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Discussion Starter #1
Picked up my 959 about 4 weeks ago, thoroughly enjoyed the rides i got out of it before it refused to start, Ducati came and picked up, they have had it 3 weeks now trying to find the issue, I have called them every other day during this time and every time they tell me they cannot find the issue, finally today they have come back telling me that there is a defect in the cam which is stopping the decompressor starting aid from kicking in.

The thing is the bike has done 500 miles and now has an engine thats been in bits and rebuilt. Do i have any rights to tell to keep the bike and give me my money back? OR does this even sound likely as the issue? I've searched this on many 959 forums and nobody else seems to have had the same issue.

Any help appreciated
 

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This would be the very first I've heard of this issue. It sounds like bullsh!t to me. "stopping the decompressor starting aid from kicking in" can you define this better? the engine has desmodromic valving, which means the valves are forced open and closed via 2 methods at the same time which eliminates lash from a high revving engine. I can't think of what your statement would mean because it's all mechanical... scratching my head...
unless the engine was not put together properly and a part was forgotten...?


EDIT:


"refused to start" - you said... - does it turn over? does it sound off while turning?
 

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Watch this video explaining auto decompression.

https://youtu.be/dsRs_AwDzqY

If they are just changing cams it is pretty much what gets done during a valve adjustment. Although a pain in the ***, it is not something that should cause you to fall out of love with your Pain, she is just getting a little massage, not gang banged by a reggae band. ;)

t_bare
 
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Discussion Starter #5
Quick update, I have the bike back and requested to see the camshaft.

It did indeed have a defect, the sot for the decompression aid to move around in was rough and uneven causing it to get stuck.

Bike has been valeted and I've got 50% off my next two services, is that worth being without my bike for 5 weeks of summer... probably not, but better than nothing.
 

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Sounds fare, you can enjoy it now :)
 
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