Yeah, it's a good idea. I never do it though because I invariably forget and have to start my bike twice. I figure the first time it gives me trouble I'll put in an old school petcock, but my 08 has pretty much always been left 'on' and no issues. If you're still in the habit (I used to be), keep doing it. my .02
You might want to switch out for a non vacuum PC if you feel like messing with it, and you're going to leave it "off"
Should you convert to a manually-actuated (no "vacuum") petcock, some "tribal knowledge," some "Internet mythology" to consider:
Some believe trimming the main fuel standpipe increases fuel pressure at the carburetor. Actually, the hydrostatic pressure at the carburetor remains entirely a function of the "head," the height, the vertical elevation of the fuel level above the carburetor; the length of the standpipe has absolutely no influence on fuel pressure.
One definite and actual effect of trimming the main fuel standpipe: Your reserve capacity will be REDUCED, according to the length trimmed.
Yet, go ahead and cut your standpipe as ye wish . . . I have spoken.
Fear of a vac-leak caused me to go with the stock full flow unit.
I've removed all the safety switches and vacuum system to give that
peace of mind of something that can't fail out in the world and stranding me.
The stock petcock can be taken apart. Take out or hole the vac-diaphram
and now it's an old school unit. The back vac nipple as well as the carb need
to be capped off with a no leak snugness.
I have to ride like I did in the 70's and 80's. Turn on the gas, Make sure I'm in neutral,
and have to kick up the sidestand because the bike will keep running. Old school is
fine with this 48yo old fart in training.
Just another option,
A forum community dedicated to Kawasaki KLR 650 motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, adjustments, classifieds, troubleshooting, maintenance, conversions, and more!