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Desmo (Read 72 times)

klx650sm2002 Serious Thumper Offline The more I learn the less I know. Posts: 2041 Cumbria,England Gender:	Desmo 10/27/10 at 03:54:35 Can't read the writeing Does any body know how to adjust the clearances on one of these. Clive W
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mpescatori Serious Thumper Offline Romanum Thumperium Cavalco, yeaaah !!! Posts: 3547 Rome, Italy Gender:	Re: Desmo Reply #1 - 10/27/10 at 04:26:29 The writing is in Hindustani (Hindi), you might try Google translator (but you might need an OCR to copy&paste the Hindi text) As for the clearances, you need to replace the itsy "bowls" at the end of the finger pushrods (them thingies that look loke miniature dog bowls)
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rokrover

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torkenstein

Posts: 147
SoCal

Re: Desmo
Reply #2 - 10/27/10 at 04:31:56

Yeah, a real PITA. You have to fit shims under the opening and closing rockers and usually need to grind the next larger size down to suit. Closing clearance is zero so the valve is held snug (but not too tight) on the seat when cold. The opening shim is a cap on top of the valve stem and closing is a collar held by circlips. The upper rockers have to be removed to make changes; all very fiddly and time consuming. I used to have a diamond lap stone to hand finish the shims. There's no advantage of Desmo valve operation in the real world and this is more Ducati's sales signature. Back in the day when valve springs were weaker Ducati felt this was a good solution to prevent float.

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klx650sm2002 Serious Thumper Offline The more I learn the less I know. Posts: 2041 Cumbria,England Gender:	Re: Desmo Reply #3 - 10/27/10 at 12:04:09 Thanks guys it is much clearer now. Clive W
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Phelonius Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1897	Re: Desmo Reply #4 - 10/27/10 at 17:01:10 It is a complicated solution to a simple problem. Phelonius
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Oldfeller--FSO Serious Thumper ModSquad Offline Hobby is now "concentrated neuropany" Posts: 12638 Fayetteville, NC Gender:	Re: Desmo Reply #5 - 10/27/10 at 17:56:56 A desmo engine has no red line based on valve control issues. Float isn't possible at any rpm. They rev, lordy do they rev
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