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84’ 1100 Need a visual and then some

Started by Chipmunk Breath, September 01, 2025, 07:35:12 PM

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Chipmunk Breath

Got this bike from a barn.
It had K&N filters on the carbs and a piece or car heater hose clamped onto the crankcase breather pipe and another washable kind of filter thing poked into it. All of that is now in a box under the bench. Ugh. I have an airbox to install once I rebuild the carbs, replace stiff fuel lines, etc. I have a manual from Yamaha but I can't seem to remember from 1987 when I had my last one apart— how and what- the breather parts and layout is. Does anyone have photo of the view under the airbox is supposed to look like? Sorry so long winded... 

Chipmunk Breath

PS= meant no offense to anyone running the filter pods. I just prefer airbox.

86FJNJ

After trying to reinstall my stock airbox I got frustrated and purchased pods from RPM and am very glad I did. I've restored my bike over the past year and the carbs have had to come off and on again probably 20-30 times as I sorted out issues on the bike and found the best carb jets etc. The dual K&N filters they run on Legend race cars wont fit the FJ, they hit the tail frame on the sides.

https://www.rpmracingca.com/proddetail.asp?prod=Carb%3ARPMPod&cat=24
1986 FJ1200 converted to Fuel Pump

Waiex191

All my airbox stuff is on or after this page;
https://fjowners.com/index.php?topic=19343.135

I can get pictures, if I understand what you want to see.
Bryan
1989 FJ1200
1981 Suzuki GN400
Poplar Grove, IL
 

Chipmunk Breath

Thanks!
I am trying to figure out this URL thing for posting pictures here. Then I will post a photo or two of what I have in front of me to hopefully get support.

Dads_FJ

Quote from: Chipmunk Breath on September 02, 2025, 09:44:00 AMPS= meant no offense to anyone running the filter pods. I just prefer airbox.

Ditto.  I tried the dual pods but the intake noise was too much so sold 'em and went back to the air box.  I will admit though the hardest part with reinstalling the air box is connecting the crankcase breather to it.  Other than that it's not that bad.
John S.

'84 Yamaha FJ1100
'89 Yamaha FJ1250 (XJR top-end)
'93 Yamaha TDM 850 (x2)
'06 Ducati ST3
'94 Yamaha WR250
'80 BMW R100S/Sidecar
'39 BSA WM20

Waiex191

Quote from: Dads_FJ on September 02, 2025, 06:43:47 PMI will admit though the hardest part with reinstalling the air box is connecting the crankcase breather to it.
I get it lined up and push it in with the flat of a large screwdriver from above.
Bryan
1989 FJ1200
1981 Suzuki GN400
Poplar Grove, IL
 

Pat Conlon

I remember dealing with that pesky crankcase vent.

I threw away the plastic elbow and put one of these on..



I could easily poke the threaded side into the air box and reaching into the box, capture it, slip on a washer, and thread on and tighten the nut.
I did use 2 sealing washers, one inside the box and one on the outside.

 

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

Dads_FJ

Quote from: Pat Conlon on September 02, 2025, 07:43:52 PMI remember dealing with that pesky crankcase vent.

I threw away the plastic elbow and put one of these on..

I could easily poke the threaded side into the air box and reaching into the box, capture it, slip on a washer, and thread on and tighten the nut.
I did use 2 sealing washers, one inside the box and one on the outside.




Next stop Ace hardware.  Thanks Pat
John S.

'84 Yamaha FJ1100
'89 Yamaha FJ1250 (XJR top-end)
'93 Yamaha TDM 850 (x2)
'06 Ducati ST3
'94 Yamaha WR250
'80 BMW R100S/Sidecar
'39 BSA WM20

Chipmunk Breath

No luck loading pics here.
What I am looking for is images of the fuel supply line and carb breather routing. OEM set up.

maverick9611

85 fj1100