[dsn_klr650] need help

[Jeff Saline]

On Sat, 26 Apr 2008 01:21:24 -0000 "Ross Lindberg" writes:

> I heard something on the posts here about putting a couple of #4 > washers under the needle. What exactly is this supposed to do, and > how > involved is it? > > I have already backed the idle mixture screw out and removed the > airbox > snorkle. > > Ross Lindberg > Fertile, MN

<><><><><><><><><><> <><><><><><><><><><> Ross, Basically you are lifting the needle which will allow a bit more fuel into the mixture. That "extra" fuel if in the correct amount and at the correct time can give you a bit more power. See http://www.klr650.net/forums/showthread.php?t=41112&highlight=22+cent for an explanation. They call it the 22 cent mod as that's about what it costs for a washer. Be careful if you do this. Pay attention to how the carb and needle are correctly assembled. Do not do any other mods when you do this so you can compare the results. 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

[chad strohmayer]

Jeff and company, after doing this mod have you noticed the effect on gas mileage? i reckon the mpg went down but how much? thanx Chad ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

[Jeff Saline]

On Sun, 27 Apr 2008 07:23:49 -0700 (PDT) chad strohmayer writes:

> Jeff and company, > after doing this mod have you noticed the effect on > gas mileage? > i reckon the mpg went down but how much? > > thanx > > Chad

<><><><><><><><><><> <><><><><><><><><><> Chad, I'm guessing this is about shimming the needle but don't remember for sure. I've seen a lot of posts on a few lists in the last few days about carbs... Anyway, I have a stock carb on my bike. No first hand experience with needle shimming, airbox mods etc. I prefer the stock set up for my bike. Sorry I can't be of help. 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

[wayne_blckbrn]

I'M ABOUT TO REPLACE THE DIAPHRAGM AND SLIDE ON THE MULE. MY QUESTION IS, IF I DRILL THE SLIDE HOLE JUST A BIT BIGGER WHAT WOULD HAPPEN. ALSO, WHAT WOULD BE THE BEST THING TO USE TO HOLD THE DIAPHRAGM IN PLACE DURING ASSEMBLE.

[Jeff Saline]

On Tue, 16 Dec 2008 22:36:29 -0000 "wayne_blckbrn" writes:

> I'M ABOUT TO REPLACE THE DIAPHRAGM AND SLIDE ON THE MULE. > MY QUESTION IS, IF I DRILL THE SLIDE HOLE JUST A BIT BIGGER > WHAT WOULD HAPPEN. > ALSO, WHAT WOULD BE THE BEST THING TO USE TO HOLD THE > DIAPHRAGM IN PLACE DURING ASSEMBLE.

<><><><><><><><><> <><><><><><><><><> Wayne, I think the slide will rise just a tad faster with a larger hole. That would mean your fuel mixture would get just a tad richer quicker. But at wide open throttle I don't think it would make a difference. On a new diaphragm I think it would probably hold in place by itself. But if I was having trouble I'd probably use a very small dab of grease to help hold it in place. 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 ____________________________________________________________ Save $15 on Flowers and Gifts from FTD! Shop now at http://offers.juno.com/TGL1141/?u=http://www.ftd.com/17007

[Wayne Blackburn]

THANKS JEFF, WOULD THAT INCREASE THROTTLE RESPONSE. AND WHAT TYPE OF GREASE.

--- On Tue, 12/16/08, Jeff Saline wrote: From: Jeff Saline Subject: Re: [DSN_KLR650] Carb Question To: wayne_blckbrn@... Cc: DSN_KLR650@yahoogroups.com Date: Tuesday, December 16, 2008, 6:30 PM On Tue, 16 Dec 2008 22:36:29 -0000 "wayne_blckbrn" writes: > I'M ABOUT TO REPLACE THE DIAPHRAGM AND SLIDE ON THE MULE. > MY QUESTION IS, IF I DRILL THE SLIDE HOLE JUST A BIT BIGGER > WHAT WOULD HAPPEN. > ALSO, WHAT WOULD BE THE BEST THING TO USE TO HOLD THE > DIAPHRAGM IN PLACE DURING ASSEMBLE. <><><><><><> <><><> <><><><><><> <><><> Wayne, I think the slide will rise just a tad faster with a larger hole. That would mean your fuel mixture would get just a tad richer quicker. But at wide open throttle I don't think it would make a difference. On a new diaphragm I think it would probably hold in place by itself. But if I was having trouble I'd probably use a very small dab of grease to help hold it in place. 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 ____________ _________ _________ _________ _________ _________ _ Save $15 on Flowers and Gifts from FTD! Shop now at http://offers. juno.com/ TGL1141/? u=http:// www.ftd.com/ 17007 [Non-text portions of this message have been removed]

[Jeff Saline]

On Tue, 16 Dec 2008 15:45:12 -0800 (PST) Wayne Blackburn writes:

> THANKS JEFF, > WOULD THAT INCREASE THROTTLE RESPONSE. > AND WHAT TYPE OF GREASE.

<><><><><><><><> <><><><><><><><> Wayne, I've been told that will improve throttle response which makes sense since if the slide lifts faster you get more fuel sooner which increases engine rpm. I don't have any personal experience with drilling a slide although I know lots of folks on this list have done it. I'd probably use a white lithium grease since that's kind of sticky and I have some handy. Wheel bearing grease would also probably work. Whatever you use I suggest you use it sparingly. I'm thinking with a little care you'll be able to install the diaphragm without any additive. 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 ____________________________________________________________ Click for online loan, fast & no lender fee, approval today http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2P5ssJ4WH6gc1qyMlPKEebPu4bVUIN50H6vttFQYDIFOGvK/

[Greg May]

Hi Wayne, I drilled the carb slide (I used the recommended size, I'll check it if you don't have the size info), removed the plug over the mixture screw and adjusted it out from the factory setting of about 3/4 of a turn to 1 3/4 turns, shimmed the needle with one #4 brass washer that was .008" and removed the little defuser that mounts by the entry of the air box on my KLR last winter. Sadly I only managed several thousand km's over the summer but here is what the results semed like to me. The popping on over run disappeared so the mixture screw was way too lean, throttle response by the seat of the pants did seems better, a bit of a double edged sword because with stock, read too tall gearing on tight trails where I had to pick my way through in 1st gear it was almost too quick at times, any other time it was fine so a gearing change would be the cure. Gas mileage seemed unchanged from stock but I want to add a second .008" washer this winter, it seems sometimes that I could feel a slight surge at a steady speed at around 100 kph so I suspect it is a touch lean in the mid range. Anyway hope this helps.....have a great evening.....Greg

--- On Tue, 12/16/08, wayne_blckbrn wrote: From: wayne_blckbrn Subject: [DSN_KLR650] Carb Question To: DSN_KLR650@yahoogroups.com Received: Tuesday, December 16, 2008, 6:36 PM I'M ABOUT TO REPLACE THE DIAPHRAGM AND SLIDE ON THE MULE. MY QUESTION IS, IF I DRILL THE SLIDE HOLE JUST A BIT BIGGER WHAT WOULD HAPPEN. ALSO, WHAT WOULD BE THE BEST THING TO USE TO HOLD THE DIAPHRAGM IN PLACE DURING ASSEMBLE. __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now at http://ca.toolbar.yahoo.com [Non-text portions of this message have been removed]

[GMac999]

Wayne, I drilled mine to 1/8 inch. It raises the slide a little faster. At low rpms, it gives it a faster response to the throttle. I couldn't tell a difference at mid to upper rpms. Later I also added a .020 flat washer under the needle. I was having a slight surging between 3200 and 4200 rpms. That richened the mixture slightly and did away with the surge. With both mods, checking the gas mileage, I dropped only 1mpg. That could have been my riding style, since it was peppier at lower rpms, I tended to twist it a little more. GregM -----Original Message----- From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of Jeff Saline Sent: Tuesday, December 16, 2008 5:30 PM To: wayne_blckbrn@... Cc: DSN_KLR650@yahoogroups.com Subject: Re: [DSN_KLR650] Carb Question On Tue, 16 Dec 2008 22:36:29 -0000 "wayne_blckbrn" writes:

> I'M ABOUT TO REPLACE THE DIAPHRAGM AND SLIDE ON THE MULE. > MY QUESTION IS, IF I DRILL THE SLIDE HOLE JUST A BIT BIGGER WHAT WOULD > HAPPEN. > ALSO, WHAT WOULD BE THE BEST THING TO USE TO HOLD THE DIAPHRAGM IN > PLACE DURING ASSEMBLE.

<><><><><><><><><> <><><><><><><><><> Wayne, I think the slide will rise just a tad faster with a larger hole. That would mean your fuel mixture would get just a tad richer quicker. But at wide open throttle I don't think it would make a difference. On a new diaphragm I think it would probably hold in place by itself. But if I was having trouble I'd probably use a very small dab of grease to help hold it in place. 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 ____________________________________________________________ Save $15 on Flowers and Gifts from FTD! Shop now at http://offers.juno.com/TGL1141/?u=http://www.ftd.com/17007 ------------------------------------ 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/dsnklr650Yahoo! Groups Links

[roncriswell@sbcglobal.net]

I drilled my slide as per Dyna jet instructions with the bit they supplied and got a quicker throttle response. Criswell

On Dec 16, 2008, at 5:50 PM, Jeff Saline wrote: > On Tue, 16 Dec 2008 15:45:12 -0800 (PST) Wayne Blackburn > writes: > > THANKS JEFF, > > WOULD THAT INCREASE THROTTLE RESPONSE. > > AND WHAT TYPE OF GREASE. > <><><><><><><><> > <><><><><><><><> > > Wayne, > > I've been told that will improve throttle response which makes sense > since if the slide lifts faster you get more fuel sooner which > increases > engine rpm. I don't have any personal experience with drilling a slide > although I know lots of folks on this list have done it. > > I'd probably use a white lithium grease since that's kind of sticky > and I > have some handy. Wheel bearing grease would also probably work. > Whatever you use I suggest you use it sparingly. I'm thinking with a > little care you'll be able to install the diaphragm without any > additive. > > 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 > __________________________________________________________ > Click for online loan, fast & no lender fee, approval today > http://thirdpartyoffers.juno.com/TGL2141/fc/ > PnY6rw2P5ssJ4WH6gc1qyMlPKEebPu4bVUIN50H6vttFQYDIFOGvK/ > > [Non-text portions of this message have been removed]