Fuel problem, or Electrical?
My new (Old) bike is experiencing a misfire problem.
1996 with only 2400 miles.
At first it stalled on the way home, after a couple of days of running fine, waited 10 mins and it restarted.
I added Berryman's Chemtool to the tank and ran it the next day.
I then filled up with gas and it begain missing on the front cylinder. Both plugs were wet. I then changed the plugs to no avail. It appeared the front cylinder wa now flooding. I took the plugs out, (they all were firing) and left it for 10 mins, then cranked it over to see a lot of fuel expelled from the front plug holes.
I then decided to clean the carbs, (stuck float ya know!). No more flooding but still missing from the front. the backpressure on the right (front) exhaust is not as strong as the left. Still all plugs are firing when tested against the frame, although not a massive blue flame as in my car, but all four plugs apear to fire approximatly the same strength.
Did resistance check on the coils, OK.
This thing is driving me crazy.... A little help Please.
Oh, yea.... I changed out the gas.
Thanks ahead of time guys for the assistance.
Forgot to say New M/F Battery (Yuasa: YTX14AHL-BS)
09/16/06 Update - I am listing all things done to the bike since this problem started......
... Rinsed out tank with gas.
... Dissasembled and cleaned Petcock and filters.
... Changed oil and filter
... Drain and refil Radiator w/ Dexcool (no water) (I know what they say....)
... Drain and refil rear gearbox
... Relube final drive w/ Honda moly (has been done before, hoorah!)
... Check compression, (Front 160, Rear 155)
... Check vacuum (wildly swings at idle, then smothes out with throttle)
... Sync carbs (synced at 4000, way off at idle)
... Installed Capacitors on regulator wiring
... Wired coils direct to batt. (thru relay)
... Added voltmeter (led) thru relay
... New Plugs (Iridium), Wires and Caps (NGK)
... Just for the record, I think I found the problem, I took the carbs off for the FOURTH time, and found both floats the be stuck closed. This apparently happened when I shot a ton of Gummout in reverse thru the drain hole. At first only the front cylinder was effected, and the more I shot it up, the worse it got. Now remember I have cleaned the carbs TWICE before and once was a soak in carb dunk, so what ever is in the fuel (or was) or whatever is in the Gummout, is not meant for these carbs.
I will copy this fix to the reply, hopefully with all in one post, the answers will be easier to find.
Anyway...the bike is up and running again....
I will start another post about the vacuum problems I am having in another forum
Last edited by dta116; 09-16-2006 at 06:34 PM.