[[xrlug] motorcycle tow behind]
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klr650 : drilling the carb slide
What is Mr. Saline opinion on this ? Is this ok for
my stock A19, no " major "mods,beside cosmetics.
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klr650 : drilling the carb slide
On Sat, 23 Feb 2008 08:43:03 -0800 (PST) Luc Legrain
writes:
<><><><><><><><> <><><><><><><><> Luc, I don't think I have enough information about how or where you ride to give an opinion about slide drilling. I can tell you that I haven't done it to mine. Mine has some mods, I guess others have to be the judge if they are major or not. I suppose the trade off for fuel economy that folks talk about would be enough to put me off on it. I'd also guess that unless a guy was an 8 or 9 tenths rider it wouldn't make much of a difference. I'm still using the original stock brake pads at 23,000 plus miles. Maybe the folks that wear out a set of front pads in 5,000 miles would find it useful. I think you can get a diaphragm and slide at the Harley dealer for about $50. So it might not be a real expensive mod and it surely would be reversible. 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> What is Mr. Saline opinion on this ? Is this ok for > my stock A19, no " major "mods,beside cosmetics.
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klr650 : drilling the carb slide
On Sat, Feb 23, 2008 at 10:03:55PM -0700, Jeff Saline wrote:
TPI has 'em for $39. It's reversable anyway, you can just fill the hole with JB Weld and redrill it to the stock size. Michael -- "It ain't those parts of the Bible that I can't understand that bother me, it is the parts that I do understand." -- Mark Twain San Francisco, CA> I think you can get a diaphragm and slide at the Harley dealer for about > $50. So it might not be a real expensive mod and it surely would be > reversible.
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klr650 : drilling the carb slide
Drilling the carburetor slide vacuum port (not the hole for the main jet needle) works best when you also use a lighter slide spring such as the one supplied in a DynoJet kit. You may, however, contact DynoJet and order the spring separately if you haven't already purchased a complete kit.
Drilling the vacuum port to 7/64" (1/8" for larger motors with more vacuum) will generally improve throttle response but will NOT measurably reduce your fuel economy -- your right wrist has a greater impact on fuel economy than a relatively minor modification such as a drilled vacuum slide.
Drill your slide (either 7/64" or 1/8" is okay), install a lighter slide spring if you wish, and open up the air fuel mixture needle by 1/2 to 1 turn. Your bike will run much better.
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klr650 : drilling the carb slide
On Sun, 24 Feb 2008 09:18:59 -0500 (GMT-05:00) TC
writes:
<><><><><><><><><><> <><><><><><><><><><> TC, Your last sentence has my interest. Could you be a bit more specific as to the definition of "run much better"? An example or two might be helpful for me to understand the benefits of drilling a slide. I suppose having a little more pep when accelerating would give some folks the nudge to twist the wrist a bit more in other riding conditions too. Maybe that's where the fuel economy drops show up. I'm sure if you open a properly tuned air fuel mixture screw (by your 1/2 to 1 turn) that will drop fuel economy. 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> Drilling the carburetor slide vacuum port (not the hole for the main > jet needle) works best when you also use a lighter slide spring such > as the one supplied in a DynoJet kit. You may, however, contact > DynoJet and order the spring separately if you haven't already > purchased a complete kit. > > Drilling the vacuum port to 7/64" (1/8" for larger motors with more > vacuum) will generally improve throttle response but will NOT > measurably reduce your fuel economy -- your right wrist has a > greater impact on fuel economy than a relatively minor modification > such as a drilled vacuum slide. > > Drill your slide (either 7/64" or 1/8" is okay), install a lighter > slide spring if you wish, and open up the air fuel mixture needle by > 1/2 to 1 turn. Your bike will run much better.
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klr650 : drilling the carb slide
Jeff,
I drilled the slide out to 1/8" on my '95. What it took care of for
me was
a slight lag at lower rpms when you twisted the throttle. I can't
tell any
difference with the middle and upper rpms.
Most of my riding is off road. I'd run into places that you needed
to power
lighten,(on most dirt bikes it would be a wheelie), the front end to
help
over a small tree or rocks. With the KLR in stock form, it would
take a
fraction of a second after twisting the throttle for the engine to
start
powering up. After the mod, there's no noticeable lag, so you don't
have to
preplan as much.
The only mods that I've done is increased the pilot screw to about 1
3/4
turns and the slide mod. I've also changed the gearing to 15/47 for
off-road and use 16/47 for extended on-road riding. I can't tell any
difference in MPG, 45-52, unless I'm in twisties and really on/off
the
throttle quite a bit. I don't know if that is due to the idle
mixture
adjustment or the slide drilling, since both were done at the same
time.
GregM
-----Original Message-----
From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com]
On
Behalf Of Jeff Saline
Sent: Sunday, February 24, 2008 8:29 AM
To: tch@...
Cc: DSN_klr650@yahoogroups.com
Subject: Re: [DSN_KLR650] KLR650 : Drilling the carb slide
On Sun, 24 Feb 2008 09:18:59 -0500 (GMT-05:00) TC
writes:
main> Drilling the carburetor slide vacuum port (not the hole for the
such> jet needle) works best when you also use a lighter slide spring
greater> as the one supplied in a DynoJet kit. You may, however, contact > DynoJet and order the spring separately if you haven't already > purchased a complete kit. > > Drilling the vacuum port to 7/64" (1/8" for larger motors with more > vacuum) will generally improve throttle response but will NOT > measurably reduce your fuel economy -- your right wrist has a
a> impact on fuel economy than a relatively minor modification such as
by> drilled vacuum slide. > > Drill your slide (either 7/64" or 1/8" is okay), install a lighter > slide spring if you wish, and open up the air fuel mixture needle
<><><><><><><><><><> <><><><><><><><><><> TC, Your last sentence has my interest. Could you be a bit more specific as to the definition of "run much better"? An example or two might be helpful for me to understand the benefits of drilling a slide. I suppose having a little more pep when accelerating would give some folks the nudge to twist the wrist a bit more in other riding conditions too. Maybe that's where the fuel economy drops show up. I'm sure if you open a properly tuned air fuel mixture screw (by your 1/2 to 1 turn) that will drop fuel economy. 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 List sponsored by Dual Sport News at: www.dualsportnews.com List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html Member Map at: http://www.frappr.com/dsnklr650 Yahoo! Groups Links ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs> 1/2 to 1 turn. Your bike will run much better.
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[[xrlug] motorcycle tow behind]
I think I got my groups confused......
E
-------- Original Message --------
Subject: [xrlug] Motorcycle tow behind
Date: Fri, 22 Feb 2008 16:18:25 -0000
From: Eric Foster
To: xrlug@yahoogroups.com
Dunno why my last post didn't go through. Someone was looking for a
trailer. This one may suit your needs better?
www.trailtail.com
Hopefully I have the right group. Things are a bit scrambled here right
now.
Happy trails!
E
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klr650 : drilling the carb slide
On Sun, 24 Feb 2008 08:53:48 -0800 (PST) GMac999
writes:
<><><><><><><><><><><> <><><><><><><><><><><> Greg, Thanks for another very good explanation. First it was a tire evaluation and now it's performance based on an internal carb modification. You're on a roll. : ) It sure looks like you scored well with drilling the slide. I'm running a 14/46 combo in the dirt. Your 15/47 is about mid-point between my 14/46 and 15/46 combos. Looks like it would be pretty comparable to a 14/44 combo. I know it's a significant improvement compared to the stock 15/43 combo. I bet you'd really like a 14/47 combo in the dirt. It might be a bit slow in twisties. I sure appreciate your detailed and complete comments. 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> Jeff, > > I drilled the slide out to 1/8" on my '95. What it took care of for > me was > a slight lag at lower rpms when you twisted the throttle. I can't > tell any > difference with the middle and upper rpms. > > SNIP > > GregM
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klr650 : drilling the carb slide
Jeff,
I have the 14/47 combo also. You're right, it's great in the tight
stuff.
I'd even considered the 13/47, but couldn't locate one for the two
bolt
earlier models. I use it when it's a weekend of mostly off road
riding.
When I have to run short commutes, less than 150 miles, I'll just run
the
15/47 as an all around. Longer runs, 4 -500 miles, I go to the
16/47.
GregM
-----Original Message-----
From: Jeff Saline [mailto:salinej1@...]
Sent: Sunday, February 24, 2008 4:38 PM
To: gmac999@...
Cc: DSN_klr650@yahoogroups.com
Subject: Re: [DSN_KLR650] KLR650 : Drilling the carb slide
On Sun, 24 Feb 2008 08:53:48 -0800 (PST) GMac999
writes:
for> Jeff, > > I drilled the slide out to 1/8" on my '95. What it took care of
<><><><><><><><><><><> <><><><><><><><><><><> Greg, Thanks for another very good explanation. First it was a tire evaluation and now it's performance based on an internal carb modification. You're on a roll. : ) It sure looks like you scored well with drilling the slide. I'm running a 14/46 combo in the dirt. Your 15/47 is about mid-point between my 14/46 and 15/46 combos. Looks like it would be pretty comparable to a 14/44 combo. I know it's a significant improvement compared to the stock 15/43 combo. I bet you'd really like a 14/47 combo in the dirt. It might be a bit slow in twisties. I sure appreciate your detailed and complete comments. 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 ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs> me was a slight lag at lower rpms when you twisted the throttle. I > can't tell any difference with the middle and upper rpms. > > SNIP > > GregM
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klr650 : drilling the carb slide
Hi Jeff, wish I could take credit for the slide write up but it comes from a different Greg, Think I might add the slide mod to mine while it's apart though...have a great evening....the "tired" after busy weekend Greg
Jeff Saline wrote: On Sun, 24 Feb 2008 08:53:48 -0800 (PST) GMac999
writes:
<><><><><><><><><><><> <><><><><><><><><><><> Greg, Thanks for another very good explanation. First it was a tire evaluation and now it's performance based on an internal carb modification. You're on a roll. : ) It sure looks like you scored well with drilling the slide. I'm running a 14/46 combo in the dirt. Your 15/47 is about mid-point between my 14/46 and 15/46 combos. Looks like it would be pretty comparable to a 14/44 combo. I know it's a significant improvement compared to the stock 15/43 combo. I bet you'd really like a 14/47 combo in the dirt. It might be a bit slow in twisties. I sure appreciate your detailed and complete comments. 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 --------------------------------- Looking for the perfect gift? Give the gift of Flickr! [Non-text portions of this message have been removed]> Jeff, > > I drilled the slide out to 1/8" on my '95. What it took care of for > me was > a slight lag at lower rpms when you twisted the throttle. I can't > tell any > difference with the middle and upper rpms. > > SNIP > > GregM
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