Vacuum line T on LH side of ST1100 Carbs.

[gofst62]

Going to set up the ST1100 (93 US) with some longer vacuum line for easier syc. I see the LH side has both lines going to a T which then disappears below the carbs. Can someone tell me where this goes to? My Haynes manual does not show it.THX

 

[John OoSTerhuis]

Hello __?__

That vacuum line goes to the Air Suction Valves (aka PAIR).

Regards, John :STOC: Ten Fifty-Eight

 

[gofst62]

THX for the info!

 

[Ken H]

Get or borrow an SK Flowmeter. Easiest way to sinch the carbs.

 

[Brant]

Get or borrow an SK Flowmeter. Easiest way to sinch the carbs.

Easiest, but not a true sync, as that involves any re-adjustment of fuel mixtures, which changes vaccum, which changes sync. That's the reason sync is CORRECTLY done with ALL intake components in place...........and any Honda tech. worth their salt will say the same thing.......as per Honda reccomendations. I would imagine the Flowmeter will surfice if carbs wern't partially dissasembled and all those settings were originally done using mercury stixs, and no mixture changes were needed........basicly a 'quickie' for checking throttle plates being set the same on all four carbs without any other fine tuning involved.