750S airbox what are all those hoses ?

discussion about the 750 Sport and '89/'90 900SS, which share many mechanicals with the Paso series
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paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

750S airbox what are all those hoses ?

Post by paso750 »

I`ve never seen an airbox like the one on the left. (also that reed valve. The 750S airbox I have only has a rubber flap)

G.
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bmw851
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Joined: Tue Mar 13, 2012 9:02 am
model: other
year: 1988
Location: The Blue Mountains, NSW, Australia

Re: 750S airbox what are all those hoses ?

Post by bmw851 »

Hey G,

Not ever having had an airbox on the Sport, but that looks like something specific for a US market model, have seen similar things in pictures of Airheads in the US on other sites, it's all for additional emission control or some such.

Maxfiche show this for a US R Series mono shock which was nearly the last of the aircooled "pure road" bikes (don't want to upset the G/S and GS crowd)

Cheers

Peter
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So long, and thanks for all the fish...............

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ir_joep
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Joined: Sun Jul 26, 2009 7:35 pm
model: 750 Sport
year: 1989
Location: Haarlem, The Netherlands

Re: 750S airbox what are all those hoses ?

Post by ir_joep »

Hi,

My Sport has the reed valve as indicated on the picture.

I also believe all the tubing and such on the left are for some hydrocarbon vapour control to lower harmfull emissions. My Sport has not been fitted with that.

In addition to the topic of airboxes. I came acrosss the 400cc sport which has fitted with Mikunis as standard according to Ian Fallon two valve restoration guide. I wonder what kind of airbox is on that model?

KR Joep
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