Wilsons Sandbox

Ken, It sounds like you're describing the vacuum line that connects to the fuel petcock. This petcock is vacuum operated. When there is no vacuum in the carb, the fuel flow through the petcock is turned off, even though the petcock is in the ON or RESERVE position. There is vacuum in this line whenever the KLR is cranking over or running. If the clear plastic line is thin walled and pinches or collapses, this will shut off the fuel flow to the carb & result in stalling. BTW, the stock vacuum line is moderately thick rubber & not clear. The filtering for this line is performed by the carb's air fileter. I don't seel why rainy weather would have any effect on this vacuum line. KLRs have been known to randomly get temporary fuel starvation symptoms that usually clear up by themseleves. Professor A9 Federal Way, WA. [USA] --------------------------- -- KEN TRULL wrote:

> The other day I posted about stalling in the rain and > re-routing all the tubes out the side of the bike to > solve the problem quickly. I suspected the gas tank > breather as the culprit based on earlier list discussions. > The tank breather WAS NOT the culprit. It is/was the > clear tube that comes directly from the upper left side > of the carburetor. > It is a vacuum line of some sort. Want to prove it? Let > the bike idle and put your finger over the end of the tube > and watch the engine stall almost immediately. > > What is the purpose of that line? It is totally unfiltered > unless the filter is inside the carb.(unlikely) Seems like > it would suck any kind of small grit and grime right inside > the carb. > > Hook a brother up wit' some learnin'. > > Ken Trull > BR549-A14 > Greenbough, AL