klr650 : was ** main jet ** now is ** iridium **

[Luc Legrain]

Great feed back .Thanks. I already have the iridium plug installed . I am more tempted to go with the larger jet and go down if I have to,we'll see how the thumper reacts. As far as Federal Lands none within 7-800 miles radius (monkey butt), plenty of gravel , dirt back roads,jeep trails, even skunk trails...

--- On Thu, 6/18/09, tomatocity wrote: From: tomatocity Subject: Re: [DSN_KLR650] klr650-- *** Main Jet *** To: "Luc Legrain" Date: Thursday, June 18, 2009, 4:12 PM Those mods should make the engine very lean and the exhaust should keep you from using Federal Lands legally. I would start with the 148 main jet and the clip in the number 3 notch. Always use the Thick Brass Spacer on top of the C clip. A .030 #4 SS washer will allow you to make half notch adjsutments. You might as well install the NGK Iridium spark plug since it is the best spark plug available for the KLR. Read the spark plug and tail pipe as you make adjustments between long rides. If you continue to run lean and are unable to find a good adjustment then you might want to tape over the holes in the airbox mod. On Thu, Jun 18, 2009 at 9:09 AM, Luc Legrain wrote: i did the air box mod, Hi flow air filter, opened up the stock pipe took the spark cone out, enlarge the baffle hole and 21/2 inches stub . Loud but not annoyingly loud. --- On Thu, 6/18/09, tomatocity wrote: From: tomatocity Subject: Re: [DSN_KLR650] klr650-- *** Main Jet *** To: "Luc Legrain" Date: Thursday, June 18, 2009, 7:01 AM What mods have you made? On Thu, Jun 18, 2009 at 4:58 AM, Luc Legrain wrote: I got the DynoJet kit stage 1 and 2 from Fred. With the mods I've made I'll put the stage 2 in . --- On Thu, 6/18/09, tomatocity wrote: From: tomatocity Subject: Re: [DSN_KLR650] klr650-- *** Main Jet *** To: "Luc Legrain" Date: Thursday, June 18, 2009, 6:56 AM Yep. What kit did you get? On Thu, Jun 18, 2009 at 4:32 AM, Luc Legrain wrote: got me a re-jetting kit which I will install this w/e . I assume the " MAIN JET " is the one where the needle seats in, correct ? Thanks [Non-text portions of this message have been removed]

[Ross Lindberg]

For what it's worth, I'll put in my experiences with the KienTech exhaust mod done by Jesse Kientz at Kientech Engineering. I had thought about doing the holesaw mod, but remembered someone mentioning Jesse and being very pleased with the outcome, so I gave him a call. Jesse normally works on Suzuki DR's, but reluctantly agreed to do the muffler off my KLR. Not only is he very knowledgeable about the innards of the muffler, but he is very particular as well. He cuts the canister in half so he can make sure the spark arrester does not get damaged, and he also does some welding inside to make sure the muffler and spark arrestor hold up over the long haul and through lots of abuse. Like Jeff, Jesse is NOT a fan of loud exhausts either, so he promised a deeper tone, but not much more noise which was exactly what I wanted. I also wanted a bit of a turn-down at the outlet so rain wouldn't run in so readily when parked outside overnight. I boxed it up and shipped it to Jesse. He told me he was pretty busy, and likely wouldn't get to it for awhile, but in 2 weeks it was back on the bench. (I did this last winter by the way) I thought about doing a write-up about it then, but wanted to put a few miles on it to give it a good test. After an entire winter and most of the spring laid up with back trouble, I am FINALLY able to ride and have about 400 miles on the exhaust so far. I asked Jesse about needing to rejet since it appears to flow more volume. He suggested shimming the needle jet with 1 washer. I tried the bike without shimming first so I could see if I noticed a difference. Sure enough, it was harder starting when cold, seemed to take longer to warm up, and felt like it was starving a bit for fuel. I dropped in 1 washer and problems solved. After 400 miles, what do I think? Getting Jesse's love and attention for your KLR isn't real cheap at $100, but I feel the quality of his workmanship is worth it. I feel better knowing that it has been inspected inside and out, and he gives his personal guarantee that it will hold together for the long haul, plus the spark arrestor is still functional. I don't notice any more noise to the exhaust, which was very important to me, and the extra fuel and free flowing intake (intake snorkle removed, Twin-Air air filter from Fred, .22 cent washer mod, and drilled carb slide) and exhaust really woke the bike up. The first ride after shimming the needle was into a 40 mph headwind. No shortage of power, and the engine was ready for more load. I am very pleased and would recommend his work to anyone considering modifying their exhaust. Ross Lindberg Finally riding in Fertile MN

--- In DSN_KLR650@yahoogroups.com, Jeff Khoury wrote: > > I understand completely and I don't like extremely loud exhausts either. > > This mod, while it is a little louder, I'm sure it's still under 93db and the police don't even blink at me. The tone is significantly deeper, and the spark cone is still in place. > > (Just to clarify) > > -Jeff Khoury > > > ----- Original Message ----- > From: "Jeff Saline" > To: jeff@..., ridingmyklr@... > Cc: "DSN KLR650" DSN_KLR650@yahoogroups.com> > Sent: Thursday, June 18, 2009 10:15:19 AM GMT -08:00 US/Canada Pacific > Subject: Re: [DSN_KLR650] Exhaust Modifications > > > > > Guys, > > The link below might be of some interest about exhaust noise and spark arrestors. > > My guess is any modification to the KLR exhaust system voids the USFS approval. > > I prefer to ride only with folks with fairly quiet exhaust systems that have "real" spark arrestors. I don't mind telling someone I won't ride with them because of their exhaust or riding habits they have that I don't like. I don't want to be or encourage problems. > > 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 > > http://www.quietbike.org/Noise_Presentation_Supplement_7_03.pdf > > Society of Automotive Engineers (SAE) Recommended Practice SAE J350, "Requirements of Single Position Application General Purpose Arresters > > Society of Automotive Engineers (SAE) Recommended Practice SAE J335b, "Multi-Positioned Small Engine Exhaust Fire Ignition Suppression." Requirements to obtain the SAE J335b specifications are as follows: > > (i) The spark arrester shall be designed to retain or destroy ninety percent of the carbon particles having a major diameter greater than 0.023 inches (0.584mm). > > (ii) The exhaust system shall be designed so that the exposed surface temperature shall not exceed five hundred fifty degrees Fahrenheit (288 degrees Centigrade) where it may come in direct contact with forest fuels. > > (iii) The exhaust system shall be designed so that the exhaust gas temperature shall not exceed four hundred seventy-five degrees Fahrenheit (246 degrees Centigrade) where the exhaust flow may strike forest fuels. > > (iv) The exhaust system shall be designed in such a manner that there are no pockets or corners where flammable material might accumulate. Pockets are permissible only if it can be substantiated by suitable test that material can be prevented from accumulating in the pockets. > > (v) The exhaust system must be constructed of durable material and so designed that it will, with normal use and maintenance, provide a reasonable service life. Parts designed for easy replacement as a part of routine maintenance shall have a service life of not less than fifty hours. Cleaning of parts shall not be required more frequently than once for each eight hours of operation. The spark arrester shall be so designed that it may be readily inspected and cleaned. > > SNIP > > > ... > > ____________________________________________________________ > You can take it with you! Click here for a luxurious new motor home and travel in style! > > > [Non-text portions of this message have been removed] >