pod filters and carb jetting

[Rampant_ant]

hey guys. I've been pulling my 85 1100 apart just to tidy it up a bit and have decide to do away with the oem airbox.

I was wondering though..... Do any of you think I'm going to need to re-jet the carbs at all? Cause its got 4-1 extractors on it but I'm not sure what kind they are. I know they are in the way off the drain plug tho 
It runs properly as it is but will the pod filters effect anything?

Carbs are a bit before my time I guess haha

[SlowOldGuy]

If your slides have adjustable needles, lower the clip one groove (which raises the needle for a richer condition). 
If you don't have adjustable needles, then shim the needles about 0.5mm. 
You shouldn't need to change the jets.

DavidR.

[Pat Conlon]

I dunno David, it gets pretty toasty warm down under...I think his main jets need up sizing.
The Yamaha microfiche shows the euro '85 FJ to have 110 main jets and 40 pilot jets vs. the USA version's larger 112.5 mains and smaller 37.5 pilots (am I reading that right?) if so....

I know we spend very little time WFO on the main jets, and 80% of our time on the needles, but #110 mains are kinda small with pod filters and a 4-1 pipe. (#40 pilots are fine) considering the hot weather.

Fr Paddy

[Rampant_ant]

I dunno David, it gets pretty toasty warm down under...I think his main jets need up sizing.
The Yamaha microfiche shows the euro '85 FJ to have 110 main jets and 40 pilot jets vs. the USA version's larger 112.5 mains and smaller 37.5 pilots (am I reading that right?) if so....

I know we spend very little time WFO on the main jets, and 80% of our time on the needles, but #110 mains are kinda small with pod filters and a 4-1 pipe. (#40 pilots are fine) considering the hot weather.

Fr Paddy

Gotta love having aussies on here!
What kinda main do you think I would need?

[Pat Conlon]

I would start with 115's and on a hot day, with the engine well heat soaked, listen for ping under WFO.
If you plan on also running a 5 degree ignition advance plate, along with your pipe and pods, I would start at 117.5's..  Cheers!

[Rampant_ant]

I would start with 115's and on a hot day, with the engine well heat soaked, listen for ping under WFO.
If you plan on also running a 5 degree ignition advance plate, along with your pipe and pods, I would start at 117.5's..  Cheers!

Haha noob question......whats WFO?
I hadn't planned on running an advance plate. It was more of a "while if got it out" kind of situation. Would you recommend it?

Also I noticed the carbs don't have any mounting points other than the intake and the airbox. Do I need to make a bracket up or is it ok with it just hanging of the engine?

[Pat Conlon]

No worries mate, WFO = Wide fuckin open, or full throttle. That's when the main jets are doing their jobs feeding gas.

Ignition Advance plates are a poor man's option to one of those fancy Dyna 2000 ignition modules.
The 5* advance along with a header, Uni-pod filters and tuning helps wake up the low and mid range of the 1100/1200's
Do the relay mod to your coils while you're at it......

I would recommend against the individual K&N style paper air filters. Many folks have complained about ill fitting.
The current consensus is that the 2 stage foam Unipod filters are the preferred aftermarket filter set up for the FJ's.
No need for additional support for the filters, they are very light,  just oil and tighten the clamps and go....
Don't forget to order the crankcase breather filter.....

Randy @ RPM ships to Australia: http://www.rpmracingca.com/proddetail.asp?prod=Carb%3ARPMPod&cat=24  Cheers!  Pat

[racerrad8]

The current consensus is that the 2 stage foam Unipod filters are the preferred aftermarket filter set up for the FJ's.

Randy @ RPM ships to Australia: http://www.rpmracingca.com/proddetail.asp?prod=Carb%3ARPMPod&cat=24  Cheers!  Pat

And for a visual reason why K&N filters do not work...Here are the carbs I worked on today;
Randy - RPM

[Rampant_ant]

No worries mate, WFO = Wide fuckin open, or full throttle. That's when the main jets are doing their jobs feeding gas.

Ignition Advance plates are a poor man's option to one of those fancy Dyna 2000 ignition modules.
The 5* advance along with a header, Uni-pod filters and tuning helps wake up the low and mid range of the 1100/1200's
Do the relay mod to your coils while you're at it......

I would recommend against the individual K&N style paper air filters. Many folks have complained about ill fitting.
The current consensus is that the 2 stage foam Unipod filters are the preferred aftermarket filter set up for the FJ's.
No need for additional support for the filters, they are very light,  just oil and tighten the clamps and go....
Don't forget to order the crankcase breather filter.....

Randy @ RPM ships to Australia: http://www.rpmracingca.com/proddetail.asp?prod=Carb%3ARPMPod&cat=24  Cheers!  Pat

Haha the poor mans option sounds like a bit of me. Where can I get an ignition advancer? I was planning on gettin the uni pods from randy when I can seperate the visa from the missus. Haha and one of those smoked tail lights

Thanx mate
Kev

[craigo]

The current consensus is that the 2 stage foam Unipod filters are the preferred aftermarket filter set up for the FJ's.

Randy @ RPM ships to Australia: http://www.rpmracingca.com/proddetail.asp?prod=Carb%3ARPMPod&cat=24  Cheers!  Pat

And for a visual reason why K&N filters do not work...Here are the carbs I worked on today;
Randy - RPM

Randy,

Is this the K&N pods or the airbox filter that did this to these carbs?

Thanks,

CraigO
90FJ1200

[Marsh White]

K&N pod filters.  Just for the record; I would clean those filters at least every 3,000 miles.

[Rampant_ant]

So when you fit the pod filters is the whole carby and air filter assembly just held by the intake?

[Harvy]

So when you fit the pod filters is the whole carby and air filter assembly just held by the intake?

Sure is!

Have no fear, the intakes are quite capable of this......in reality, they are doing it even with the air box. The air box bolts are not supporting the carbs - the rubber components between the air box and the carbs are quite flexible and do not support the back inlet side of the carbs to any great degree.

The UNI dual pod filters weigh next door to nothing.

Harvy

[Rampant_ant]

Cheers thanx Harvy

[racerrad8]

Randy,

Is this the K&N pods or the airbox filter that did this to these carbs?

Thanks,

CraigO
90FJ1200

K&N pod filters.  Just for the record; I would clean those filters at least every 3,000 miles.

I am going to recommend a new set of UNI's when I send them back...

Randy - RPM