Triumphrat

SSLFG

Upon installing new exhaust, I had intended to put a K&N air filter in the Air Box at the same time I was rejetting. As this is the first time I've dealt with Air Box Anxiety, induced by this blip in Triumph technology, I am looking at ordering pod filters and have gleaned the following information after hours of scouring threads:

- K&N RU-2780 pods (please confirm or correct)?

- Will these filters fit on all three carbs, including the middle?

- K&N Breather Filter part number ________ ?

- Carb supports if any _________?

- Ordering 40 & 42 pilots and have 120 mains on hand, any other suggestions_________?

Anyone with pods have issues in the rain? Any other mod suggested?
My Legend is currently in pieces as I order await answers/confirmations.

I realize there are some opposed to pod filters, but I just can't seem to get my brain around the OEM set up. I have future mods that will require considerable adjusting and I'm not all that interested in dealing with that air box monstrosity ever again if I can help it.

All input welcome!
Will provide pics of final filter mods and have pics of bracket mods for the D&D, which sound unbelievable even with the adjustments still needed. Simple mods for these awesome mufflers!

Thanks!

jimmyj900

The #38 pilot jets are quite adequate if they're clean!

#40 and larger will give you soggy performance at small throttle settings, but you should definately experiment and adjust the bike to your liking.

The consensus setting for the mixture screws is 2-1/2 turns and that's a very good place to start.

The main jet size will be determined by how the bike behaves, but definately check the 'Proven Setups' for what other folks have done.

Carb supports haven't proven to be necessary with the modded Trophy filter box I'm running and that's been kind of hanging in midair for the last 10,000 miles or so.

Jim

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ShikePoke

I have a Legend TT that's been modded, check the proven setups, but I still have the 38 pilots, only @ 3.5 turns rather than 2.5, and 128 mains. It may be a little bit rich at idle, but I've heard that lean is mean, for a little while...then you'll have real problems.

My pods are from Emgo, they are about 9 dollars a piece, very affordable, you can check my member album for a good picture. I can't speak for any other pods, as I haven't tried them, but I have ridden in the rain, no problems. I would have to check my paperwork for the right sizing...

Poke

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SSLFG

Jimmy, Poke, Al,

Just changed out my mains (138's), left stock pilots, 2 shims, and will give it 3.5 turns...

As I pull the Air filters out of the box its clear they won't fit directly on the carbs, now what? I thought the RU-2780's were a fit? Didn't see any info on adapters?

Guess I won't be getting it back together tonight... and probably not until I hear back from someone who has done this mod.

A little help here, please...

jimmyj900

I hope you mean 128 and not 138. I'm only running 130 mains with a lot more airflow than you'll get from pods. You'll know if it bogs at about 5000 rpm.

The mixture screws are mostly for idle although there is a very small contribution to the pilot jet mixture. I think 3.5 turns is about 1 turn too many.

Can't help on fitting the pods. I don't use them.

Jim

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SSLFG

Was given this setup as a starting point by a person who had a successful dyno on another bike in the past. My bike was already running lean when I put D&D exhaust on it and now the filters... I am fully prepared to back down a bit if needed. I did notice your setup as well but considered that you still have an air box, even if modded. I'll get it as close as possible and then dyno it next week for fine tuning. Might very well end up with 128's anyway. Thanks a bunch for the input! I'm open to whatever help I can get.

Either way, I won't be doing anything until I figure how to attach the pods...

Woody1911a1

ditto on what jimmy said i'm running tor's and a very drilled airbox w/a k&n 120 mains and i'm still a lil rich . at 3 1/2 turns you're at the edge of adjustment . i had to go to 42 pilots on mine (yea i know everyones going to say bla bla ) well every bike's different

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SSLFG

Seems I've got bigger issues. The width of the filter at the most narrow point is 9.5cm while the distance between the carbs is 9cm max. That seems to be a non-negotiable.
The opening in the carb is 5.5cm od, but the filter id is 6cm. I imagine this could be adapted but it's a moot point if the filters can't fit side by side.

Unless anyone can tell me otherwise, it seems apparent that the ru-2780 is not a fit for the Legend. On to the K&N site to find suitable filters.

SSLFG

Anybody have spare jets to drop in the mail?
My guy has a Bonneville with many mods so he has 2 of a few sizes... If you have any of the following I would gladly buy ($)them:

1 each 128, 132 and 135 mains

1 each 40 and 42 pilot

I'd like to have them on hand in the event these 138s prove to be unsuitable.

oil-spitn-rat

I love the look of them, nothing looks better. Performance is good too. No issues with the rain, but I do have issues with cross winds, passing tractor trailers and such when these things happen I get a leaning out and the bike does suffer performance a bit. Generally a good twist of the wrist will take care of it but it is annoying. The other issue I have is cold start is difficult.

I can't give you too much jet advice as I leave that up to the professional with the dyno. The asre-dyno works but theres no substitute for a pro with the right experience and equip. Look at the dyno chart I have listed and see how linear the power delievery is on my TBS. It runs so nice and so smooth top to bottom. Only change I would have made is the airbox/pods, I think I would have made an airbox tuned to my tastes.

Good Luck

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