carb

[Jeff Saline]

#ygrps-yiv-421929504 .ygrps-yiv-421929504ygrp-photo-title { CLEAR:both;FONT-SIZE:smaller;OVERFLOW:hidden;WIDTH:75px;HEIGHT:15px;TEXT-ALIGN:center;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504ygrp-photo { BORDER-RIGHT:black 1px solid;BACKGROUND-POSITION:center 50%;BORDER-TOP:black 1px solid;BORDER-LEFT:black 1px solid;WIDTH:62px;BORDER-BOTTOM:black 1px solid;BACKGROUND-REPEAT:no-repeat;HEIGHT:62px;BACKGROUND-COLOR:white;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504photo-title A { TEXT-DECORATION:none;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504photo-title A:active { TEXT-DECORATION:none;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504photo-title A:hover { TEXT-DECORATION:none;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504photo-title A:visited { TEXT-DECORATION:none;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504attach-table DIV.ygrps-yiv-421929504attach-row { CLEAR:both;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504attach-table DIV.ygrps-yiv-421929504attach-row DIV { FLOAT:left;} #ygrps-yiv-421929504 P { CLEAR:both;PADDING-RIGHT:0px;PADDING-LEFT:0px;PADDING-BOTTOM:3px;OVERFLOW:hidden;PADDING-TOP:15px;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504ygrp-file { WIDTH:30px;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504attach-table DIV.ygrps-yiv-421929504attach-row DIV DIV A { TEXT-DECORATION:none;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504attach-table DIV.ygrps-yiv-421929504attach-row DIV DIV SPAN { FONT-WEIGHT:normal;} #ygrps-yiv-421929504 DIV.ygrps-yiv-421929504ygrp-file-title { FONT-WEIGHT:bold;} #ygrps-yiv-421929504 DIV { MARGIN:0px;} Mark,   I took a quick look in my Clymer Manual and it looks like it's just a boss not used on in the KLR application in the states.   I think but I'm not sure that it might be used down under as a carb heater running coolant through the carb.   I don't see any reason you couldn't cap it but don't see any point in capping it either.   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 <><><><><><><> <><><><><><><> On Sun, 6 Jun 2010 16:15:49 -0700 (PDT) mark ward writes:   Hey On the right side of the carb, near Bottom Left, is a hole (if english) near the Idle screw head, about 3/8th's of a inch. What is it for?? I had a mud wasp nest in mine. Can I cap it?   (I'm not ready to rebuild the carb, YET, so I ask.)   Mark (W. Mi.) . ____________________________________________________________ [b]Discover this Diet Secret[/b] Learn how one person lost 12 pounds in 30 days consumershealthreports.com

[Mike Huber]

My 06 with 25k smiles on the clock has the hiccups !!!!  As I accelerate through 3000 rpms it has a slight hiccup or miss ...It will have the same miss in   all gears as it hits 3000 rpm ...If I shift it above 3000 rpm I don't notice it...I'm running a K&N filter and a Dynajet kit with a after market pipe and   always get no less than 50 mpg ...I add Seafoam to the gas about every 3rd fillup .....Is this a carb adjustment ,pilot jet, or maybe a   diaphram problem ???    Thanx Mike Huber 06 FullyFarkledFrog Carlsbad, NM

[Jeff Khoury]

#ygrps-yiv-499254456 p {margin:0;}Since it's happening at a higher RPM, it's definitely not the pilot.  The pilot is only significant from idle to 1/8 throttle or so.  The problem will lie in the size of your main jet and the position of the needle. With carbs it's all about throttle position, not so much RPM.  Since you have the K&N, aftermarket pipe and the DynaJet, I would look at a mixture problem. In my experience, the DynaJet needle's taper is a little bit too aggressive, which leads me to think you may be hitting a spot where it's a little too rich.  Try this: Next time you ride it, pay attention to your "hiccup".  If it's not as noticeable when the bike's cold, but gets worse as the bike heats up, then drop your needle a notch and see if that clears it up.  If it's really bad when it's cold, but gets better as it gets warmer, raise it a notch.  If you adjust the needle and it moves the point of the hiccup, pay attention to that as well. I fiddled forever with the DynaJet needles in my old Seca II, and ended up going back to the stock ones.  I never could get it to run smooth through the whole band with the DynaJet needles in there.  The taper was just too aggressive. -Jeff Khoury

----- Original Message ----- From: "Mike Huber" To: "dsn klr650" dsn_klr650@yahoogroups.com> Sent: Sunday, June 6, 2010 9:27:48 PM GMT -08:00 US/Canada Pacific Subject: [DSN_KLR650] 06 with the hiccups !!!   My 06 with 25k smiles on the clock has the hiccups !!!!  As I accelerate through 3000 rpms it has a slight hiccup or miss ...It will have the same miss in   all gears as it hits 3000 rpm ...If I shift it above 3000 rpm I don't notice it...I'm running a K&N filter and a Dynajet kit with a after market pipe and   always get no less than 50 mpg ...I add Seafoam to the gas about every 3rd fillup .....Is this a carb adjustment ,pilot jet, or maybe a   diaphram problem ???    Thanx Mike Huber 06 FullyFarkledFrog Carlsbad, NM

[mark ward]

[Jeff Khoury]

#ygrps-yiv-1876367879 p {margin:0;}I tried to keep it as simple as possible.  Carbs are a combination of art and science and I've done a LOT of research and direct experimentation.  I have a part of my personality that tends to delve very deeply into a subject when it interests me, sometimes going way overboard.  For instance, when I was working on those carbs on the Seca II, I not only looked at carburetor theory but the chemistry behind it because I wanted to understand not only the basics, but how variations in barometric pressure/altitude, fuel formulation and temperature would affect my performance. After learning all that stuff I would step back and say "I went through all that to fix a $500.00 18 year old bike!?!? It's just my particular form of OCD I guess... -Jeff Khoury

----- Original Message ----- From: "mark ward" To: "Jeff Khoury" , "Mike Huber" Cc: "dsn klr650" dsn_klr650@yahoogroups.com> Sent: Monday, June 7, 2010 8:43:39 AM GMT -08:00 US/Canada Pacific Subject: Re: [DSN_KLR650] 06 with the hiccups !!! It's all this, itty bitty, detailed, rambling, That makes Me, love the net espeacially [b]this sight[/b].   I don't need this, [b]YET!,[/b] But, Great simpliefying Jeff. Thanks mark (W. Mi.) [b]From:[/b] Jeff Khoury [b]To:[/b] Mike Huber [b]Cc:[/b] dsn klr650 dsn_klr650@yahoogroups.com> [b]Sent:[/b] Mon, June 7, 2010 11:35:50 AM [b]Subject:[/b] Re: [DSN_KLR650] 06 with the hiccups !!!   Since it's happening at a higher RPM, it's definitely not the pilot.  The pilot is only significant from idle to 1/8 throttle or so.  The problem will lie in the size of your main jet and the position of the needle. With carbs it's all about throttle position, not so much RPM.  Since you have the K&N, aftermarket pipe and the DynaJet, I would look at a mixture problem. In my experience, the DynaJet needle's taper is a little bit too aggressive, which leads me to think you may be hitting a spot where it's a little too rich.  Try this: Next time you ride it, pay attention to your "hiccup".  If it's not as noticeable when the bike's cold, but gets worse as the bike heats up, then drop your needle a notch and see if that clears it up.  If it's really bad when it's cold, but gets better as it gets warmer, raise it a notch.  If you adjust the needle and it moves the point of the hiccup, pay attention to that as well. I fiddled forever with the DynaJet needles in my old Seca II, and ended up going back to the stock ones.  I never could get it to run smooth through the whole band with the DynaJet needles in there.  The taper was just too aggressive. -Jeff Khoury ----- Original Message ----- From: "Mike Huber" To: "dsn klr650" ups.com> Sent: Sunday, June 6, 2010 9:27:48 PM GMT -08:00 US/Canada Pacific Subject: [DSN_KLR650] 06 with the hiccups !!!   My 06 with 25k smiles on the clock has the hiccups !!!!  As I accelerate through 3000 rpms it has a slight hiccup or miss ...It will have the same miss in   all gears as it hits 3000 rpm ...If I shift it above 3000 rpm I don't notice it...I'm running a K&N filter and a Dynajet kit with a after market pipe and   always get no less than 50 mpg ...I add Seafoam to the gas about every 3rd fillup .....Is this a carb adjustment ,pilot jet, or maybe a   diaphram problem ???    Thanx Mike Huber 06 FullyFarkledFrog Carlsbad, NM

[Mike Huber]

Jeff....Thanx for the info on my problem....I haven't noticed the hiccup lately as the temps have been in the 100's .... When I rode to work this morning    it was still in the 80's and it wasn't giving me any problems....It seems that I notice it more when it's cold, so WHEN and IF It ever cools down around    here I'll try and raise it a notch and see if it makes a difference....I've heard that some guys use a KLX needle ....How does it compare to the Dynajet    needle ?? And how does the .22 cent mod and the drilled slide mod work ???  I like the gas mileage but I've heard that some of these mods can effect    it ...     Mike Huber   06 FullyFarkledFrog   Carlsbad, NM where 100* is normal !!!           Date: Mon, 7 Jun 2010 08:35:50 -0700 From: jeff@... To: minoman59@... CC: dsn_klr650@yahoogroups.com Subject: Re: [DSN_KLR650] 06 with the hiccups !!! #ygrps-yiv-1780249207 .ygrps-yiv-1780249207ExternalClass p {} Since it's happening at a higher RPM, it's definitely not the pilot.  The pilot is only significant from idle to 1/8 throttle or so.  The problem will lie in the size of your main jet and the position of the needle. With carbs it's all about throttle position, not so much RPM.  Since you have the K&N, aftermarket pipe and the DynaJet, I would look at a mixture problem. In my experience, the DynaJet needle's taper is a little bit too aggressive, which leads me to think you may be hitting a spot where it's a little too rich.  Try this: Next time you ride it, pay attention to your "hiccup".  If it's not as noticeable when the bike's cold, but gets worse as the bike heats up, then drop your needle a notch and see if that clears it up.  If it's really bad when it's cold, but gets better as it gets warmer, raise it a notch.  If you adjust the needle and it moves the point of the hiccup, pay attention to that as well. I fiddled forever with the DynaJet needles in my old Seca II, and ended up going back to the stock ones.  I never could get it to run smooth through the whole band with the DynaJet needles in there.  The taper was just too aggressive. -Jeff Khoury

----- Original Message ----- From: "Mike Huber" To: "dsn klr650" dsn_klr650@yahoogroups.com> Sent: Sunday, June 6, 2010 9:27:48 PM GMT -08:00 US/Canada Pacific Subject: [DSN_KLR650] 06 with the hiccups !!!   My 06 with 25k smiles on the clock has the hiccups !!!!  As I accelerate through 3000 rpms it has a slight hiccup or miss ...It will have the same miss in   all gears as it hits 3000 rpm ...If I shift it above 3000 rpm I don't notice it...I'm running a K&N filter and a Dynajet kit with a after market pipe and   always get no less than 50 mpg ...I add Seafoam to the gas about every 3rd fillup .....Is this a carb adjustment ,pilot jet, or maybe a   diaphram problem ???    Thanx Mike Huber 06 FullyFarkledFrog Carlsbad, NM