KLR in the wet

G

greyone

Guest
Pocored - I've been on 3 rides over 4 hours each in the dry and no stalling problems like we had on the March Neebie ride and I had on New Years day. Heavy rain and big puddles both cause problems.

What fix is required? Hopefully Norm can jump in and comment.
 

Yak_KLR650

New member
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Carb vent 'T' mod is likely needed. the vent tube come out low and can suck up water in puddles or even heavy rain. simply puta 'T' in the tube and run an end under the seat area to fix.

Lots of info on the web if you search on KLR Carb 'T' Mod.
 

joker650

Active member
imported post

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Rode with a KTM last year that developed a problem about 100 yards after every water crossing.

Ended up the hard plastic spark plug boot was cracked and moisture would get in there and ground out the plug. Seen that on a few bikes now.
 

Norm

New member
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imported post

Yak beat me to the post but it's no dishonour to lose to him. (VBG)

The bowl vent "T" modification IMO is a must do for the KLR. Easy, cheap but not very pretty- sort of makes me think of my ex-wife......

Many KLRs give symptoms like a wet ignition when road riding in the rain due to water restricting the air flow to the carb bowl, so the "T" mod is worth doing even if it doesn't solve your particular problem.

A really interesting excercise is to place a cup of water up onto the bowl vent hose while the engine is idling. There is a significant air flow upward in the bowl vent hose which will cause water to channel and flow one side of the thehose. The engine will react to the change in bowl air pressure. This makes me think that a filter might be worth consideration on the bowl vent hoses however I don't notice sediment build-up in the carb bowl. It's still in the thinking list.

Another item to add to your check list is to make sure that the drain hole for the spark plug well in the head is open. It drains out on the right side of the head to keep the well from filling with water. If the drain is plugged and the well fills with water some symptoms often occur. I like to use some silicone dielectric grease on the spark plug cap's rubber seal as a"just in case". IMO it is also worth while to spray an ignition sealant onto the sparkplug boot, wire and coil as a precaution.

HIH

Norm
 
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