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75 CB750F running issues... FUEL TANK VENT?

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Ronnio

75 CB750F running issues... FUEL TANK VENT?

Hey guys,

Having a bit of a problem at times with my bike. Its a 75 SS and it has pods on it. You can laugh if ya want, but I just finished it after years of work and I wanted to ride it, so I taped off the filters to immitate stock air intake. I don't know if this is relevant, but I wanted to include that just in case. Here is my problem..... From time to time, I will start my bike, get about 100 yds down the road and it will start sputtering like CRAZY and I do everything in my power to keep it running but usually fail. I start it back up, fight to keep it goin and after a minute or so of sputter sputter sputter, choke on choke off, it will start running great again. Feels like my 900RR used to feel when my vent hose was pinched, but I thought the caps on these tanks were vented so I dont think thats the problem. Any ideas?

TOOLS1

Re: 75 CB750F running issues... FUEL TANK VENT?

Administrator

The vents on the caps will plug up, so when it starts sputtering, open the cap to see if it will run. Also check the petcock, and fuel line.
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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
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rrgunslinger

Re: 75 CB750F running issues... FUEL TANK VENT?

In reply to this post by Ronnio

Next time pop the gas cap and see if it clears up.

On Fri, Jun 22, 2012 at 9:10 AM, Ronnio [via Honda CB750'S] <[hidden email]> wrote:

Hey guys,

Having a bit of a problem at times with my bike. Its a 75 SS and it has pods on it. You can laugh if ya want, but I just finished it after years of work and I wanted to ride it, so I taped off the filters to immitate stock air intake. I don't know if this is relevant, but I wanted to include that just in case. Here is my problem..... From time to time, I will start my bike, get about 100 yds down the road and it will start sputtering like CRAZY and I do everything in my power to keep it running but usually fail. I start it back up, fight to keep it goin and after a minute or so of sputter sputter sputter, choke on choke off, it will start running great again. Feels like my 900RR used to feel when my vent hose was pinched, but I thought the caps on these tanks were vented so I dont think thats the problem. Any ideas?

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Jeremy

Re: 75 CB750F running issues... FUEL TANK VENT?

Is your choke sticking. Sometimes the slides stick a little and messing with them frees them up.

Jeremy

Re: 75 CB750F running issues... FUEL TANK VENT?

I said slides. My apologies I meant choke plungers.