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+--- Thread: Carb Leak (/showthread.php?tid=83934)
Carb Leak - geoffb - 10-12-25
Hi all,
My Box Eye had been laid up for a while and I have now replaced the battery. She starts and runs fine but carb #3 is leaking slowly through the overflow while running. I have a fair bit of experience with 40+ year old 2-strokes with carbs and assume the same float valve issues exist on the 4-stroke carb based Fazers too.
Any tips on what to look for and replace when I take a look over the Christmas holidays? I’m assuming the float valve and float bowl gasket as a minimum. Would you do all 4?
All the best
Geoff
RE: Carb Leak - unfazed - 11-12-25
(10-12-25, 10:40 PM)geoffb Wrote: Hi all,
My Box Eye had been laid up for a while and I have now replaced the battery. She starts and runs fine but carb #3 is leaking slowly through the overflow while running. I have a fair bit of experience with 40+ year old 2-strokes with carbs and assume the same float valve issues exist on the 4-stroke carb based Fazers too.
Any tips on what to look for and replace when I take a look over the Christmas holidays? I’m assuming the float valve and float bowl gasket as a minimum. Would you do all 4?
All the best
Geoff
O-rings perished cracked or gone hard is usually reason.
Sizes
Float valve: 7.5mm ID x 1.5mm cross section
Main Jet: 5.5mm ID x 1.5mm cross section
Viton is the best option for the O-Rings
RE: Carb Leak - geoffb - 11-12-25
@unfazed Thank you