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Old 04-15-2008, 08:23 AM   #1
ogklx400 OP
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What is the T-Mod on a klr 650?

Just wanted to no what the T-Mod is a what it does for the bike thanks
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Old 04-15-2008, 08:54 AM   #2
Silver King
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Quote:
Originally Posted by ogklx400
Just wanted to no what the T-Mod is a what it does for the bike thanks
It makes your bike into a KLT! Thank you. Thank you. I'll be here all week. GONG!

Seriously...this mod provides an alternative vent for the carb (up high) in the event of a water crossing or heavy rain.

Too lazy to search, but I'm sure there's a thread here somewhere.
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Old 04-15-2008, 09:01 AM   #3
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it allows you to go thru water crossings.
it takes under 5 minutes and costs $1.60.
if its not on this forum, go to www.klr650.net
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Old 04-15-2008, 09:03 AM   #4
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I first discovered the T-mod on a klr forum, but there are plenty of other bikes that could benefit. In the '90s, when the Funduro was a new thing, the book on them was that they didn't like to run in the rain. Dealer techs scratched their heads over that one, and one friend sold hers because she got sick of her bike's balkiness whenever it got wet out. What do you want to bet that a T-mod would have fixed her right up?
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Old 04-15-2008, 09:24 AM   #5
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Print this and keep it as your KLR bible:

http://www.bigcee.com/klr650faq.html
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Old 04-15-2008, 10:03 AM   #6
ogklx400 OP
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Quote:
Originally Posted by RAZR
it allows you to go thru water crossings.
it takes under 5 minutes and costs $1.60.
if its not on this forum, go to www.klr650.net
Thanks for the info everyone you guys an gals are great..
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Old 04-16-2008, 07:48 AM   #7
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Quote:
Originally Posted by judjonzz
I first discovered the T-mod on a klr forum, but there are plenty of other bikes that could benefit.
I'll second that statement! I have done the T-mod on almost every bike I've ridden since I do cross streams a lot.

What you are doing is adding a "T" to the vent lines on the carb and running one up high under the tank or seat to allow the carb to vent while the line down low is in the water. If you don't the line down low will be blocked by the water and your bike will starve for fuel and die! Not a good thing in a creek.
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Old 04-16-2008, 10:40 AM   #8
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Variations on the "T" mod are.... take a leather punch & put a hole in the vent line big enough to slide in a smaller tube (like a battery drain line size), no fitting required...... or punch the hole & forget the extra line....... or pull off the line all together..... or re-route the original line so it points up under the seat and punch a drain hole in the low spot.
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Old 04-16-2008, 11:19 AM   #9
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Quote:
Originally Posted by Beezer
Variations on the "T" mod are.... take a leather punch & put a hole in the vent line big enough to slide in a smaller tube (like a battery drain line size), no fitting required...... or punch the hole & forget the extra line....... or pull off the line all together..... or re-route the original line so it points up under the seat and punch a drain hole in the low spot.

i wouldn't do that. you'd have gas all over your engine, tire, chain, etc.
i would just do the mod properly and forget about it.
it seriously takes under 5 min, you get the T and the tube from a hardware store( or an auto store) and your done.
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Old 10-31-2009, 08:21 AM   #10
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I figured I'd bring this back from the dead rather than starting another thread.

I just bought a '99, and was reading up on some common modifications, this being one of them. My question is: If this is a carb VENT tube, not the overflow tube, how serious is the risk of having gas come out through this tube? If it is indeed strictly a vent for air, couldn't I just reroute the vent up higher without worrying about gas running all over the bike? TIA

Looking forward to some water crossings
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Old 11-01-2009, 09:24 AM   #11
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To update that last post, I rode some pretty gnarly trails on the KLR with my brother (who actually rode a Cb360 shod with knobby tires ) and it only stalled once right after I went through a fairly deep (2 feet) mud hole. I learned to just keep the revs up a bit after each crossing and had no more issues, it idled and ran fine. I's still like to do the modification for piece of mind, and am still wondering if its OK to just route the tube higher instead of splitting it.
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Old 11-01-2009, 11:52 AM   #12
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Quote:
Originally Posted by XS500RUS
I's still like to do the modification for piece of mind, and am still wondering if its OK to just route the tube higher instead of splitting it.
I did run the tube higher for some months and eventually did the split
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Old 11-02-2009, 06:40 AM   #13
tpar1220
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if you dump the bike on it's side, gas can run out of every tube on the carb. if you just run the tube high... when you pick the bike back up... that gas can't get out of the tube and will be a real bitch to restart.

just cut the line and install the t... run the 2nd line up under tank somewhere.
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Old 11-02-2009, 01:22 PM   #14
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Quote:
Originally Posted by tpar1220
if you dump the bike on it's side, gas can run out of every tube on the carb. if you just run the tube high... when you pick the bike back up... that gas can't get out of the tube and will be a real bitch to restart.

just cut the line and install the t... run the 2nd line up under tank somewhere.
Ahh, that makes sense. Thank you, I'll do the mod next weekend then.
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Old 05-31-2010, 09:17 AM   #15
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Ummmmmmmmmmmmm,

Why does everyone on a KLR seem to run the extra gas vent line on the side of the bike where the exhaust is???
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