There was a little oil in the trap/reservoir at the end of this drain hose, so I pulled it off (the trap/reservoir) the end of the hose andthe reservoirlooks like a thing that will close when the vacuum builds in the aircleaner when bike is running but would release when the bike is shutoff, no big deal. However and maybe I am overthinking this, the hose that the reservoir slips onto had a lot of electrical tape around it where it slides over the nipple on the reservoir. Why would someone go to the effort of doing that? Is there a problem if that connection between the reservoir and the hose is not sealed perfectly? I was wondering if the vacuum when the bike is running could suck water up that hose or what was the guy thinking.
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air filter drain hose
- Thread starter tractor
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Farp
Active member
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There probably isn't enough vacuum to suck water up the hose and into the airbox, but if you are in a deep water crossing, maybe up to the seat, water can leak into the airbox if the drain hose and connections are not perfectly sealed. Once water enters the airbox it can easily be sucked through the carb and into the engine. The guy who taped the hose connections was being extra careful, and that's not a bad thing.
John
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There probably isn't enough vacuum to suck water up the hose and into the airbox, but if you are in a deep water crossing, maybe up to the seat, water can leak into the airbox if the drain hose and connections are not perfectly sealed. Once water enters the airbox it can easily be sucked through the carb and into the engine. The guy who taped the hose connections was being extra careful, and that's not a bad thing.
John
04klr
Well-known member
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tractor, you seem to be narrowing down all the "likely suspects" for your new KLR, have you heard of/done, the "T" vent for the carbatootoer, it can/will plug with mud, stalling the engine.
cut the carb bowl vent line, install a "T", adding 1.5ft. or so vent line,thenroute the original vent back in place and the other shove it up into the backbone of the frame (ouch?) ta da, fret free muddy roads.
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tractor, you seem to be narrowing down all the "likely suspects" for your new KLR, have you heard of/done, the "T" vent for the carbatootoer, it can/will plug with mud, stalling the engine.
cut the carb bowl vent line, install a "T", adding 1.5ft. or so vent line,thenroute the original vent back in place and the other shove it up into the backbone of the frame (ouch?) ta da, fret free muddy roads.
2Trider
New member
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04klr wrote:
This is a absolute must do if you ride in any deep water or shall I say any water depth where the carbs vent tubes will go under water. When they do it cuts off the atmospheric venting of the fuel bowl and the motor will no longer be able to draw fuel up through the jets...guess what happens when your half way through that puddle.
By "T" venting right at the spigots on the carb you now allow a second path for air to enter the carb...that second line should be routed to the airbox or up to the steering head and into a little ie film canister with a hole in it and maybe a piece of foam inside. and keep the other line in the orginal route to allow fuel overflow to drain from the tube.
http://www.klr650.marknet.us/tmod.html
some will even put a one way valve on the drain tube ends ...to stop water flowing up the tube to the "T"
Do this to all carb vent lines.
For the air box drain tube make sure it is clean and that the ball or whatever they use is working right so as to stop water from flowing into the airbox when your crossing that deep puddle:clap:
That tube can get plugged from air filter oil and dirt.
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04klr wrote:
This is a absolute must do if you ride in any deep water or shall I say any water depth where the carbs vent tubes will go under water. When they do it cuts off the atmospheric venting of the fuel bowl and the motor will no longer be able to draw fuel up through the jets...guess what happens when your half way through that puddle.
By "T" venting right at the spigots on the carb you now allow a second path for air to enter the carb...that second line should be routed to the airbox or up to the steering head and into a little ie film canister with a hole in it and maybe a piece of foam inside. and keep the other line in the orginal route to allow fuel overflow to drain from the tube.http://www.klr650.marknet.us/tmod.html
some will even put a one way valve on the drain tube ends ...to stop water flowing up the tube to the "T"
Do this to all carb vent lines.
For the air box drain tube make sure it is clean and that the ball or whatever they use is working right so as to stop water from flowing into the airbox when your crossing that deep puddle:clap:
That tube can get plugged from air filter oil and dirt.
Big Booger
New member
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A little oil in there or water (grey oily gunk)is noticed most after a good rip on the highway and or in the rain. Stuff comes up the engine vent and condenses in the airbox. If your bike has had the PCV valve mod in the engine vent this is common. Pour the oil on your chain.
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A little oil in there or water (grey oily gunk)is noticed most after a good rip on the highway and or in the rain. Stuff comes up the engine vent and condenses in the airbox. If your bike has had the PCV valve mod in the engine vent this is common. Pour the oil on your chain.
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This site is a fairly good start for a KLR owner!!
http://www.klr650.marknet.us/
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This site is a fairly good start for a KLR owner!!
http://www.klr650.marknet.us/