valve settings and performance?

[Joseph Jones]

The dealer here in Middlesboro Ky. told me that doing the service myself would not effect the warranty.(just make sure you keep it all recorded)(some even want receipts showing you bought the right stuff). I had the dealer here(I did not buy the bike here)do my 600 mile service and he charged me $90. that included oil,filter,spark plug, and misc. shop supplies. I thought that was too much, but after hearing what others were being charged, think I got off cheep. They said they checked the valves, and everything else along with the oil, filter and plug change. I had not heard about asking for clearence specs untill after all was said and done. I ordered a clymer manual from Amazon.com for about $20. someone else posted they got theirs somewhere else online for $17.??. I now will do most of the work on my 04 myself, and I will keep a good detailed record just incase. Joe A18 5500 SE Ky --- rsanders30117 wrote:

> All you're paying for is maintaining the warranty. > I would double > check the valves after the dealer claims to have > done them. If the > valves are within spec, then you can start your > record keeping with > their values @ that particular mileage. If not > within spec, then > you've done yourself a service by correcting this > critical > adjustment. I personally like to set mine to the > high side & then > extend the check interval. > > Some dealers consider the first (& later) valve > check as free money, > no work at zero risk of being caught. This applies > to all MC. > > --- In DSN_klr650@yahoogroups.com, "klrkoehler" > > wrote: > > I recently purchased an 04 KLR650 and it is due > for it's first > > service (~600 miles). The dealer wants $200.00 > plus parts. This > > seems expensive to me!! Is there any reason I > should not do the > > services my self? (I am capable) Is the $200.00 > price tag for > > essentially an oil/filter change, valve > adjustment, and general > > check over reasonable? > > > > Any suggestions on the best place to purchase the > service manual? > > > > > > > > -Curt Koehler- (klrkoehler) > > > > List sponsored by Dual Sport News at > www.dualsportnews.com. List FAQ courtesy of Chris > Krok at: www.bigcee.com/klr650faq.html > Unsubscribe by sending a blank message to: > DSN_klr650-unsubscribe@yahoogroups.com . > > > Yahoo! Groups Links > > > DSN_klr650-unsubscribe@yahoogroups.com > > > >

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[Judson D. Jones]

--- In DSN_klr650@yahoogroups.com, "Pete Johnsen" wrote:

> It's understood setting the valve clearance at the max specifications > will extend the mileage between necessary valve adjustments. > Would setting the valves close to the min specs increase performance > since they would operate with less "delay"? Just a thought. Any > comments?

Setting them tight will maximize duration, aiding breathing and top end. Setting them loose will tend to boost combustion pressure slightly, helping low-end performance. Although the effect is very slight, when I was racing FVs we thought it worthwhile to set clearances on the tight side. In a class where very few mods were allowed, speed was the cumulative product of a lot of little details. If you were running the KLR motor in a spec class, and setting valves every week at least, tight clearances would make sense. For touring and off-road use, looser seems better.