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DSN_KLR650
klr6502k
Posts: 27
Joined: Wed Oct 18, 2006 11:56 am

valves check max or min clearence ?

Post by klr6502k » Mon Sep 14, 2009 1:36 pm

just doing my valve check and need to change shims. slappy is happy right? so go for min clearance? (.152mm Ex -- .013mm in) thanks. klr6502k

fasteddiecopeman
Posts: 813
Joined: Sun Nov 07, 2004 2:05 pm

valves check max or min clearence ?

Post by fasteddiecopeman » Mon Sep 14, 2009 1:46 pm

NO! Go for clearances on the MAXIMUM end of the range! Ed
--- In DSN_KLR650@yahoogroups.com, "klr6502k" wrote: > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k >

transalp 1
Posts: 203
Joined: Tue Jun 02, 2009 12:07 am

valves check max or min clearence ?

Post by transalp 1 » Mon Sep 14, 2009 1:51 pm

Ticking valves aren't burning. Quiet valves are like quiet (but still awake) 3 year olds: They are up to no good. eddie
> [Original Message] > From: klr6502k > To: DSN_KLR650@yahoogroups.com> > Date: 9/14/2009 2:36:34 PM > Subject: [DSN_KLR650] valves check max or min clearence ? > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k > > > > > ------------------------------------ > > List sponsored by Dual Sport News at: www.dualsportnews.com > List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html > Member Map at: http://www.frappr.com/dsnklr650Yahoo! Groups Links > > >

Rick McCauley
Posts: 526
Joined: Mon Feb 14, 2005 1:28 pm

valves check max or min clearence ?

Post by Rick McCauley » Mon Sep 14, 2009 3:54 pm

Good one Rick A17
--- On Mon, 9/14/09, transalp 1 wrote: From: transalp 1 Subject: RE: [DSN_KLR650] valves check max or min clearence ? To: "KLR650 list" DSN_KLR650@yahoogroups.com> Date: Monday, September 14, 2009, 1:50 PM Ticking valves aren't burning. Quiet valves are like quiet (but still awake) 3 year olds: They are up to no good. eddie > [Original Message] > From: klr6502k > To: > Date: 9/14/2009 2:36:34 PM > Subject: [DSN_KLR650] valves check max or min clearence ? > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k > > > > > ------------ --------- --------- ------ > > List sponsored by Dual Sport News at: www.dualsportnews. com > List FAQ courtesy of Chris Krok at: www.bigcee.com/ klr650faq. html > Member Map at: http://www.frappr com/dsnklr650Yah oo! Groups Links > > > [Non-text portions of this message have been removed]

dooden
Posts: 3355
Joined: Sat Dec 15, 2001 3:37 pm

valves check max or min clearence ?

Post by dooden » Mon Sep 14, 2009 6:18 pm

A Tappy Valve is a Happy Valve.. MAX clearance ( shim should be a thinner size ) Dooden A15 Green Ape
--- In DSN_KLR650@yahoogroups.com, "klr6502k" wrote: > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k >

Skypilot
Posts: 116
Joined: Thu Jun 05, 2008 7:46 pm

valves check max or min clearence ?

Post by Skypilot » Tue Sep 15, 2009 6:21 pm

All right, now I am confused. If the engine spec has a minimum and a maximum why would you go for anything but the exact middle?
> [Original Message] > From: klr6502k < klr6502k@...> > To: < DSN_KLR650@yahoogroups.com> > Date: 9/14/2009 2:36:34 PM > Subject: [DSN_KLR650] valves check max or min clearence ? > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k
[Non-text portions of this message have been removed]

Craig Kahler
Posts: 126
Joined: Sun May 06, 2007 7:52 pm

valves check max or min clearence ?

Post by Craig Kahler » Tue Sep 15, 2009 6:55 pm

As the valves face/head wears, the valve stem protrudes more, causing the gap to get smaller. If you are already adjusting the valves, maximum gap will give longer intervals between adjustments. That being said, If the valves are within spec., I would not adjust them just to get to maximum allowed gap. I only adjust when they are out of spec., and then to maximum gap. Craig Kahler
--- On Tue, 9/15/09, Skypilot wrote: From: Skypilot Subject: [DSN_KLR650] Re: valves check max or min clearence ? To: DSN_KLR650@yahoogroups.com Date: Tuesday, September 15, 2009, 7:21 PM All right, now I am confused. If the engine spec has a minimum and a maximum why would you go for anything but the exact middle? > [Original Message] > From: klr6502k < klr6502k@yahoo. ca> > To: < DSN_KLR650@yahoogro ups.com> > Date: 9/14/2009 2:36:34 PM > Subject: [DSN_KLR650] valves check max or min clearence ? > > just doing my valve check and need to change shims. > slappy is happy right? > so go for min clearance? (.152mm Ex -- .013mm in) > > thanks. > > klr6502k [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]

Jeff Saline
Posts: 2246
Joined: Fri Oct 10, 2003 6:02 pm

valves check max or min clearence ?

Post by Jeff Saline » Tue Sep 15, 2009 7:04 pm

On Tue, 15 Sep 2009 19:21:39 -0400 "Skypilot" writes:
> All right, now I am confused. If the engine spec has a minimum and a > maximum > why would you go for anything but the exact middle?
<><><><><><><><> <><><><><><><><> Skypilot, Valve clearances will get tighter as the valve train wears. So going for the maximum spec gives the longest interval between adjustments. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT . ____________________________________________________________ Instant Health Insurance Get fast, free health insurance quotes online now in 2 minutes. http://thirdpartyoffers.juno.com/TGL2141/c?cp=BZ1MqsdfivXNdAa4_8kLHgAAJ1DWfJIDP-R0_NC3mMpGFS0kAAQAAAAFAAAAAKGXZD0AAAAAAAAAAAAAAAAAEjgnAAAAAA==

judjonzz
Posts: 233
Joined: Sun Apr 21, 2002 11:33 am

valves check max or min clearence ?

Post by judjonzz » Tue Sep 15, 2009 9:17 pm

--- In DSN_KLR650@yahoogroups.com, "Skypilot" wrote:
> > All right, now I am confused. If the engine spec has a minimum and a maximum > why would you go for anything but the exact middle? >
Depends on what you are doing with the engine. If you are racing a Formula Vee, you might set the clearances as tight as possible for maximum lift and overlap in the very closely-regulated stock VW 1200cc engine. You will be looking at them no less frequently than every 50 miles or so, and can get away with running them a little tight. If you are setting clearances by measuring and swapping shims, a job you might not want (or need) to do as often as you might with screw-and-locknut adjusters, then you would set them at the max for the longest possible adjustment intervals. A happy side effect would be very slightly less overlap, higher combustion pressures, and higher low-end torque.

GaryS
Posts: 15
Joined: Tue Jan 22, 2008 7:35 pm

valves check max or min clearence ?

Post by GaryS » Wed Sep 16, 2009 5:50 pm

As the valves bang into the valve seats, they recess in and tighten the clearances up. Best to set them a little loose within the spec range. g
----- Original Message ----- From: To: "Jeff Saline" Cc: DSN_KLR650@yahoogroups.com> Sent: Wednesday, September 16, 2009 3:30 PM Subject: RE: [DSN_KLR650] Re: valves check max or min clearence ? Still doesnt make sense. As things wear out they get looser. The valve gap should get looser as things wear out or break in. What would make them get tighter? One other thing is still eating at my mind too. Performance is calculated in the middle of all spec clearances. That means the best performance occurs when all things are in the middle. The KLR is easy to work on. That is why we all like it. Why not just keep it in the middle. Valve clearances don't change that fast on a single that it would be hard to keep near the middle -------- Original Message -------- Subject: Re: [DSN_KLR650] Re: valves check max or min clearence ? From: Jeff Saline Date: Tue, September 15, 2009 4:59 pm To: skypilot@... Cc: DSN_KLR650@yahoogroups.com On Tue, 15 Sep 2009 19:21:39 -0400 "Skypilot" writes: > All right, now I am confused. If the engine spec has a minimum and a > maximum > why would you go for anything but the exact middle? <><><><><><><><> <><><><><><><><> Skypilot, Valve clearances will get tighter as the valve train wears. So going for the maximum spec gives the longest interval between adjustments. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT . ____________________________________________________________ Best Weight Loss Program - Click Here! http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTFoYc6L93ZtGan3JYOk7U0qbqLrxdaJXyCrMZBxGE9UCyJfFksmQI/ ------------------------------------ List sponsored by Dual Sport News at: www.dualsportnews.com List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html Member Map at: http://www.frappr.com/dsnklr650Yahoo! Groups Links

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