rocker59 Posted April 28, 2007 Share Posted April 28, 2007 Good day all, Just got done greasing the driveline and adjusting the valves on my Nero Corsa. Going off memory, I set them at .15mm intake and .25mm exhaust. Then, I happened to look at the decal on the hugger and saw the Guzzi recommendation of .15mm and .20........ So my question to you is, "what's the latest hot setup for valve clearance on the V11 Sport/LeMans ???" I run .10mm intake and .15mm exhaust on my 1996 Sport 1100, which was "World Spec" back at that time, and it runs great!!! This is the first time I've set the valves on this fairly-new-to-me Nero Corsa... Let's hear it !!! Link to comment Share on other sites More sharing options...
pete roper Posted April 28, 2007 Share Posted April 28, 2007 I run .10mm intake and .15mm exhaust on my 1996 Sport 1100, which was "World Spec" back at that time, and it runs great!!! Mike. Same same as your 1100 Sport. 0.1 inlet 0.15 exhaust. or 4 and 6 thou in real language . As you know most of the 1100 motors have 'US' and 'World' spec settings, these were purely noise related. With the *New* motors for the Breva/Griso etc everything has reverted to 4 and 6, presumably because the variable compressability of the kingerlite gaskets has been removed. While I've never heard of anyone burning a valve at 2 and 4 bikes set up that way have been known to stall at traffic lights after a hard flog. Pete Link to comment Share on other sites More sharing options...
rocker59 Posted April 29, 2007 Author Share Posted April 29, 2007 Thanks Pete! I guess I set the Nero a little loose. It does make that nice Guzzi tick-tick-tick sound now! I guess I'll reset it to .10mm / .15mm tomorrow... So what was the deal with them recommending .15 / .20 on the emmisions sticker ??? Link to comment Share on other sites More sharing options...
pete roper Posted April 29, 2007 Share Posted April 29, 2007 So what was the deal with them recommending .15 / .20 on the emmisions sticker ??? Buggered if I know? Pete Link to comment Share on other sites More sharing options...
savagehenry Posted April 29, 2007 Share Posted April 29, 2007 Thanks Pete! I guess I set the Nero a little loose. It does make that nice Guzzi tick-tick-tick sound now! I guess I'll reset it to .10mm / .15mm tomorrow... So what was the deal with them recommending .15 / .20 on the emmisions sticker ??? A tapping tappet is a happy tappet. Insures a complete combustion and exhaust stroke. Just bought a '04 Nero Corse myself, first Guzzi, have had only air cooled twins so far, set enough valves to know this; Looser is ALWAYS better, in this arena... Link to comment Share on other sites More sharing options...
rocker59 Posted April 29, 2007 Author Share Posted April 29, 2007 A tapping tappet is a happy tappet. Insures a complete combustion and exhaust stroke. Just bought a '04 Nero Corse myself, first Guzzi, have had only air cooled twins so far, set enough valves to know this; Looser is ALWAYS better, in this arena... Did you buy the one from Ferracci ??? Link to comment Share on other sites More sharing options...
antonio carroccio Posted April 29, 2007 Share Posted April 29, 2007 I just did it a couple of months ago with Jaap, 2 in , 2.2 out...... Yesterday I was talking about valve at the Moto Guzzi dealer in Amsterdam, he said, 2 in and 2 out. Well, I dunno anymore Link to comment Share on other sites More sharing options...
Admin Jaap Posted April 29, 2007 Share Posted April 29, 2007 Well, the Guzzi gurus in Holland (TLM, Motortoer, etc...) all say 0.10/0.15 is too tight. Those are the factory settings intended for noise/emission standards. My bike runs happily with 0.2/0.22. A tapping tappet is a happy tappet. I'm going to use this one! Too bad it doesn't translate well into Dutch. Link to comment Share on other sites More sharing options...
antonio carroccio Posted April 29, 2007 Share Posted April 29, 2007 My bike runs happily with 0.2/0.22. Mine too Link to comment Share on other sites More sharing options...
rocker59 Posted April 29, 2007 Author Share Posted April 29, 2007 Well, I reset 'em this morning to .10mm / .15mm and went for a 150 mile ride. Bike seems to run just fine. They were really tight (and quiet) when I first pulled the valve covers yesterday. Either they had tightened up a lot since the previous owner had them checked, or the dealer who serviced the bike set 'em to California specs. Either way, the bike actually feels a little different with the valves set at .10mm and .15mm, especially in the 5,000 rpm range... Link to comment Share on other sites More sharing options...
Baldini Posted April 29, 2007 Share Posted April 29, 2007 I use 0.20mm inlet, 0.25mm exhaust (8 & 10 thou). Runs good. KB Link to comment Share on other sites More sharing options...
savagehenry Posted May 6, 2007 Share Posted May 6, 2007 Did you buy the one from Ferracci ??? Yeah, sure did, should be here next week, CAN"T WAIT, will update my New Member file when I truly have it in my possesion...Savagehenry "Real Motorcycles only come in three colors, Black, Blue or Black..." Link to comment Share on other sites More sharing options...
VR6Dave Posted May 8, 2007 Share Posted May 8, 2007 I recently retorqued my heads and set the valves to 0.15/0.20. I noticed that the handle bar seemed to buzz a little more. has anyone else experienced this? About the only other thing I noticed is that my fuel economy went from 35 mpg to about 40 mpg. I think that may have more to the motor breaking than the valves but I could be wrong. Dave Link to comment Share on other sites More sharing options...
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