mikuni carb for klr?

[Peter Dore]

Question for the group. Ok, so I changed out my Contintental rear and stock front, for some new Heidenau K76's. by my reckoning true 50/50 tires, or maybe a bit more street oriented. I was hoping for less vibration and better cornering, and got both, and a much, much more stable feel on the highway. I was not expecting to be able to go 60 mph in 4th and still be sitting at 4000 rpms, and at 75 in 5th, it was barely getting to 5500 rpms. Before these tires, I would be near 5000 rpms in 4th gear by 45 mph, and would be over 5500 rpms in 5th gear by 60 mpH and probably over 6000 rpms by 75 mph. Does this make sense? I have to say I love it, my right hand isn't going numb any more, and the bike handles like a dream, I absolutely love it. I used to try to keep the RPMs below 3000, to save my right hand from going numb, now I can tare through the curves in 3rd and 4th so I have more power coming out of the curves and don't have to use the breaks going into the curves, a whole lot more fun than cruising through them in 5th to keep the vibrations low. Can anyone explain why I would have lower rpms with nothing new but new tires? I mean I did do the best cleaning job I have ever done on the chain and sprockets while I had the wheels off, but I don't think that would do it. Peter In St. Louis [Non-text portions of this message have been removed]

[Fred Hink]

Don t think that will work since the KLR has an electric starter to contend with and the XR doesn t. A pumper carb hangs down too much and would hit the starter. It was a round slide carb that we used to use. I believe it was the 38mm. They are priced reasonably around $100 I think. Yes I know this is slightly smaller than the stock carb but there was never a complaint about having less power. Fred http://www.arrowheadmotorsports.com From: Lee Dodge Sent: Monday, February 4, 2013 9:00 AM To: Fred Hink ; RobertWichert Cc: GMac999 ; KLR650 List Subject: Re: [DSN_KLR650] MIkuni Carb for KLR? Go to the Mikuni website and sarchh for a replacement carb for the XR 400R. It may be close . It's a pumper direct pull. You could also just Google XR400 R carb replacement. I know the website XR's Forever? has a kit since the bare carb from Mikuni won't match up directly to the XR air box. Cost . . @$400 ?? Anyway this looks like what you'all were describing. Lee -------------------------------------------------------------------------------- From: Fred Hink To: RobertWichert Cc: GMac999 ; Lee Dodge ; KLR650 List DSN_KLR650@yahoogroups.com> Sent: Mon, February 4, 2013 9:50:27 AM Subject: Re: [DSN_KLR650] Wide Ratio gearsets Mikuni makes the carb, Motion Pro makes the throttle and you make the cable. Fred http://www.arrowheadmotorsports.com -----Original Message----- From: RobertWichert Sent: Monday, February 4, 2013 8:46 AM To: Fred Hink Cc: GMac999 ; 'Lee Dodge' ; 'KLR650 List' Subject: Re: [DSN_KLR650] Wide Ratio gearsets OK, Fred, I'll bite. Who makes this wonderful item? Robert Wichert P.Eng. LEED AP BD&C +1 916 966 9060 FAX +1 916 966 9068 ===============================================

On 2/4/2013 7:43 AM, Fred Hink wrote: > Yes, drilling the slide does make a difference but until you ride a 650 with a direct pull carb, you don't know what you are missing. There is no hesitation with this carb. Lofting the front wheel over a rock or log at an idle is instantaneous. No waiting on the vacuum to catch up. A 650 single is a torque monster and the CVK carb is killing this beast. The CVK carb is a good all around carb and a good match for the KLR but if you are wanting your KLR to pull hard at very slow speeds, this vacuum operated carb is a weak link. > > Fred > http://www.arrowheadmotorsports.com > > > -----Original Message----- From: GMac999 > Sent: Monday, February 4, 2013 8:24 AM > To: 'Fred Hink' ; 'Lee Dodge' ; 'RobertWichert' > Cc: 'KLR650 List' > Subject: RE: [DSN_KLR650] Wide Ratio gearsets > > Fred, > > That's what drilling the slide does, gets more vacuum to pull the slide up. It really makes a difference in the low RPM snap and power. It doesn't seem to effect the mid and upper rpm power or mpg. > > GregM > > > -----Original Message----- > From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of Fred Hink > Sent: Monday, February 04, 2013 9:05 AM > To: Lee Dodge; RobertWichert > Cc: KLR650 List > Subject: Re: [DSN_KLR650] Wide Ratio gearsets > > I believe one of the big problems with the KLR is that the CVK carburetor needs vacuum to operate the slide and at low speeds there isn t enough vacuum to make the carb work like it should. Pulling up a steep incline at slow speeds and you power out, this is not good. The engine is able to make adequate torque but since the slide isn t opening when you want it, it feels like a 125 instead of a 650. Changing the carb to a direct pull type of carb makes all the difference and I doubt you would need a wide ration or 6 speed transmission. White Bros. used to sell a Motion Pro carb kit for the KLR that included a Mikuni direct pull carb, the throttle, cable and everything else you needed to bolt in this carb to your KLR. Mikuni still makes this carb and it is reasonable priced. You would have to come up with the cable as the throttle is still available too. This would wake up the bottom end and would be especially noticed at trail riding speeds, not so much at freeway speeds. If anyone would like to experiment with a Mikuni carb, let me know. > > There are some that have used first gear out of the early model KLR600 to gain better low end gearing. This helps but is pretty expensive and you don t see the KLR600 much anymore. > > IMS a while back was making wide ratio gear sets for some of the MX type bikes. I asked IMS at one point if they might make a gear set for the KLR and they said they could but the price was prohibitive. > > Fred > http://www.arrowheadmotorsports.com > > > > From: RobertWichert > Sent: Monday, February 4, 2013 7:52 AM > To: Lee Dodge > Cc: KLR650 List > Subject: Re: [DSN_KLR650] Wide Ratio gearsets > > > I actually like the 13 tooth sprocket so much, I would not want to > switch back to stock no matter what. But another gear? THAT I would > like. Top gear would be a stock ratio fifth gear, as a sixth gear. > Wide ratio would be a decent improvement, if it was equivalent to a 13 > tooth top gear, in fourth, and fifth was stock. > > But I'm broke. > > Robert Wichert P.Eng. LEED AP BD&C > +1 916 966 9060 > FAX +1 916 966 9068 > > =============================================== > > On 2/3/2013 11:45 AM, Lee Dodge wrote: >> >> With the talk of gearing the KLRs and such I've provided a link to a >> site where >> you can see the cost ofa wide box for the Suzuki DRz400. I found >> another out of >> England for @ 1200USD. >> Yes the KLR would benefit from a change of some ratios (as would many >> non racing >> off roaders ) but the cost for development is HIGH. We''re on our own, >> so keep >> a selection of C'shaft sprockets, they're not expensive and very >> available, >> they'll only cost you time. >> Lee >> >> ________________________________ >> From: Bob K mailto:cbrxx98%40hotmail.com > >> To: mailto:moabmc%40citlink.net ; >> mailto:dsn_klr650%40yahoogroups.com >> Sent: Wed, September 8, 2010 5:07:06 PM >> Subject: RE: [DSN_KLR650] Re: 13 Tooth Road Ride Report >> >> I don't think the stock KLR has enough grunt to pull a 6th gear with a >> large >> rider or a loaded bike. Wish it did though........... >> >> Bob 09 >> >> ________________________________ >> To: mailto:DSN_KLR650%40yahoogroups.com ; >> mailto:judjonzz%40msn.com >> From: mailto:moabmc%40citlink.net >> Date: Wed, 8 Sep 2010 15:45:23 -0600 >> Subject: Re: [DSN_KLR650] Re: 13 Tooth Road Ride Report >> >> IMS back in the day used to make a wide ratio gear set for the CR500. >> If there >> were enough demand, a wide ratio gear set could be made for the KLR. >> Fred >> http://www.arrowheadmotorsports.com >> >> >> From: Jud >> Sent: Wednesday, September 08, 2010 10:45 AM >> To: mailto:DSN_KLR650%40yahoogroups.com >> Subject: [DSN_KLR650] Re: 13 Tooth Road Ride Report >> >> >> --- In mailto:DSN_KLR650%40yahoogroups.com >> , RobertWichert wrote: >> > >> >> > Man, I'd kill for a six speed, or even a two-speed primary. Heck, a >> > REALLY wide ratio gearbox would be OK with me. Compromise, >> compromise.... >> > >> > -- >> >> This is the one thing it would be nice if KHI would do. It is the one >> thing the >> aftarmarket can't do. >> >> [Non-text portions of this message have been removed] >> >> > > [Non-text portions of this message have been removed] > > > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > List Sponsors - Dual Sport News: http://www.dualsportnews.com > Arrowhead Motorsports: http://www.arrowheadmotorsports.com > List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html > Members Map https://maps.google.com/maps/ms?msid=212558560286766214899.0004d0fa9f1732283bb6f&msa=0&ll=38.522384,-109.489746&spn=6.831383,9.624023Yahoo! Groups Links > > > > > [Non-text portions of this message have been removed]