Bimota Forum

brian · Joined: 22 Aug 2011 Posts: 3769 Location: Australia

A question for you sb6 freaks Wink

The airbox has a hole on the L/H front open to the engine side of the airfilter. There was no hose or plug in it.

My question is... is there a hose that's meant to go in it or a plug??

The hose that comes from the top of the tappet cover currently runs straight down the side of the engine and vents to air. Should this hose go into the airbox?

It will route that way and fit... just

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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

SiBag · Joined: 03 Mar 2012 Posts: 251 Location: Cheshire

Mine has the breather hose from the cylinder head cover (tappet cover)attached to the airbox.

oily · Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire

Yep, that's the one.......looks like you've still got the original Bimota breather hose Brian. You'd better buy some nice silicon hose to match your new hose kit Laughing

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SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
Sb6 or Sb7 WANTED

brian · Joined: 22 Aug 2011 Posts: 3769 Location: Australia

Sweet... that means i've hooked it up correctly. I've had the airbox out a couple times now and this is the first time i've noticed the hole. It's been open like at least since i've owned the bike and god knows how long before i bought it. Maybe the engines dusted, i think i should put a big bore kit in just in case Wink

Not sure if i've got the route of the hose correct as it was very tight to get it where i've run it. Down the left hand side of the engine where it was hanging then straight back through the rubber flap towards the airbox. I tried putting it over the top and down along the frame rail but it didn't look right. Where does yours run Si or oily?

Thanks fellas
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

oily · Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire

Down the frame rail where it don't look right Laughing

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SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
Sb6 or Sb7 WANTED

Evilchicken0 · Joined: 12 May 2010 Posts: 2996 Location: London

You'll need to be able to get at the hose to fill the engine oil
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Don't read everything you believe

Vince186 · Posted: Mon Apr 23, 2012 12:29 pm Post subject:

Hello sb6 specialists,
I noticed that the hose from the fairing to the airbox not installed is on my sb6. (Thanks to the pictures of Brian Confused

)
Now I wonder if the hose is important for engine performance, will it affect the air flow to the airbox in a better way or can I leave it as it is.
I have my doubts about the air hose, if it does not work then you better let the air hose away, it saves weight.
What do you experts think?

oily · Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire

I have never had the air hose fitted on any SB6 I've owned so can't comment on performance with it, but performance with out the hose is adequate Laughing

_________________
SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
Sb6 or Sb7 WANTED

Vince186 · Posted: Mon Apr 23, 2012 1:01 pm Post subject:

Evilchicken0 · Joined: 12 May 2010 Posts: 2996 Location: London

mine doesn't have it but it does have the hole for it ... I tried to retro fit one but just gave up, it seems to run ok without it.

You might want to ventilate the airbox on the shock side though.
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Don't read everything you believe

Vince186 · Posted: Mon Apr 23, 2012 1:43 pm Post subject:

brian · Joined: 22 Aug 2011 Posts: 3769 Location: Australia

In my opinion... it won't make an ounce of difference to performance either way. What is important though is the open hole in the airbox. It's on the engine side of the eilter so the engine will be unprotected from dust in dusty conditions. If there's no hose PLUG the hole.
_________________
'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

stockcar · Posted: Mon Apr 23, 2012 7:16 pm Post subject:

stockcar · Posted: Mon Apr 23, 2012 7:19 pm Post subject:

the engine breather is an emissions compliance thing, not performance enhancing or any real downsides either way..........

only thing i would do is if you have the breather hose open to "atmosphere" i would plug the hiole in the front cover, as said above, this will stop the motor ingesting dirt and rubbish

also no reason to make holes on the other side it isn't a fully "sealed" system

CBar · Joined: 05 Jan 2010 Posts: 142 Location: Texas

I cut out my airbox on the shock side and it made a huge difference. So much that I had to cover it up with tape until I could order a jet kit.

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