top speed, now ethanol

DSN_KLR650
Tony Cornett
Posts: 156
Joined: Fri Apr 12, 2002 8:34 pm

top speed

Post by Tony Cornett » Tue Apr 15, 2003 10:42 pm

Ron had mine to 107 indicated and still rising when I ran out of room. Maybe 110-113 mph. Then comes the 10 per cent speedo error. TC
----- Original Message ----- From: "Ron Klimoff" To: DSN_klr650@yahoogroups.com> Sent: Tuesday, April 15, 2003 7:30 PM Subject: [DSN_klr650] Top Speed > Hey Fellas, I'm just curious, what the fastest you guys have gone on > the KLR650? I had it wide open today, and I barely got to 100mph. > Mine is completely stock. I still thought I would see around 110-115. > I know a bigger front sprocket will increase the speed, I think I am > gonna go get one. It did have a full tank of gas, and I weigh 250. > Maybe I should go on a diet??? > > Thanks, > > Ron K > A16 > > > List sponsored by Dual Sport News at www.dualsportnews.com. List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html > Unsubscribe by sending a blank message to: > DSN_klr650-unsubscribe@yahoogroups.com . > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

dumbazz650
Posts: 457
Joined: Sat Mar 29, 2003 10:18 pm

top speed

Post by dumbazz650 » Tue Apr 15, 2003 11:30 pm

I am at least as ignorant as the average dolt, maybe even the above average dolt, but I don't see how drilling out the slide hole to 1/8 of an inch effects top speed or gas mileage. I was led to believe that this is a vacuum feed port that causes the slide to respond quicker to throttle openings, allowing the bike to rev up quicker. It effects neither total airflow, nor total fuel flow through any of the jets or ports. It simply allows the venturi vacuum to have a greater effect on pulling up the slide, overcoming the slide spring that is constantly pushing down on the slide. I can see if in riding the bike, the rider has a greater tendency to ride in WFO mode. That would effect the mileage. But then riding WFO always wrecks your gas mileage. Can somedoby take my dumbazz to school? Inquiring minds want to know, and so do I. Thanks, CA Mark --- In DSN_klr650@yahoogroups.com, "kcuf_oohay_666" wrote:
> If you drill out the carb slide hole to 1/8" you will get over > 100mph. but you will lose 3-5 miles per gallon of fuel. If you plan > on going that fast I suggest you get a forkbrace and more street > oriented tires > > > --- In DSN_klr650@yahoogroups.com, "Ron Klimoff" > wrote: > > Hey Fellas, I'm just curious, what the fastest you guys have gone
on
> > the KLR650? I had it wide open today, and I barely got to
100mph.
> > Mine is completely stock. I still thought I would see around 110- > 115. > > I know a bigger front sprocket will increase the speed, I think
I
> am > > gonna go get one. It did have a full tank of gas, and I weigh
250.
> > Maybe I should go on a diet??? > > > > Thanks, > > > > Ron K > > A16

hens_p
Posts: 451
Joined: Thu Dec 06, 2001 6:27 am

top speed

Post by hens_p » Wed Apr 16, 2003 5:31 am

--- In DSN_klr650@yahoogroups.com, "Ron Klimoff" wrote:
> Hey Fellas, I'm just curious, what the fastest you guys have gone on > the KLR650? I had it wide open today, and I barely got to 100mph. > Mine is completely stock.
My stocker got all the way up to 99 MPH (measured with GPS). I couldn't get it into the triple digits. Pat

klr6501995
Posts: 629
Joined: Wed Sep 11, 2002 3:39 am

top speed

Post by klr6501995 » Wed Apr 16, 2003 5:47 am

I'm just the average dolt myself. I have never understood how drilling the slide hole will effect gas milage. I can see gas milage dropping if I'm jerkiing the throttle around to take advantage of the quicker response. Cruising steady would not have a dropping effect. --- In DSN_klr650@yahoogroups.com, "dumbazz650" wrote:
> I am at least as ignorant as the average dolt, maybe even the above > average dolt, but I don't see how drilling out the slide hole to 1/8 > of an inch effects top speed or gas mileage. > > I was led to believe that this is a vacuum feed port that causes the > slide to respond quicker to throttle openings, allowing the bike to > rev up quicker. It effects neither total airflow, nor total fuel > flow through any of the jets or ports. It simply allows the venturi > vacuum to have a greater effect on pulling up the slide, overcoming > the slide spring that is constantly pushing down on the slide. > > I can see if in riding the bike, the rider has a greater tendency to > ride in WFO mode. That would effect the mileage. But then riding WFO > always wrecks your gas mileage. > > Can somedoby take my dumbazz to school? > > Inquiring minds want to know, and so do I. > > Thanks, > CA Mark > > --- In DSN_klr650@yahoogroups.com, "kcuf_oohay_666" > wrote: > > If you drill out the carb slide hole to 1/8" you will get over > > 100mph. but you will lose 3-5 miles per gallon of fuel. If you
plan
> > on going that fast I suggest you get a forkbrace and more street > > oriented tires > > > > > > --- In DSN_klr650@yahoogroups.com, "Ron Klimoff" > > wrote: > > > Hey Fellas, I'm just curious, what the fastest you guys have
gone
> on > > > the KLR650? I had it wide open today, and I barely got to > 100mph. > > > Mine is completely stock. I still thought I would see around
110-
> > 115. > > > I know a bigger front sprocket will increase the speed, I
think
> I > > am > > > gonna go get one. It did have a full tank of gas, and I weigh > 250. > > > Maybe I should go on a diet??? > > > > > > Thanks, > > > > > > Ron K > > > A16

Pete Denzer
Posts: 1
Joined: Mon Mar 12, 2001 10:46 pm

top speed

Post by Pete Denzer » Wed Apr 16, 2003 7:17 am

Drilling out the slide is not the only change guys make during a Dynojet or other carb kit installation. The larger slide hole does allow the slide to move more quickly, giving better response. But it is the rejettting and other intake mods that affect the top speed. On the long straight section of road I use for tuning I found that I could get up to 100 mph indicated stock, while getting about 60 mpg average. After Dynojet kit and K&N filter was installed and airbox lid was removed, bike got up to 105 indicated and about 52 mpg on the same roads, same driving style. The top-end accelleration was noticably improved as well, giving me better high-gear passing over 70 mph. Warmup time was also reduced. You pays your money and takes your choice.

Zachariah Mully
Posts: 1897
Joined: Fri Apr 28, 2000 7:50 am

top speed

Post by Zachariah Mully » Wed Apr 16, 2003 9:24 am

On Tue, 2003-04-15 at 22:30, Ron Klimoff wrote:
> Hey Fellas, I'm just curious, what the fastest you guys have gone on > the KLR650? I had it wide open today, and I barely got to 100mph. > Mine is completely stock. I still thought I would see around 110-115. > I know a bigger front sprocket will increase the speed, I think I am > gonna go get one. It did have a full tank of gas, and I weigh 250. > Maybe I should go on a diet???
On Sunday, Thor, Richard and I went out for a little ride down in Southern Maryland along the Potomac river (rt. 224, if you're interested) and I ran WFO down one long desolate stretch of road that I use for testing top speeds. I hit 95mph indicated and the last time I had checked my speedo with GPS it was +5-7mph off at 75mph, so that might have been a little over 100mph. This was with K270's, a twinair filter, DJ kit (e-clip second notch from top), LPD, 15/43 gearing and modified air box. I weigh 240lbs and am 6'4" though at that point I was laying on the tank. Aerodynamics is probably the biggest factor at the 100mph+ speeds. With barkbuster flags, a high fender and lower fork leg guards there is a lot to push through the air with only 35HP. I very rarely need that kind of speed, as long as I can accelerate upto 80mph reasonable quickly, I am safe to merge on our miserable freeways around here. Even my Concours with 85+HP will only hit 130mph indicated. Z DC A5X A12X

Devon Jarvis
Posts: 2322
Joined: Thu May 10, 2001 9:41 am

top speed

Post by Devon Jarvis » Wed Apr 16, 2003 10:06 am

klr6501995 wrote:
> I have never understood how > drilling the slide hole will effect gas milage. I can see gas milage > dropping if I'm jerkiing the throttle around to take advantage of the > quicker response.
I think you understand it just fine. One of the reasons you get lower mileage with a Mikuni carb is the INSTANT throttle response really encourages riding like a jackass. I'm putting the stock carb, with stock jetting back on the bike. Devon

Thor Lancelot Simon
Posts: 529
Joined: Sun Oct 13, 2002 5:32 pm

top speed

Post by Thor Lancelot Simon » Wed Apr 16, 2003 11:34 am

On Wed, Apr 16, 2003 at 10:24:12AM -0400, Zachariah Mully wrote:
> On Tue, 2003-04-15 at 22:30, Ron Klimoff wrote: > > Hey Fellas, I'm just curious, what the fastest you guys have gone on > > the KLR650? I had it wide open today, and I barely got to 100mph. > > Mine is completely stock. I still thought I would see around 110-115. > > I know a bigger front sprocket will increase the speed, I think I am > > gonna go get one. It did have a full tank of gas, and I weigh 250. > > Maybe I should go on a diet??? > > On Sunday, Thor, Richard and I went out for a little ride down in > Southern Maryland along the Potomac river (rt. 224, if you're > interested) and I ran WFO down one long desolate stretch of road that I > use for testing top speeds. I hit 95mph indicated and the last time I > had checked my speedo with GPS it was +5-7mph off at 75mph, so that > might have been a little over 100mph. This was with K270's, a twinair
Heh! I was wondering what you were up to -- but then again, I didn't know how long that straightaway was. :-) FWIW, I think I just barely started to catch up to you before you slowed down. My speedometer was somewhere in the 92-93MPH range. My bike's dead stock from a performance point of view (and not far off any other way). On the way home up I-95, I confirmed a couple of times that I'd need a long, straight _downhill_ to even think of getting my bike above 100MPH indicated; I don't know how far my speedo's off, nor which way. What a nicely banked set of on-ramps you have by your place, by the way. Kinda caught me by surprise after the slow street riding to that point... if I tried that around here I'd probably end up hitting a 2-foot pothole or the rear end of some bozo in a K-car parked at a Yield sign. So that was the bit of fast riding I remember from Sunday just because, well, I'd love to have some nice twisty ramps like that here. :-) Thor

HAULNA4814@AOL.COM
Posts: 54
Joined: Wed Feb 05, 2003 12:36 pm

top speed

Post by HAULNA4814@AOL.COM » Wed Apr 16, 2003 2:14 pm

Years ago on the A-1,was drafting a 110mph Peterbuilt (a few times I thought I could pass him) stepping out of the draft was like pulling a rip cord. With riderat 260 lbs, med. load of gear and kissing the tank anything around 100 would be good. With the winds here in Oklahoma you will need someone to help pull the seat cover out of your ass !! Have a safe day riders JD-OKLAHOMA A-1 A-17 TT600 KX500 [Non-text portions of this message have been removed]

garalpar@webtv.net
Posts: 68
Joined: Fri Nov 07, 2003 11:02 pm

top speed

Post by garalpar@webtv.net » Sat Feb 28, 2004 6:10 pm

Hi , with a 16 tooth front sprocket and stock everything except a k+n air filter. All I could get up to was 90 mph and 87 mph on the GPS. Is that it????? and it didn`t want to rev much higher than 6,200 rpm`s in top gear.Revs higher in other gears. Bike runs great at all speeds and I don`t really want to go faster than 80 mph on this bike anyway. Just thought it would have a higher top speed . GARY PARECE ,98 Concours 101k , 2001 VFR 4K mi.,2002 Suzuki DRZ 400 E, 2001 KLR 650 1K

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