1100S Tube between Throttle Bodies

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Jamaica
Phlam
Posts: 1
Joined: Mon Mar 12, 2018 5:00 am

1100S Tube between Throttle Bodies

Postby Phlam » Mon Jun 11, 2018 5:30 am

My recent purchase, a 1999 R1100s came with a few obvious mods. remus exhaust, Y connection, K&N air filter. So far I'm pleased with the lot, but I am stumped with this one. There is a hose connecting the two throttle body synch ports. On the right side of the hose, just before it disappears below the battery box with the fuel hoses, there is a T connection and the port not connected to hose is capped. I assume the assembly is some sort of secondary synch device/balancing act. Is anyone familiar with this hose. Is it a mod or factory. I'm beginning to think it is part of a device that was removed.

Apologies if this has recently been addressed. I've been reading through post for the past couple months. I'm about midway through the 90+ pages. So far I haven't seen this hose mentioned.

Phlegm Phlam
R100/7
R1100S

User avatar Ireland
nab 301
Member
Posts: 2143
Joined: Sat Dec 04, 2004 6:41 pm
Location: Dublin Ireland

Re: 1100S Tube between Throttle Bodies

Postby nab 301 » Mon Jun 11, 2018 7:51 pm

Phlam wrote: There is a hose connecting the two throttle body synch ports. On the right side of the hose, just before it disappears below the battery box with the fuel hoses, there is a T connection and the port not connected to hose is capped. I assume the assembly is some sort of secondary synch device/balancing act. Is anyone familiar with this hose. Is it a mod or factory.

Phlegm Phlam
R100/7
R1100S


The throttle body vacuum ports have removable rubber plugs as standard, I don't know if linking the tb's is some sort of a mod . Some carbed bikes might be linked, and I don't know what sort of accessory would require a vacuum on a shaft drive bike .
The rubber plugs are cheap, so easy to return to factory...
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Nigel

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1999 R1100s (mandarin) '
'05 CBF250
'04 Breva 750
'98 NT650 Deauville (El Presidente)
MZ301 Saxon Fun ( currently retired)
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