shims??

[RobertWichert]

I suppose these ULTRA high performance bikes could NEVER use hydraulics. No room, la la la. Robert P. Wichert P.Eng LEED AP +1 916 966 9060 FAX +1 916 966 9068 ===============================================

On 3/18/2011 3:33 AM, spike55_bmw wrote: > > I agree with Jud. In a perfect world, where you could 100% count on > the factory to have every valve set at the max clearance when you > receive the bike, you could probably count on 10,000 miles before > needing to re-shim but the best practice would be to check the > clearances early on just to make sure that you have a good starting > point (max clearance). > > After the first time, and if there is enough gap-shrinkage to allow > you re-establish that max clearance in all 4 valves again, I'd feel > comfortable going 10,000 miles before checking again. Again, you see > the fastest gap shrinkage (wear of the valve/seat) during those first > 1,000-3,000 miles and as wear continues it assumes an asymptotic curve > until valve/seat replacement or failure. > > With me, I put 6,000-7,000 miles on each year so I check them annually > and sometimes I can slide a thinner shim in and sometime not and it > might only be for one valve. > > Don R100, A6F > > --- In DSN_KLR650@yahoogroups.com > , "Jud" wrote: > > > > I think the factory recommendation to wait 10,000 miles before > checking is bad advice. The old recommendation was to check them at > 500-1000 mi. and then every 6000 after that. When the '08s first came > out, a lot of KLR owners, doubting Thomases that they are, went ahead > and checked their valves at 600-1000 miles, just as if it was an older > KLR. Just like the pre-08s, a significant number were found to have > valves out of spec. > > > > In addition to catching valve that are out of spec from the factory, > checking them early gives two more advantages. 1) You can set tthem to > the top of the range, to give the maximum time before an adjustment is > needed, and 2) you will know what your clearances are and what shims > you have in there (write it down somewhere), so that you can make an > informed guess as to what shims to have on hand the next time. > > > > Of course, if you wait 35,000 miles for your next valve check, as I > did, you will have lost your notes, but you will learn for yourself > that once bedded in, your valve clearances will be quite stable for a > long time. > > > > --- In DSN_KLR650@yahoogroups.com > , mark ward wrote: > > > > > > That gives me an idea on how long before RE-opening to recheck them. > > > 2 were close to min and 2 were not close enough so I'll wait > untill 5000 after last check. > > > > > > SYMPTOMS of too worn?? (below min.) > > > > > > Fred has singles, OR A KIT of assorted, If I remember right? > > > > > > (asking you here fred instead of directly, so others also get to > KNOW.) > > > > > > --- On Thu, 3/17/11, spike55_bmw wrote: > > > > > > > > > From: spike55_bmw > > > Subject: [DSN_KLR650] Re: Shims?? > > > To: DSN_KLR650@yahoogroups.com > > > Date: Thursday, March 17, 2011, 12:03 PM > > > > > > > > > > > > > > > > > > > > > The shims, themselves, don't wear at all, per se, but the valve > does and becomes what some discribe as a "pizza cutter" - thin / sharp > edge. > > > > > > The pre-08 valves were to be checked in the first 5,000-6,000 > miles. I think that the post-07 valves are longer lived and are to be > checked at 10,000 miles. > > > > > > My inspections on my '06 indicate that it took about 10,000 miles > to go from max clearance to the minimum on the new engine but then > that "gap shrinkage" process slowed down. I continued to check it > about every 5,000-6,000 miles anyway to bring the clearance up to max > when I can. > > > > > > The engine has 30,000 on it now and sometimes I don't have enough > gap shrinkage to fit the next thinner shim in. I have 6 more shim > sizes (thinner) to go before I have to start over with new valves. > > > > > > Don R100, A6F > > > > > > --- In DSN_KLR650@yahoogroups.com > , mark ward wrote: > > > > > > > > I pulled Mine last summer and were in the 50/50 range Could > change or leave, and two were CLOSE but still not there YET. > > > > > > > > I don't want to keep taking it apart to check. > > > > Do you have ROUGH estimate and how fast they wear??? > > > > > > > > Travel Safe! Travel Well! > > > > Mark (W. Mi.) > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > [Non-text portions of this message have been removed]

[Eddie]

I remember one bike from the mid 80's with hydraulic automatic valve lash adjustment that would just plain RUN. It would go zero to 60 in under 3 seconds. And that was with a steel-framed, shaft driven 699cc inline four. MSRP was like $2999, too! Anyone else remember the bike? eddie

> [Original Message] > From: RobertWichert > I suppose these ULTRA high performance bikes could NEVER use > hydraulics. No room, la la la. > > Robert P. Wichert P.Eng LEED AP > +1 916 966 9060 > FAX +1 916 966 9068 >

[Fred Hink]

You must be thinking about the 1983-85 Honda CB650SC. Fred www.arrowheadmotorsports.com From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of eddie Sent: Friday, March 18, 2011 8:39 AM To: KLR650 list Subject: [DSN_KLR650] NKLR hyd. valve lash memory. I remember one bike from the mid 80's with hydraulic automatic valve lash adjustment that would just plain RUN. It would go zero to 60 in under 3 seconds. And that was with a steel-framed, shaft driven 699cc inline four. MSRP was like $2999, too! Anyone else remember the bike? eddie

> [Original Message] > From: RobertWichert > > I suppose these ULTRA high performance bikes could NEVER use > hydraulics. No room, la la la. > > Robert P. Wichert P.Eng LEED AP > +1 916 966 9060 > FAX +1 916 966 9068 >

[Non-text portions of this message have been removed]

[Eddie]

Close, Fred! Different hint: According to the print ad, it could go "Zero to sixty faster than you can read this." =) eddie

> > > > [Original Message] > > From: Fred Hink > > To: ; KLR650 list DSN_KLR650@yahoogroups.com> > > Date: 3/18/2011 10:53:58 AM > > Subject: RE: [DSN_KLR650] NKLR hyd. valve lash memory. > > > > You must be thinking about the 1983-85 Honda CB650SC. > > > > > > > > Fred > > > > >

[Fred Hink]

The advertising here says the Honda Nighthawk is the fastest 650 "Superbike". http://hondanighthawks.net/650.htm From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of eddie Sent: Friday, March 18, 2011 8:58 AM To: KLR650 list Subject: [DSN_KLR650] NKLR hyd. valve lash memory. Close, Fred! Different hint: According to the print ad, it could go "Zero to sixty faster than you can read this." =) eddie

> > > > [Original Message] > > From: Fred Hink > > > To: >;

KLR650 list DSN_KLR650@yahoogroups.com >

> > Date: 3/18/2011 10:53:58 AM > > Subject: RE: [DSN_KLR650] NKLR hyd. valve lash memory. > > > > You must be thinking about the 1983-85 Honda CB650SC. > > > > > > > > Fred > > > > >

[Non-text portions of this message have been removed]