1. Vacuum lines cracked or intermittently leaking (see at mani sensor below carb) discovered during depression C replacement?<P>2. leaking/out of round throttle shafts. When the carb warms up and expands possible leaks when vacuum is max? spray carb cleaner on outside, does idle change?<P>3. Timing, out of round dist shaft / float at high RPM (worn advance springs ?-if any)<P>4. Gaskets? Head/Manifold/CARB same test as #2<P>5. clogged air tube/heat riser opening at rpm after warmup<P>????? Arrrgh, where is the bicycle<BR>my 2c

2000 WJ Stock