Triumphrat

georider · 11-29-2012, 02:14 PM

Ah! This is an high performance airbox intake from an husqvarna TC 250R
There it is, the "reverse" bell mouth.

Retro-Racer · 11-29-2012, 06:15 PM

Suck on this.... errrr... these!

/M

B02S4 · 11-29-2012, 08:30 PM

Quote:

Originally Posted by Retro-Racer

Suck on this.... errrr... these!...

Pity they have chrome-cap K&N's, eh?

Texstrom · 04-16-2013, 07:36 AM

Quote:

Originally Posted by Forchetto

It's a sound control device loosely slotted inside the airbox. Its purpose is to reduce the intake roar noise although it also robs you of around 3 hp. To recover those hp, carbed bikes need re-jetting and EFI bikes need re-mapping of the ECU as well as air intake snorkel removal.

It's the yellow thing shown here:

Removal instructions and an explanation of its purpose are all over this forum and also at
TTP's site:

http://www.triumphtwinpower.com/triu...le-removal.php

Could one not compensate for the "lean runnning " by adjusting the pilot screws? Is a re -jet absolutely necessary? I just am reluctant to get into carbs and the mystery of corect jets etc.

alexibrow · 04-16-2013, 07:47 AM

Simply put:

The pilot screws adjust the air/fuel mixture at/just off idle.

Needle height affects the mixture around mid throttle openings.

Main jet size affects the mixture at full throttle.

This is an oversimplification, but in general you won't normally get away with adjusting just one fuel circuit if you make significant changes to the intake and/ or exhaust systems.

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