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www.DRRiders.comA Dedicated Suzuki DR650 forum for DR650 riders to share their knowledge, experience and adventures! |
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It is currently Tue May 22, 2012 5:18 am
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rnlcomp
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Post subject: Re: First Ride with the FCR Carb Posted: Mon Feb 06, 2012 7:17 pm |
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Joined: Tue Jul 26, 2011 6:17 pm Posts: 1036 Location: Louisiana
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Motodeficient wrote: First, yes, no problem. I am talking about 2nd. That's why I said ditto to Rev, in 2nd I just ease back in the seat a little and roll on the throttle.
_________________ 2011 DR650SE "True Thumper" born on 10/22/11 TM40 Pumper, 40F0, etc......
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herrmnnn
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Post subject: Re: First Ride with the FCR Carb Posted: Mon Feb 06, 2012 7:49 pm |
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Joined: Fri Nov 25, 2011 6:05 pm Posts: 79 Location: Mildura VIC Australia
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GaThumper wrote: I'm an old enduro rider and maybe some of it is differences in riding technique. I've got a habit of lightening the front end with my throttle for rocks, limbs, mud holes, creeks, etc. For me it's all about utilizing the weight transitioning from the back to front to back again and using the fork springs to "push" up the front end. I hope that makes sense? Maybe I convinced SOMEONE that I knew what I was talking about!
Makes perfect sense. 
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mxrob
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Post subject: Re: First Ride with the FCR Carb Posted: Tue Feb 07, 2012 11:11 am |
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Joined: Fri Sep 10, 2010 10:22 am Posts: 3007 Location: Kentwood, MI, USA
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Even my 48HP FI machine with the HC piston and Web 223 cam and 14/42 gearing does not just power wheelie in second gear. Now I'm talking about a no help power up. Sit in your normal riding position and open the throttle... no clutching, no yanking, no tugging or sliding back in the seat, no uphill run, no bumps in the street. With ANY of the previous added to the equation the front wheel is off the ground in second. One thing for sure just getting the correct shock spring for your weight will make a difference in the weight transfer and therefor will affect how the front end reacts to throttle applications. Add to that better dampening and you will notice a lighter front end under acceleration if the shock is set up properly. 
_________________ - Moe
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Kommando
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Post subject: Re: First Ride with the FCR Carb Posted: Wed Feb 08, 2012 12:44 am |
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Joined: Sun Oct 09, 2011 2:03 pm Posts: 97 Location: Spacecoaster FL, USA
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I'm guessing Rob has something about setting up the springs for your weight. I'm approx. 200lb, and the previous owner sprung my DR for about that weight.
My DR has the BST with Procycle kit...opened airbox and drilled slide. I was running an FMF Q that the previous owner installed. The front end would throttle-only loft in 1st on stock gears...with a passenger, tankbag, and tank panniers. I'm not talking slowly coming up either. It would JUMP up with just a good blip. It would come up in 2nd on stock gears too, but I typically let off a hair at revs and then cracked it open.
The FMF started falling apart, and I wanted something quieter for a long trip, so I put the stock exhaust on. The DR still wheelied in 1st pretty well with a passenger, but it didn't come up quite as quick. By myself, I had to lean back a bit and tug in 2nd.
I recently swapped to 520 chain and 16/46 sprockets. I tried the 46t rear with my stock 15t CS, but the top end was buzzy after 70-75MPH (indicated). The front end comes up pretty easily in 1st, but 2nd still requires a bit of tug/lean back. I haven't readjusted the carb since putting the stock exhaust back on, so it's probably a bit rich.
_________________ Dualsport rider, former jarhead, Dos Equis test-drinker, Hawaiian Tropic Bikini Team Oilboy...It's a rough life, but somebody's gotta do it.
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Kommando
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Post subject: Re: First Ride with the FCR Carb Posted: Wed Feb 08, 2012 12:52 am |
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| Trail Rider |
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Joined: Sun Oct 09, 2011 2:03 pm Posts: 97 Location: Spacecoaster FL, USA
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I'm guessing Rob has something about setting up the springs for your weight.
My DR has the BST with Procycle kit...opened airbox and drilled slide. I was running an FMF Q that the previous owner installed. The front end would throttle-only loft in 1st on stock gears...with a passenger, tankbag, and tank panniers. I'm not talking slowly coming up either. It would JUMP up with just a good blip. Solo, it would come up in 2nd on stock gears too, but I typically let off a hair at revs and then cracked it open.
The FMF started falling apart, and I wanted something quieter for a long trip, so I put the stock exhaust on. The DR still wheelied in 1st pretty well with a passenger, but it didn't come up quite as quick. By myself, I had to lean back a bit and tug in 2nd.
I recently swapped to 520 chain and 16/46 sprockets. I tried the 46t rear with my stock 15t CS, but the top end was buzzy after 70-75MPH (indicated). The front end comes up pretty easily in 1st, but 2nd still requires a bit of tug/lean back.
I haven't readjusted the carb since putting the stock exhaust back on, so it's probably a bit rich.
_________________ Dualsport rider, former jarhead, Dos Equis test-drinker, Hawaiian Tropic Bikini Team Oilboy...It's a rough life, but somebody's gotta do it.
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GaThumper
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Post subject: Re: First Ride with the FCR Carb Posted: Sun Apr 01, 2012 12:09 am |
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| Trail Rider |
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Joined: Mon Jul 18, 2011 7:07 pm Posts: 111 Location: Georgia
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Got my suspension sorted out, springs and emulators up front to match the Cogent shock in the back, stock pegs modded lower, haven't changed the stock DR remote choke to the FCR choke lever yet, but having no problems starting with the choke off and 3-4 attempts with a couple of throttle pumps. I'll get the FCR choke installed when I check the valves, maybe next week.
Anyway, I wanted to add to the discussion here that I went out with my riding buddy for about an hour this afternoon and had the chance to ride both bikes back to back. He has the stock BST with Procycle jet kit, DG O pipe with quiet insert, airbox about half open and 15t sprocket. Mine has one of Rob's FCRs, DG O pipe, airbox top fully open, and 14t sprocket.
Fist I have to say, my FCR is as perfectly dialed in as ANY carb I've ever had. Bravo Rob! I didn't really look at how it was setup before I installed it, but it is smoooth from idle to wot and everywhere in between. Power comes on instantly and evenly at all rpms.
With the 14t installed my throttle response is awesome. It comes up in 1st with nothing but throttle and 2nd comes up easily, maybe not with just the throttle, but I'm not talking about using the clutch, yanking on the bars or hitting a bump with the front end, just a throttle off and on and the weight transition to the front and then back to the rear brings the front up with ease.
My buddys with the BST and 15t is almost impossible to get the front up without the clutch. The FCR and 14t may not come up with nothing but throttle, but it comes up really easy compared to the BST. That's really important to me off road. I want to be able to loft the front wheel over an obstacle quickly and easily and with control. The FCR does that. And I love the feel of the FCR. It's almost electric motor smooth when twisting the throttle. The BST bike has a little delay when you twist the throttle, I'm assuming that's the time it takes the vacuum to build and raise the slide? Maybe it's just not set up optimally yet. If my bike had the BST and I rode a bike with the FCR, I'd be writing a check the next day. It's that much better.
The lowered pegs also worked really well for me. It may only be an inch or so, but it was immediently noticable and better sitting or standing. Definately a good mod for me. I'm 5-11 and my 5-10 buddy with short legs preferred the stock pegs, but when I switched to his bike it felt like my knees were way up there. Only an inch or maybe an inch and a half, but what a difference.
Next up, Highway Dirt Bikes risers, clamps, and hand guards along with Pro Taper bars! I've got an original set of EA70 Protapers in the Henry Reed bend and I'm going to give them a try. I wanted Rox risers, but I don't think I want to combine the HDB and Rox. I'm hoping that with an extra inch on the bottom of the HDB clamps and the Pro Taper bars, I can get a comfortable handlebar position.
Still trying to decide about a skid plate. I've got an older Baja Designs skid plate that was on my '03 and I may put in on, but I've been looking at the SW Motech and also the TCI Products combo with the skid plate and crash bars. I kind of like the idea of the crash bars and may give them a try.
Catch you Later!
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