81 xj 550 fuel leak from air intake??????

im having a issue with major amount of fuel leaking from carb. float was stuck fixed that. are the floats adjusted wrong? fuel seams to come out of 2 holes on intake side, any suggestions sorry if this was discussed i couldnt find any thing.

 

did you check and set the float levels?

FU

 

Definitley leaking past your float valve either float sticking again or adjustment of float wrong, or float needle damaged or o ring around brass seat damaged.

 

hmm how to adjust float ?

 

do a search through the forums for carbs, but if you freed off stuck float then i assume you had the bowl off? If you did you would see the tang moves the float needle in to the seated postion. This can be adjusted to seat the float needle sooner by bending with radio pliers or small screwdriver. Best to check condition of all components and o rings when in there. Small adjustments remeber and then do a wet bench test as described by many in the forums or even look up you tube for a video. Best do all 4 carbs to get levels within spec.

 

Don't just assume that adjusting the float will fix your problem. Service the carbs on your bike. You will probably be the first person that has.
http://www.xjbikes.com/forums/index.php?threads/in-the-church-of-clean.14692/

 

this is likely the real issue with your mikuni carbs...



FU

 

Thanks guys I'll pull it back apart tonight and see If I can get it right

 

Yep - had that problem once with gas flowing around the outside of a "loose" seat - its actually the o-ring around the seat that fails.

 

Cyclonenood they are pretty tight they have to be pushed in

 

soo... did you perform a "wet set" of the floats before reinstalling the carbs?

FU

 

Yes I preformed a wet test floats where set too high they where all over the place when I had the bowl of and compared them. Did a detailed cleaning while they where apart suprised how clean they where for sitting for ten plus years. I just need to get a jet kit and replace them. So I happy now no more leaks. Idle like a champ once the engine is warm. I just need to fix the exshaust leak from the headers, paint and my xj bobber projects done

 

Thanks