85 FJ1100 Fuel Dripping From #2 K&N Pod Filer While Running

Started by Cat Cracker, May 02, 2022, 08:46:13 AM

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Cat Cracker

Recently ultrasonic cleaned carbs & replaced needle seats & needles on them. Started right up & set idle. After a few minutes I noticed fuel dripping from #2 carb pod filter. Nothing coming from overflow. I have set all float heights at correct levels. Any ideas or suggestions before I have to remove & open them up?            Thanks.
Barry Lupton 1985 Yamaha FJ 1100

2001 Kawasaki ZRX1200R
1980 Yamaha RD 350LC
1984 Yamaha RD 350 YPVS
1975 Honda 400 Four Super Sport , Yoshimura Big bore Kit,           Box Section Swing Arm
1982 Kawasaki Z 400 J
1983 Kawasaki GPz 1100

giantkiller

Could be a stuck float. Tap. On the float bowl see if that works.
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Cat Cracker

I tried tapping on the bowl & carb but still drips from pod but only when running. I dont understand why fuel isnt comming out of overflow if the float or needle is stuck.
Barry Lupton 1985 Yamaha FJ 1100

2001 Kawasaki ZRX1200R
1980 Yamaha RD 350LC
1984 Yamaha RD 350 YPVS
1975 Honda 400 Four Super Sport , Yoshimura Big bore Kit,           Box Section Swing Arm
1982 Kawasaki Z 400 J
1983 Kawasaki GPz 1100

fj1289

It can take a pretty aggressive "tap" - I've had to whack one a lot harder than I'd like.

What does the fuel filter look like?  Is there rust or trash in the tank?  People have blown air back thru the vent tube to clear some crud from the needle seat before with success.   

If you can get it running - try to ride it around the block - hit some bumps and get some good vibrations going through it.  I honestly think clean carbs are sometimes a bit "sticky" - only time I've had floats stick or slides stick have been right after a really good carb cleaning!

Cat Cracker

Thanks,
It's running fine.  Just dripping fuel from #2 pod. Time to get busy & smack it a little harder, I guess !
Barry Lupton 1985 Yamaha FJ 1100

2001 Kawasaki ZRX1200R
1980 Yamaha RD 350LC
1984 Yamaha RD 350 YPVS
1975 Honda 400 Four Super Sport , Yoshimura Big bore Kit,           Box Section Swing Arm
1982 Kawasaki Z 400 J
1983 Kawasaki GPz 1100

Pat Conlon

Quote from: Cat Cracker on May 03, 2022, 05:59:35 AM
....Time to get busy & smack it a little harder, I guess !

....or, you could just drop the fuel bowl and wiggle the float up and down with your finger.
You have K&N pods so it's easy to get in there...

Get some clear tubing and check your fuel level.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3