Chino California help

[Flynt]

JIT...   

see you tomorrow.

Frank

[SlowOldGuy]

Headed back home, about 4 miles from Newcomb's I felt the subtle loss of power. It was happening, I quickly switched to Reserve and checked voltage. Voltage was reading 14.3. I found that I could get the engine to keep power by shifting down and keep the RPMs up. Makes cornering really choppy like being in the wrong gear on a two stroke. This went on for another 2 miles like this till the condition degraded rather suddenly and stalled like it did near Chino.

Mark,
This is a vey good observation on your part and a direct indication of a float bowl running out of fuel.

When you're cruising (or not being aggressive on the throttle) you're mainly pulling fuel from the idle jets.  Since the idle jets are physically higher in the float bowl than the main jet, as the fuel level drops, they will stop flowing fuel first.  You'll feel the slight drop in response like you described. 

If you crank up the throttle, you pull more fuel from the main which is still able to deliver fuel.  If the level continues to drop and you uncover the main jet, you will be pulling over immediately as the motor is now dead.

I had the exact same thing happen when a wet tank bag prevented my '85's fuel cap from venting.  It is definitely a helpless feeling.

DavidR.

[Pat Conlon]

Do I get a prize?

For those of you that have a MityVac or other type of hand vacuum pump, place the petcock under a -light- vacuum, note the gauge reading, and leave it on for a couple of hours and see if the gauge holds.
A bit of silicone grease on the petcock vacuum nipple, will keep the vacuum from leaking down at that hose connection.

Cheers Mark!

[FJmonkey]

About 150 miles on the new petcock here in Napa and zero issues. Great roads up here, good place to get one's Kookaloo on.

[1tinindian]

About 150 miles on the new petcock here in Napa and zero issues. Great roads up here, good place to get one's Kookaloo on.

Truly is nice that you got your happy ending from your petcock sucking episode.
Cheers!
Leon

[fj11.5]

was love at first suck 

[dogtired]

Pretty sure I have the same problem. Has happened randomly three times in the last 3,000 km.
Weirdly, each time somewhere between 190 and 200 kilos on the trip meter.
Twice on a long trip, and once when coming home on a short trip.
After each incident it has run flawlessly and strong.
When I felt it surging I slipped it back 2 gears and it come to life again, for not very long... exactly how SlowOldGuy described.
Playing with the electric reserve and pulling the choke out does nothing.

Dammit, more money... just what I needed.




Anyways, how the hell did we ever figure out all this stuff before the net..?