If ya'll remember my previous thread, I have my bike (mostly) running.
Right now I am having one hell of a time with a high idle. When the bike has run for a bit, and reaches what I assume is normal operating temps, the idle refuses to come down from 3k. Occasionally, a quick snap to full throttle then letting go will settle it down, but doing a mid throttle then going back to idle will have it humming high.
It really sounded like a vacuum leak, so I sprayed pretty much an entire can of carb cleaner around every hose and fitting, and the idle never changed.
It really lacks power at the lower RPM range, I have to give it a hefty amount of throttle to get it going, even if the clutch is slipping, but above 4k it comes alive very nicely.
So I think maybe my pilots are clogged, and was previously suggested to me. I cleaned and cleaned, rebuilt the carbs six times, the problem is always very consistant.
Looking at the spark plugs shows me the bike is running on the rich side; the plugs are sooty and black, but are not fouling out, I think anyways.
I noticed when the engine is warming, the idle will be a little higher when the bike is leaning on its kickstand, standing the bike straight or leaning to the right will result in a lower idle. This one is baffling me... made me think floats, but they all check out when I test them according to the service manual.
Also, while the engine is warming, choking will result in odd behavior. Rather than racing up to around 4k RPM like I'm used to, it'll chug around 2k at start up, and dip to around shortly after. Then as things heat up, it'll climb. When fully hot, it'll choke over 5k. Throttle response while cool and choked is excellent.
Attempting to run without choke results in instant death if cool, and terrible throttle response if I can keep it from dying by snapping the throttle. As things warm up, it takes longer to die from an idle. Eventually it'll run without choke, but only after 10-15 minutes. Throttle response isn't bad, but it could be better. Then as previously stated, it won't want to come down from 3k.
It's rideable... but it wants to die so bad when trying to take off from a stop. It's rather unsafe if traffic is bad and I need to get around a turn or intersection in a hurry.
Do I need new pilot jets? Internal carb damage/leaking?