doohickey story - long

[RobertWichert]

Well, maybe. Did they cause any problems? Robert Wichert P.Eng. LEED AP BD&C +1 916 966 9060 FAX +1 916 966 9068 ===============================================

On 8/19/2013 6:03 PM, Glenn Sturley wrote: > Hi Robert, > I had the same problem when I pulled the flywheel off on the KLR650C. > The Doohickey was in perfect condition but....where was the spring? > I changed the Doohickey for Eagle Mike's device with a new spring but > couldn't find the old spring. > Some months later I had to replace the Oil/Water seal and in removing > the right hand side clutch cover saw the coarse oil filter screen. I > removed the screen (mounted to the lower right of the clutch assembly) > and lo and behold, found all the pieces of spring lodged on the screen. > I therefore suggest you do the same and remove the RHS crankcase cover > and check the screen for bits. > Cheers > Glenn > ----- Original Message ----- > *From:* RobertWichert > *To:* Jeff Saline > *Cc:* DSN_klr650@yahoogroups.com DSN_klr650@yahoogroups.com> > *Sent:* Tuesday, August 20, 2013 9:38 AM > *Subject:* Re: [DSN_KLR650] Doohickey Story - Long > > Update... > > The spring was, and is, definitely broken. The crankcase hook end is > MIA. The spring itself shows some signs of abuse (Dented a bit. Prolly > got caught by the chain or something.). > > I will try to find the hook end. > > I also need to look for one thrust washer which appears to have gotten > away from me. Fishing expedition starts tomorrow. > > This is probably just for curiosity, but how do you index/time the > balancer(s)? Is there a mark or something? It appears that I can > remove the tensioning sprocket. As a matter of fact, the insides of the > tensioning sprocket fell out on their own. I haven't moved anything, > but I'd like to know that the timing of the balancer(s) is right, so if > there is a way to do that, and you know what it is, kindly help me out. > > Any other hints or ideas are welcome. > > Bottom line - Bad spring. No cookie. > > Robert Wichert P.Eng. LEED AP BD&C > +1 916 966 9060 > FAX +1 916 966 9068 > > =============================================== > > On 8/17/2013 10:16 AM, RobertWichert wrote: > > > > 25,000 miles. Time for a chaing. > > > > Robert P. Wichert P.Eng. LEED AP BD&C > > +1 916 966 9060 > > FAX +1 916 966 9068 > > > > On Aug 17, 2013, at 9:46 AM, Jeff Saline > > > wrote: > > > > > On Sat, 17 Aug 2013 09:02:04 -0700 RobertWichert > > > > > > > writes: > > >> I'm pretty sure I've been running it like this though. I noticed > > >> more > > >> vibes than usual and I was wondering so I took it apart. > > >> > > >> How strong is that spring, anyway? I kind of feel resistance, but > > >> it > > >> may just be the chain. > > >> > > >> Would a broken spring cause more vibes than usual? > > >> > > >> > > >> Robert Wichert P.Eng. LEED AP BD&C > > >> +1 916 966 9060 > > >> FAX +1 916 966 9068 > > > <><><><><><> > > > <><><><><><> > > > > > > Robert, > > > > > > The spring puts a pretty good tension on the doohickey. When you > get to > > > the chain there will be no more movement. > > > > > > A broken spring by itself probably won't cause more vibration. What > > > usually happens is the spring is broken because that's what > happens with > > > KLRs. Then instead of fixing this common issue early in the bike's > life > > > the owner thinks it won't happen to them. The spring breaks and > there is > > > absolutely no indication in most cases. In a few cases part of the > > > broken spring gets into an important part and destroys the lower > end of > > > the engine. In rare cases it locks the engine and causes an accident. > > > Finally the owner decides they should do some maintenance and > > loosens the > > > adjuster lock bolt about a turn. Since there is no spring tension, any > > > tension that was on the chain is relieved. This is a slack chain > and can > > > put the balancer shafts out of time just a tad. The owner tightens the > > > adjuster lock bolt to 69-71 inch pounds and thinks all is fine. What > > > they really did was loosen the chain and cause a problem. They may > > > notice more vibration but since they still feel lucky they > attribute it > > > to the KLR being a large thumper or something else. > > > > > > On the Gen I KLRs the springs are known to break more than the > > doohickeys > > > but there are problems with both. On the Gen II KLRs the springs often > > > are no longer providing tension by 1,500 miles and for sure you are > > lucky > > > if at 5,000 miles there is any tension at all with the stock > spring. The > > > Gen II doohickeys are redesigned and much stronger than the previous > > > version but the hole is often a bit larger (0.005" or so) and > > doesn't fit > > > on the shaft quite as well as it should/could. The fix is the same > > in all > > > cases and cost is pretty reasonable compared to the cost of damage > that > > > could be caused by not taking care of this issue. > > > > > > 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 > > > > > > . > > > . > > > . > > > . > > > . > > > > > > __________________________________________________________ > > > One Weird Trick > > > Could add $1,000s to Your Social Security Checks! See if you > Qualify... > > > http://thirdpartyoffers.juno.com/TGL3141/520fa8b0ba08328b041c6st03vuc > > > > > > > > > [Non-text portions of this message have been removed] > > > > No virus found in this message. > Checked by AVG - www.avg.com http://www.avg.com> > Version: 2013.0.3392 / Virus Database: 3211/6588 - Release Date: 08/18/13 > [Non-text portions of this message have been removed]