[dsn_klr650] new bad sound

[Mark]

I had a similar sound in my A2; I thought it was piston slap. When I pulled the right engine cover off to do clutch maintenance and to check the oil strainer, I noticed that the 2 gears on the crankshaft that drive the clutch basket and oil pump had the tiniest bit of an the nut was loose. There's a locking tab on the washer, so I wasn't worried about it falling off. Anyway, I retorqued it to its 87 FtLb spec. After I got the bike back together, the noise was gone! I think that the engine case has an amplifying "guitar effect" that makes small noises sound like big problems. Another example: just before the cam chain tensioner goes to its next position, my bikes sound like the valves are really loose. The extra play in the chain makes noise as it slaps against the guides, I guess. Mark B2 (26K miles) A2 (42K miles) ----> balancer chain tensioner just his its limit. At 10:45 AM -0700 5/16/2000, Lou B. DeSimone wrote:

>Which noise is it? Burnt out valve? Piston slap requiring top-end rebuild? a >rod ready to go? > >Bike sounds a lot like it used to, but loader, sloppier, and ready to break. >A mechanic said he didn't know what it was, but that I better park it quick >until I can take the engine apart until I find out what it is. > >It's rhythmic, mostly noticeable when idling, and goes away when driving. >Although high end performance had recently decreased due to the need for a >valve adjustment (10,000 mi.), it came on all of a sudden when I came to a >stop sign. > >Anybody? > >Lou DeSimone >'97 KLR650 with 33K mi > > >------------------------------------------------------------------------ >Accurate impartial advice on everything from laptops to table saws. >http://click.egroups.com/1/3020/5/_/911801/_/958499360/ >------------------------------------------------------------------------ > >Visit the KLR650 archives at >http://www.listquest.com/lq/search.html?ln=klr650 >Support Dual Sport News... dsneditor@... >Let's keep this list SPAM free! > >Visit our site at http://www.egroups.com/group/DSN_klr650 >To unsubscribe from this group, send an email to: >DSN_klr650-unsubscribe@egroups.com