated?) itself into an unlocked position.  Didn't think there was enough clearance between the hole and the bolt diameter to allow that to happen.   I'm so glad you caught that before it walked itself off so close to your boot!

[Raux]

there is more to this story

new tires ever?
new sprocket?
used bike?
new chain?
check the rear axle spacers were the installed correctly?

[Slide Panda]

D@mn, Mike.  That is scary.   

You have scratches in the retaining plate by the bolts, indicating perhaps that it walked (vibrated?) itself into an unlocked position.  Didn't think there was enough clearance between the hole and the bolt diameter to allow that to happen.   I'm so glad you caught that before it walked itself off so close to your boot!

If his is like mine... it can't. The holes are not sufficiently large to allow the plate to rotate to a degree where the teeth of the plate are lined up with the grooves of the output shaft.

[mikesmithmjs]

i bought bike with 182 miles used in spring of 09 from dealer.

everything is as it was since then except it was in the shop the week before because it needed a new oxygen sensor.

other than that there is no more unless something happened while it was in the shop?

[Slide Panda]

Well... stuff does work loose due to vibration.. and there's always a chance of human error.

I'm sticking with my alignment theory for now...

[Raux]

bingo

the bike was used, Mitt is probably right.

The original  owner probably put the 14t on, dealer put it back to 15t and put the wrong one on

[mikesmithmjs]

should i get an attorney then?

[Raux]

Talk to Spidey, i think he's a lawyer

need to get all the service records of the bike. etc

[Triple J]

Being an '09, it's still under warrantly, right? If so they should just fix it.

[Turf]

There's no need for a lawyer, ducati should have your back

I'm not buying any of the theories, thinking sometimes shit happens.

seeing as they've used this design for over 20 years I'm not thinking it's a serious safety issue either