12-12-2015, 08:35 AM
Anyone remove the smog junk? The way the system works on the CB1100 is pretty much the same as they all do... I think it is called AIS or air induction system.
There is a vacuum switch which opens reed valves up on the front of the valve cover. The reed valves connect to the vacuum switch which is controlled by engine vacuum picked up from a smaller line from the carburetors. I think I saw another larger line going to the air box. What happens is that the reed valves open and crud is dumped down to in front of the exhaust ports and burned and anything that isn't burned is dumped into the air clear to be burned in combustion.
In general, the hole in the air box where the hose came in should be plugged (not that important I think) and the two reed valve snouts where the hoses connect need to be plugged so they are not open to the air in the event of a backfire and the vacuum fitting on the FI unit where the vacuum line came off needs to be capped.
The top of the engine is a mess the way it is with that plastic tray thing and all the electronics connected... once again Honda has done their best to confound but getting rid of the smog junk would be a step in the right direction. I don't think there is any electonic hooked to the system. Am I wrong?
There is a vacuum switch which opens reed valves up on the front of the valve cover. The reed valves connect to the vacuum switch which is controlled by engine vacuum picked up from a smaller line from the carburetors. I think I saw another larger line going to the air box. What happens is that the reed valves open and crud is dumped down to in front of the exhaust ports and burned and anything that isn't burned is dumped into the air clear to be burned in combustion.
In general, the hole in the air box where the hose came in should be plugged (not that important I think) and the two reed valve snouts where the hoses connect need to be plugged so they are not open to the air in the event of a backfire and the vacuum fitting on the FI unit where the vacuum line came off needs to be capped.
The top of the engine is a mess the way it is with that plastic tray thing and all the electronics connected... once again Honda has done their best to confound but getting rid of the smog junk would be a step in the right direction. I don't think there is any electonic hooked to the system. Am I wrong?