Is the T Mod still a required mod for a 08 klr ?

Happy Finger's · 04-17-2009, 09:46 PM

I did a water crossing with nil issues the other week
it wernt really deep but it was deep enough

the t mod looks easy enough to do but just wanted to know if this issue is related to pre 08 klr's or not

i cant go out to the garage to have a look as my bike is in getting front and back suspension done to make it more suited to my weight, 1k thankyou very much

Thanks in advance

also the shark fin mod listed here http://www.klr650.marknet.us/
is no longer being made by that company

and why do you have to t mod it couldnt you just route the whole thing under the seat ?

Happy Finger's · 04-18-2009, 01:24 PM

anyone ?

vatrader01 · 04-18-2009, 01:53 PM

You will need to check your bike. If the carb vent tube is running up under the seat ONLY, you need to do a reverse "T-mod". The bike still needs a vent tube running to the ground to dispense overflow gasoline should there be a lay down of the bike or float stick in addition to a tube running under the seat in deep water. The gas won't flow uphill well enough to clear the vent tube. So yes, if you have a single line under the seat, you need to install a "T", running a vertical tube toward the ground.

Happy Finger's · 04-18-2009, 01:56 PM

cheers

now i understand the reason its required

me lay down the bike ?

naaaaahhhh

dminded · 04-20-2009, 01:15 PM

I can't imagine they would've rerouted the vent tube so I'd say yeah. I can tell you I have seen klr's set on idle in deep water crossings due to lack of t-mod. You don't want to be the guy who has to push his stalled bike out of the water for a ten minute mod.

Beezer · 04-20-2009, 01:52 PM

I'd say yes... needs the mod. I pinched a hole in my line with a leather punch & slid a piece of smaller hose into the hole, a bit or RTV to seal & done. I think the added hose was battery drain line.... been working for over 20,000 miles.

I don't think much fuel is gonna come out of that line when you dump it though... maybe. That line vents the diaphragm chamber to ambiant pressure.... ambiant on one side of the diaphragm, and manifold pressure on the other side is what lifts the slide & needle to increase power. The throttle turns a butterfly valve which controls manifold pressure.

If the line is blocked, M.P. isn't strong enough to move the diaphragm, so.... you get idle. Pulling the enricher (choke) out will give more fuel & the bike will run at higher RPMs, but will run crappy & have low power. Ran into this one on the road once where my friend's tube melted onto the exhaust.... pulled the tube off & all was back to normal.

KilLeR Kawasaki · 04-20-2009, 03:39 PM

I believe it is not needed. Check the klr650world.com or klr650.net for a more KLR centric audience.

04-17-2009, 09:46 PM	#1
Happy Finger's ^OP Banned Joined: Jun 2008 Location: Hillside Victoria Oddometer: 1,862	Is the T Mod still a required mod for a 08 klr ? I did a water crossing with nil issues the other week it wernt really deep but it was deep enough the t mod looks easy enough to do but just wanted to know if this issue is related to pre 08 klr's or not i cant go out to the garage to have a look as my bike is in getting front and back suspension done to make it more suited to my weight, 1k thankyou very much Thanks in advance also the shark fin mod listed here http://www.klr650.marknet.us/ is no longer being made by that company and why do you have to t mod it couldnt you just route the whole thing under the seat ?

04-20-2009, 03:39 PM	#7
KilLeR Kawasaki Marky A Joined: Jun 2008 Location: Littleton, Colorado Oddometer: 745	I believe it is not needed. Check the klr650world.com or klr650.net for a more KLR centric audience. __________________ 2008 Kawasaki KLR650 2006 Honda ST1300 2001 Honda XR400R Colorado Dual Sport Riders http://motodelmundo.blogspot.com/

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: .
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

04-18-2009, 01:24 PM	#2
Happy Finger's ^OP Banned Joined: Jun 2008 Location: Hillside Victoria Oddometer: 1,862	anyone ?

04-18-2009, 01:53 PM	#3
vatrader01 vatrader01 Joined: Jan 2007 Location: Gateway to Skyline Drive, Virginia Oddometer: 1,164	You will need to check your bike. If the carb vent tube is running up under the seat ONLY, you need to do a reverse "T-mod". The bike still needs a vent tube running to the ground to dispense overflow gasoline should there be a lay down of the bike or float stick in addition to a tube running under the seat in deep water. The gas won't flow uphill well enough to clear the vent tube. So yes, if you have a single line under the seat, you need to install a "T", running a vertical tube toward the ground.

04-18-2009, 01:56 PM	#4
Happy Finger's ^OP Banned Joined: Jun 2008 Location: Hillside Victoria Oddometer: 1,862	cheers now i understand the reason its required me lay down the bike ? naaaaahhhh

04-20-2009, 01:15 PM	#5
dminded Gnarly Adventurer Joined: Oct 2006 Oddometer: 167	I can't imagine they would've rerouted the vent tube so I'd say yeah. I can tell you I have seen klr's set on idle in deep water crossings due to lack of t-mod. You don't want to be the guy who has to push his stalled bike out of the water for a ten minute mod.

04-20-2009, 01:52 PM	#6
Beezer Beastly Adventurer Joined: Oct 2004 Location: Anchorage, formerly Spenard (hub of the universe) Oddometer: 4,417	I'd say yes... needs the mod. I pinched a hole in my line with a leather punch & slid a piece of smaller hose into the hole, a bit or RTV to seal & done. I think the added hose was battery drain line.... been working for over 20,000 miles. I don't think much fuel is gonna come out of that line when you dump it though... maybe. That line vents the diaphragm chamber to ambiant pressure.... ambiant on one side of the diaphragm, and manifold pressure on the other side is what lifts the slide & needle to increase power. The throttle turns a butterfly valve which controls manifold pressure. If the line is blocked, M.P. isn't strong enough to move the diaphragm, so.... you get idle. Pulling the enricher (choke) out will give more fuel & the bike will run at higher RPMs, but will run crappy & have low power. Ran into this one on the road once where my friend's tube melted onto the exhaust.... pulled the tube off & all was back to normal.