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PostPosted: Wed Jul 01, 2020 3:07 pm 

Joined: Sun Apr 25, 2010 4:52 pm
Posts: 1192
Current ride: S1wl IronhorseSunday
Location: north wales
My s1w has a Mikuni HSR42 carb, the petrol is really pissing out of the float bowl over flow pipe.
Its had this carb for 10 yrs and ive never noticed the overflow pipe being even wet.
So when you turn on the petrol tap unless you fire it up quick fuel flows at a pretty fast drip from the overflow pipe. It still drips slowly with engine running.
It also drips for a while after killing the engine and closing the petrol tap.
The tank has just been stripped and sealed and on putting it back i checked the petrol tap and all ok

Could there be a blockage in the carb somewhere that is causing this.
Its a bit worrying because wherever you park it there is always a crowd of buell lickers slavering over it often with lit cigaretes :roll:
Any ideas much appreciated.

Buelling is exhillarating
But downhill bike racing is so terrifying it makes your arse grow teeth

PostPosted: Wed Jul 01, 2020 3:36 pm 
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Joined: Wed Apr 15, 2009 5:17 pm
Posts: 8409
Location: Manchester
Debris from the tank has propped the float valve open.
You'll need to clean this and the fuel line and then fit an in-line filter.

Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR

PostPosted: Fri Jul 03, 2020 9:05 am 
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Joined: Wed Apr 15, 2009 5:25 pm
Posts: 11778
Location: Oswestry
:yt: When it floods, have you tried giving the float bowl a sharp tap with a screwdriver handle etc. This often cures a sticky needle valve on Brit bikes. Amals are also prone to doing this - regularly.

If your dreams don't scare you, they are not big enough.

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