98 cb250 carb issues

[Red23]

Hi all

just bought a 98 cb250, and the carb is pissing fuel out the breather at the bottom which is causing the engine to stop.

The bike has been sitting for 3 months, I was wondering if I should put a carb kit through it or if it just sounds like a good dose of carb clean to fix it up?

I plan on rejetting anyway later on when I get the cash up to replace the exhaust and filter.

Cheers

 

[stubanger]

Pull the fuel bowl off and check float level.

 

[Red23]

I pulled it off and had a look, it all seems good. Sprayed the buggery out if it with carb clean. Hopefully it'll do the job.

Have a question about a couple if things though. In the attachment you can see two points for hoses labelled A + B. Is the one with the hose still on a breather? There doesn't seem to be anywhere for it to go other than the fuel tap and I'm pretty certain that is where A goes.

Also what is the purpose of C? On my little bike I tightened up that and it stopped coming out of the hose, not sure if that helped just hid the problem.

Cheers

Glenn

Sent from my HTC One XL

 

[sprocket2cog]

hi, ive got an old 96 cb nighthawk, the hose on A is a breather hose, b is the fuel in, and c is the fuel bowl drain screw.

 

[Red23]

thanks mate, that would've been stupid if I had've put it together the other way around lol.

is it a concern that I cannot budge that drain screw? I guess it would be something you would play with on services or after sitting around for a while, not for fine tuning or anything

 

[sprocket2cog]

it shouldnt be a worry as long as its not leaking out the bottom of the float bowl, its to drain stale fuel and any moisture if its been sitting. take the float bowl off and clean it out that way.
when i get screws that are stuck i use my cordless drill with different torque settings to vibrate them out, just set the drill on number 1 or 2 to start with , make sure the drill is in reverse and try to vibrate it out,
(ive accidently tried to take a screw out in forward gear.. it just ends in tears when you strip the head)
turn the setting on the drill up one notch at a time until it comes out.
but take it easy so you dont strip the head.