Author Topic: 1978 CB750F - Stalling  (Read 1139 times)

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Offline cgarbe

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1978 CB750F - Stalling
« on: July 16, 2014, 10:59:20 AM »
Hey all,

so took the 750F out last night and it kept stalling at stoplights. I know it's probably operator error however after riding it for a year I'm pretty certain I got the feel of the clutch and gas down. Is there anything that would be causing it to stall more than usual or something that changed that clutch/gas feel?

Thanks!
Chris
1975 Honda CB400F
1978 Honda CB750F

Offline TwoTired

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Re: 1978 CB750F - Stalling
« Reply #1 on: July 16, 2014, 02:29:21 PM »
Carnack the Great presses the computer screen against his forehead.  After a moment of thought he says...

What do bikes do when they run low on gas?

No wait...
What do bikes do when they have bad gas?

Then another question...
What do bikes do that haven't had their 3K mile or 6 month tune up?

And finally...
What type of gum forms when ethanol gas sits for more than 3 months?
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline Davidov

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  • 1978 CB750 F3
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Re: 1978 CB750F - Stalling
« Reply #2 on: July 16, 2014, 02:40:51 PM »
Tune up must be in check first.

If you're talking about a sudden "lurch" at the end of the clutch release point, it could be worn out clutch components.
-David

Offline flybox1

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Re: 1978 CB750F - Stalling
« Reply #3 on: July 17, 2014, 09:57:35 AM »
turn up your idle set screw
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mineā€¦"

Offline jtb

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Re: 1978 CB750F - Stalling
« Reply #4 on: July 18, 2014, 07:49:13 PM »
Carnack the Great presses the computer screen against his forehead.  After a moment of thought he says...

What do bikes do when they run low on gas?

No wait...
What do bikes do when they have bad gas?

Then another question...
What do bikes do that haven't had their 3K mile or 6 month tune up?

And finally...
What type of gum forms when ethanol gas sits for more than 3 months?

I thought it was Carnak the Magnificent.  How are you, Lloyd.  I finally bought a 1985 V65 Sabre, and I love it.
1977 CB750F
1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)

Offline lucky

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Re: 1978 CB750F - Stalling
« Reply #5 on: July 20, 2014, 02:46:14 PM »
Clogged idle jets are possible. Was it sitting around for a while?

Offline cgarbe

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Re: 1978 CB750F - Stalling
« Reply #6 on: July 25, 2014, 05:46:23 AM »
I didn't ride it for probably a month or two.
1975 Honda CB400F
1978 Honda CB750F