Problems with attachments solved: viewtopic.php?f=7&t=17433

NUMBER ONE CYLINDER NO GAS

Forum rules
Please do not start new topics here, but here: New Panhead and Flathead topics
Post Reply
frankovy
Posts: 37
Joined: Sat Apr 16, 2005 2:19 pm

NUMBER ONE CYLINDER NO GAS

#1

Post by frankovy » Fri Jul 28, 2006 3:00 am

STARTING PROBLEM; AFTER A FEW KICKS I GET A BACKFIRE OUT THE CARB NO PROBLEM YET IT ALWAYS DID THAT BUT STARTED. NOW THE BIKE WANTS TO START BUT DOESN'T. WHEN I CHECK THE PLUGS NUMBER 2 IS WET WITH FUEL AND NUMBER 1 SHOWS SIGNS
OF RUNNING RICH BUT THAT PLUG IS DRY OF FUEL. ANY SUGGESTIONS
FRANK



King
Posts: 387
Joined: Fri Apr 02, 2004 5:05 pm

#2

Post by King » Fri Jul 28, 2006 1:01 pm

Frank

From your description it sounds like the cylinders are getting fuel but not enough spark for ignition. Check for spark with the plugs out and grounded on the motor. If spark is weak (yellow) or non existant i would go through the ignition system checking battery charge, points gap and condition, timing, and of course replace the plugs. Once you get it running, it also sounds like you need to lean out the carb. What carb do you have?

Good luck

King

fourthgear
Posts: 1390
Joined: Mon Apr 11, 2005 1:12 pm
Location: north florida

#3

Post by fourthgear » Fri Jul 28, 2006 1:39 pm

I'm with king, you could also check your float in the carb. for proper operation and adj.. Did this just start out of the blue or have you worked on some thing on the motor lately? The type of carb. is also of intrest. Also check lifter adj. , solids or hydrolics ? Was the intake manifold leak checked when installed ?

frankovy
Posts: 37
Joined: Sat Apr 16, 2005 2:19 pm

#4

Post by frankovy » Fri Jul 28, 2006 1:59 pm

O-RING MANIFOLD GASKETS REPLACED, CHANGED CARB FROMM SS SUPER B TO MIKUNI40MM, TIMING CHECKED WITH SLASH IN CENTER OF INSPECT HOLE AND POINTS BEGINNING TO OPEN ON HIGH LOBE OF MAGNETO. WHY WOULD NO#1 PLUG BE DRY AND NO#2 BE WET? POSSIBLE VALVE DAMAGE MAYBE? KICK START NO BATTERY.
FRANK THANKS FOR QUICK REPLY.

fourthgear
Posts: 1390
Joined: Mon Apr 11, 2005 1:12 pm
Location: north florida

#5

Post by fourthgear » Fri Jul 28, 2006 4:56 pm

Can't help you with the mag setting , could be some thing with the Mag.others here can tell you about them , but have you checked your manifold for leaks , new o- rings does not mean it is not leaking . Check some threads on the other forum will tell you how to leak check( I think Cotten , (yes I droped your name), has a web page about it ,but not sure of the address, might be in knowledge base here), basicly you have to pull the carb and make or buy an adaptor plate( I think mskbean makes them for sale ) ( or tapered rubber plug( 1 1/4 dia.I think ) and barbed fitting )and put about 10 psi to manifold and use soap and water mixture ( I use a micro leak solution that I use for checking for refrigerant and pneumatic leaks )and spray or pour or what ever way you can get it around the clamps and surrounding area , including the pan cover screws above the manifold spigits to see if you get any thing bubbling up to show leaks and repair as needed.If you get no leaks , thats real good and you can trouble shoot from there , Check your lifters , if you have hyd. are any colasped or out of adj. , solids , are they adj. properly?Have you done a compression check?Lot of stuff to look at ,but its a process of elimination.

rigidpanman
Posts: 119
Joined: Fri Jul 01, 2005 2:44 pm
Bikes: 49 fl,71 honda 750 sohc k1,98 cbr600f3,2)gl1100 goldwings
Location: hopewell va
Contact:

#6

Post by rigidpanman » Fri Jul 28, 2006 6:43 pm

damn.sounds almost just like my problem,but mine is on the rear cylinder.gonna do the leak test thing tomorrow and see how that goes.

panhead
Site Admin
Posts: 2513
Joined: Wed Dec 12, 2001 9:17 pm
Bikes: 1954 FL
Location: Holland

#7

Post by panhead » Fri Jul 28, 2006 7:57 pm

Cotten's leak test:

viewtopic.php?f=103&t=9405

Guest

#8

Post by Guest » Fri Jul 28, 2006 9:24 pm

LET ME KNOW WHAT YOU FIND. MY BIKE RAN FOR ABOUT 15 SECONDS THEN DIED. I'LL SET UP THE LEAK TEST.

rigidpanman
Posts: 119
Joined: Fri Jul 01, 2005 2:44 pm
Bikes: 49 fl,71 honda 750 sohc k1,98 cbr600f3,2)gl1100 goldwings
Location: hopewell va
Contact:

#9

Post by rigidpanman » Fri Jul 28, 2006 9:26 pm

sure will

guest

#10

Post by guest » Sat Jul 29, 2006 1:58 am

mines 1962 pan kickstart compression hasn't changed. do you think i could
push start it or would it cause more problems. also i'm going to pick up a half a dozen plugs tomorrow any suggestions.
frank toronto canada are you anywhere close i'd like to see this pressure test in action.

rigidpanman
Posts: 119
Joined: Fri Jul 01, 2005 2:44 pm
Bikes: 49 fl,71 honda 750 sohc k1,98 cbr600f3,2)gl1100 goldwings
Location: hopewell va
Contact:

#11

Post by rigidpanman » Sat Jul 29, 2006 5:30 pm

did the test,leakin like a bitch on the rear spigot.shoved silicone all around it,tryin to rig it together for the time being.dont want to have to remove engine to pull head(engine is in a knuckle frame,therefore no room above the head).gonna let it sit till tomorrow and put it together and see what happens.

FRANKOVY1

#12

Post by FRANKOVY1 » Sat Jul 29, 2006 9:40 pm

I JUST CAME IN TO SEE WHAT HAPPENED THANKS KEEP ME INFORMED.
I TOOK THOSE CLAMPS OFF MY BIKE AND I FOUND THEY WHERE DRINCHED WITH GAS. I;M GOING OUT TOMORROW TO SEE IF I CAN
GET THOSE STAINLESS STEEL AIRCRAFT CLAMPS AND RIG UP A PRESURE TEST VALVE.
THANKS AGAIN

FRANKOVY1

#13

Post by FRANKOVY1 » Sun Jul 30, 2006 6:14 am

DID THE LEAK TEST HEAD GASKETS LEAK LIKE A NIGHT OF BEER DRINKING THERE SHOT. ON A 62 PAN DUO IS IT POSSIBLE TO TAKE HEADS OFF WITH OUT REMOVING ENGINE.

rigidpanman
Posts: 119
Joined: Fri Jul 01, 2005 2:44 pm
Bikes: 49 fl,71 honda 750 sohc k1,98 cbr600f3,2)gl1100 goldwings
Location: hopewell va
Contact:

#14

Post by rigidpanman » Sun Jul 30, 2006 2:44 pm

yea,you should have no problems with that.

Cotten
Posts: 6911
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

#15

Post by Cotten » Sun Jul 30, 2006 4:40 pm

rigidpanman!

P4gas turns sillycone to snot.

Why must you remove a head to replace your manifold?

...Cotten

Post Reply

Return to “Carburetor/Fuel system”