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DSN_KLR650
nhjim10
Posts: 11
Joined: Mon May 03, 2010 3:07 am

k&n filter question...

Post by nhjim10 » Sat Feb 19, 2011 10:34 pm

I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) Jim

Fred Hink
Posts: 2434
Joined: Thu Apr 06, 2000 10:08 am

k&n filter question...

Post by Fred Hink » Sat Feb 19, 2011 10:58 pm

Before you start chopping up gas tanks, I d try out that filter on your bike first to see if it will even run. The flow of air through the stock air filter and air box to the carb is different than if you put on a clamp on air filter. The air that comes off a clamp on air filter is turbulent and will effect the jetting on the carb. Try it out and see. It may run fine or it may not. Fred www.arrowheadmotorsports.com From: nhjim10 Sent: Saturday, February 19, 2011 9:34 PM To: DSN_KLR650@yahoogroups.com Subject: [DSN_KLR650] K&N Filter Question... I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) Jim [Non-text portions of this message have been removed]

salinej1@juno.com
Posts: 16
Joined: Tue May 18, 2004 7:40 am

k&n filter question...

Post by salinej1@juno.com » Sat Feb 19, 2011 11:05 pm

On Sun, 20 Feb 2011 04:34:31 -0000 "nhjim10" writes: SNIP I want opinions whether I'm crazy, or on to something. SNIP
> Just throwing some thoughts out there. Now that I'm making progress > on my bike I'm planning trips and mods. :-) > > Jim
<><><><><><> <><><><><><> Jim, Probably not crazy since you're asking but not onto something positive either. : ) I'll suggest the K&N won't filter as well as a properly maintained stock, UNI or No Toil filter. My understanding of how the K&N works is it filters better the dirtier (within reason) it gets. So cleaning it won't improve filtering. Even if you don't run in dusty conditions I wouldn't trust a K&N on anything I owned. Removing the air box will leave you room for the K&N to stick back a bit where the air box was. But you'll also have to figure out what you'll do for the crankcase breather. Maybe punch a hole in the filter and use RTV or something to seal the breather to the filter. : ( I suppose you'd also have to work out a rear mount for the carb to reduce vibration and possibly fuel agitation. Never heard of heating a plastic tank and expanding it with light air pressure. Since compressed air is a spring it might be good for a youtube video. I don't see much need for more fuel than the stock tank holds although once or twice I wouldn't have minded having an extra gallon. But I surely wouldn't like to have 10 gallons on my KLR. That's a lot of weight for the first 300 miles. Good luck deciding what you're gonna do. I find that lots of times the planning and dreaming is a large part of the pleasure of a trip. 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 . . ____________________________________________________________ Globe Life Insurance $1* Buys $50,000 Life Insurance. Adults or Children. No Medical Exam. http://thirdpartyoffers.juno.com/TGL3141/4d60a10f98094496b84st01vuc

Jud
Posts: 570
Joined: Tue Sep 22, 2009 7:52 pm

k&n filter question...

Post by Jud » Sun Feb 20, 2011 9:14 am

My quick reaction is that you are looking for answers to questions that nobody is asking. Well, not strictly speaking, because you are asking, but you know what I mean. First off, I would never go out of my way to give up the superior air filtration of a foam filter just to run a K&N, which will pass a lot more grit if you run any dirt roads at all. Then, as Fred points out, without the air box the bike may not run the same. Moreover, it would not do water crossings nearly as well. As for fuel capacity, more is always better, up to a point, but with 5.5 gallons at hand (seven with an IMS), is it really worth the trouble of fabricating an auxiliary supply? And a lift pump? I have always considered the need for a fuel pump to be a weak point of my KTM, just one more thing to go wrong.
--- In DSN_KLR650@yahoogroups.com, "nhjim10" wrote: > > I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. > > I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. > > But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. > > Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. > > Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) > > Jim >

roncriswell@sbcglobal.net
Posts: 307
Joined: Mon Apr 28, 2008 12:08 pm

k&n filter question...

Post by roncriswell@sbcglobal.net » Sun Feb 20, 2011 9:28 am

The only time I ever had a problem with my KLR smoking and using oil was running a K&N in dusty conditions. A friend fixed that problem. UNI for me now. Criswell
On Feb 20, 2011, at 9:14 AM, Jud wrote: > My quick reaction is that you are looking for answers to questions that nobody is asking. Well, not strictly speaking, because you are asking, but you know what I mean. > > First off, I would never go out of my way to give up the superior air filtration of a foam filter just to run a K&N, which will pass a lot more grit if you run any dirt roads at all. Then, as Fred points out, without the air box the bike may not run the same. Moreover, it would not do water crossings nearly as well. > > As for fuel capacity, more is always better, up to a point, but with 5.5 gallons at hand (seven with an IMS), is it really worth the trouble of fabricating an auxiliary supply? And a lift pump? I have always considered the need for a fuel pump to be a weak point of my KTM, just one more thing to go wrong. > > --- In DSN_KLR650@yahoogroups.com, "nhjim10" wrote: > > > > I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. > > > > I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. > > > > But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. > > > > Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. > > > > Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) > > > > Jim > > > > [Non-text portions of this message have been removed]

dooden
Posts: 3355
Joined: Sat Dec 15, 2001 3:37 pm

k&n filter question...

Post by dooden » Sun Feb 20, 2011 10:05 am

K&N = Krappy & Nogood to me. I ride in alot of dust. Might be easier to get some filter skins, and just change them, take little to no room to pac, when skin is dirty, replace over the clean filter and keep going. As for all the extra fuel, why not stop at a gas station and top off ? Bike is top heavy enough, let alone added gear for a trip. Dooden A15 Green Ape
--- In DSN_KLR650@yahoogroups.com, "nhjim10" wrote: > > I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. > > I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. > > But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. > > Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. > > Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) > > Jim >

RobertWichert
Posts: 697
Joined: Sun Jan 10, 2010 11:32 am

k&n filter question...

Post by RobertWichert » Sun Feb 20, 2011 11:14 am

I have been told that airboxes are actually designed, not just thrown in there, as in, the volume makes a difference to performance. Has anybody ever done any dyno runs with and without the airbox (rejetting, of course). My "guess" is that the stock airbox helps lower RPM torque. Robert P. Wichert P.Eng LEED AP +1 916 966 9060 FAX +1 916 966 9068 ===============================================
On 2/20/2011 8:05 AM, Dooden wrote: > > K&N = Krappy & Nogood to me. I ride in alot of dust. > > Might be easier to get some filter skins, and just change them, take > little to no room to pac, when skin is dirty, replace over the clean > filter and keep going. > > As for all the extra fuel, why not stop at a gas station and top off ? > > Bike is top heavy enough, let alone added gear for a trip. > > Dooden > A15 Green Ape > > --- In DSN_KLR650@yahoogroups.com > , "nhjim10" wrote: > > > > I've never run a K&N filter on a street bike for the simple reason > that I want a filter that I can easily replace while on the road if I > have to. But then again, my filters usually lasts an easy 10k+ miles > before needing to be cleaned because I don't run in really dusty > conditions, so as long as I washed the K&N before any long rides, it > wouldn't be an issue. So here is an idea I just came up with...I want > opinions whether I'm crazy, or on to something. > > > > I happened to be given 3 K&N filters that just happen to fit on the > KLR carb. If I used one, I could ditch the stock airbox, leaving a > large empty area. In my quest for longer cruising range I want more > fuel capacity, so I've been bouncing between modifying the extra stock > tank I have (lots of cutting & welding, could end up butch and junk) > or getting an IMS and expanding that with the old boiling water and > couple PSI of air method we used to use on plastic tanks, which should > gain me at least another gallon. > > > > But I was wondering...I could fab up a clean tank that would fit > where the airbox was, and shape it to take advantage of every inch of > room, and possibly add 2 gallons of additional capacity. Like any aux. > tank, I'd hook it up with an electric pump and valve to transfer the > fuel to the main tank. I could even combine this with an expanded IMS > tank, and possibly end up with nearly 10 gallons total when I'm done. > > > > Another thought was to fab (or buy) a small tank to mount under my > top box. I could add another Givi mount to the top of the tank so I > could quickly add or remove the tank. The downside is that the weight > would be up high. Not good when I'm on a long trip and already have a > lot of stuff packed on the back. > > > > Just throwing some thoughts out there. Now that I'm making progress > on my bike I'm planning trips and mods. :-) > > > > Jim > > > > [Non-text portions of this message have been removed]

nhjim10
Posts: 11
Joined: Mon May 03, 2010 3:07 am

k&n filter question...

Post by nhjim10 » Sun Feb 20, 2011 11:54 am

I'll reply to all the relies I got so far...thanks for the opinions, just what I wanted :-) I want the extra fuel supply because the majority of my riding is on the street, often doing long trips, and the aprox. 200 mile range of my stock tank is pathetic (usually less on the highway loaded down). Hopefully the better sealing of the new piston/rings will help out with mileage as well as the oil consumption I was having, since I know mileage in the high 30's isn't typical of a KLR. Carb was tuned, with no changes. Before anyone states it...I know that much highway riding is sacrilege to a KLR, but its actually very comfortable in my opinion, and its fun to ride 1100 miles straight, camp out, and hit light trails in the morning. The answers I got about the K&N are about what my feelings are as well. I've never been that impressed by them, so the airbox elimination thought is now gone. re: the design of the stock airboxes, while some bikes are designed with maximum airflow in kind, the KLR isn't one of them. Usually they are designed to be very quiet, because the govt. has very strict noise level regulations for stock vehicles. Ever notice how much more noise you get with a K&N, or even just a drilled airbox? Not that its severely loud, but enough so the testers will pick it up. I'm not after every last HP, and the KLR doesn't respond to airflow as much as some other engines, so performance wasn't my goal. I'll skip the K&N thought and consider an aux. fuel supply elsewhere. Jim
--- In DSN_KLR650@yahoogroups.com, "Dooden" wrote: > > K&N = Krappy & Nogood to me. I ride in alot of dust. > > Might be easier to get some filter skins, and just change them, take little to no room to pac, when skin is dirty, replace over the clean filter and keep going. > > As for all the extra fuel, why not stop at a gas station and top off ? > > Bike is top heavy enough, let alone added gear for a trip. > > Dooden > A15 Green Ape > > --- In DSN_KLR650@yahoogroups.com, "nhjim10" wrote: > > > > I've never run a K&N filter on a street bike for the simple reason that I want a filter that I can easily replace while on the road if I have to. But then again, my filters usually lasts an easy 10k+ miles before needing to be cleaned because I don't run in really dusty conditions, so as long as I washed the K&N before any long rides, it wouldn't be an issue. So here is an idea I just came up with...I want opinions whether I'm crazy, or on to something. > > > > I happened to be given 3 K&N filters that just happen to fit on the KLR carb. If I used one, I could ditch the stock airbox, leaving a large empty area. In my quest for longer cruising range I want more fuel capacity, so I've been bouncing between modifying the extra stock tank I have (lots of cutting & welding, could end up butch and junk) or getting an IMS and expanding that with the old boiling water and couple PSI of air method we used to use on plastic tanks, which should gain me at least another gallon. > > > > But I was wondering...I could fab up a clean tank that would fit where the airbox was, and shape it to take advantage of every inch of room, and possibly add 2 gallons of additional capacity. Like any aux. tank, I'd hook it up with an electric pump and valve to transfer the fuel to the main tank. I could even combine this with an expanded IMS tank, and possibly end up with nearly 10 gallons total when I'm done. > > > > Another thought was to fab (or buy) a small tank to mount under my top box. I could add another Givi mount to the top of the tank so I could quickly add or remove the tank. The downside is that the weight would be up high. Not good when I'm on a long trip and already have a lot of stuff packed on the back. > > > > Just throwing some thoughts out there. Now that I'm making progress on my bike I'm planning trips and mods. :-) > > > > Jim > > >

David Critchley
Posts: 282
Joined: Tue Oct 03, 2000 1:11 pm

k&n filter question...

Post by David Critchley » Sun Feb 20, 2011 12:40 pm

You might want to check out "Tour tank", they make a lot of tanks in various sizes. I don't know if they do custom stuff. DC D Critchley
On 19/02/2011 21:34, nhjim10 wrote: > > Another thought was to fab (or buy) a small tank to mount under my top > box. I could add another Givi mount to the top of the tank so I could > quickly add or remove the tank. The downside is that the weight would > be up high. Not good when I'm on a long trip and already have a lot of > stuff packed on the back. > > Just throwing some thoughts out there. Now that I'm making progress on > my bike I'm planning trips and mods. :-) > > Jim > > [Non-text portions of this message have been removed]

dat brooklyn bum
Posts: 83
Joined: Fri Feb 18, 2011 7:03 pm

k&n filter question...

Post by dat brooklyn bum » Sun Feb 20, 2011 1:26 pm

--- In DSN_KLR650@yahoogroups.com, "nhjim10" wrote:
> > I know mileage in the high 30's isn't typical of a KLR. Carb was tuned, with no changes. >
Something's definitely wrong with this equation, unless you get high 30s when fully loaded, riding into a headwind, with the throttle WFO. I've managed that kind of mileage in those situations but otherwise, you oughtta be seeing mpg in the 40s at least some of the time. da Vermonster

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