Wilsons Sandbox

On Tue, 27 Feb 2007 01:36:38 -0000 "dan.irby" writes:

> Do I really need to retorque the head bolts on my 2005 KLR250 at 500 > > miles like the manual says? This motor is VERY similar to the KLR600 > > and KLR650. Seems like a lot of work, and perhaps unnecessary. Any > feedback here gentlemen? Dan/Syracuse

<><><><><><> <><><><><><> Dan, Below is my reply from last Friday. I tried to also send it straight to you but it got rejected. 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 Re: [DSN_KLR650] Routine Maintenance...cylinder head bolt tightening question On Fri, 23 Feb 2007 22:44:22 -0000 "dan.irby" writes:

> Folks, I own a 2005 KLR250. The maintenance schedule in the owners > manual and supplement manual suggests checking "cylinder head bolt > torque" at 500 miles. It also suggests a valve adjustment at this > milage. The valve adjustment is pretty simple (the 250 has tappet > screws rather than the shim/bucket system on the 650), but > retorquing > the head bolts is more involved. That would require removing the cam > > shafts and oil delivery tube. My question is......is it REALLY > necessary to check the head bolts at 500 miles AND how many of you > guys > have actually EVER checked head bolt torques? Thanks, Dan > Irby/Syracuse KLR250 D-22, KE100-B20.

<><><><><><><> <><><><><><><> Dan, I've never worked on a KLR250 but checking the headbolt torque makes sense to me. On airhead BMW engines headbolt torque gets checked a few times between top end jobs and also right after a top end is put together and again at about 500 miles. Now you've got me thinking about why we don't do it on the KLR650. : ) Seems if you are gonna be in the top end it would only take a few extra minutes, maybe 20-30???, to pull the cams and oil delivery tube, check torque and reinstall the oil delivery tube and cams. But that's just me guessing here since I haven't been in the engine. On airheads you loosen the head bolts about 1/4 turn, one at a time, and retorque to 25 foot pounds. There are only 6 bolts on a side and nothing has to be removed once the valve cover is off. Probably adds about 2 minutes to the valve adjustment job. It'll be interesting to hear if you decide to check the torque or not. 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 [Non-text portions of this message have been removed]