CB1100 Idle speed instability problem

[Magnus_imp]

On our CB1100 there is just no room to remove the IACV even if you could get the retaining screws off. The airbox totally blocks it and no way of getting the throttle bodies out as far as I can tell without removing the airbox.

Dave, open the vid. Run the cursor to the 19 min point and click run.

Personally, I’m not seeing it. He already has the throttle body off the bike (not a CB1100).

The end was pretty neat where he shows his rig for cleaning injectors.

So what would happen if you leave the whole bike intact, lift the tank, remove only the right hand black throttle body cover and just take out the three security torx screws for the iacv plate from the top.
unclip the 4 pole connector and lift the iacv up and out of the bike, swap the iacv, put the plate with new iacv back in the bike and re-connect the 4 pole connector; that's all.

That is what he does at 20 minutes, our bike stays together.
Yes it's a different model bike but the throttle body is the same.

What do you think, Dave?

Even if you are taking your time it could be swapped inside one hour.
Does the service manual mention anything about replacing the iacv popgun?

So what would happen if you leave the whole bike intact, lift the tank, remove only the right hand black throttle body cover and just take out the three security torx screws for the iacv plate from the top.
unclip the 4 pole connector and lift the iacv up and out of the bike, swap the iacv, put the plate with new iacv back in the bike and re-connect the 4 pole connector; that's all.

That is what he does at 20 minutes, our bike stays together.
Yes it's a different model bike but the throttle body is the same.

What do you think, Dave?

Even if you are taking your time it could be swapped inside one hour.
Does the service manual mention anything about replacing the iacv popgun? I believe the IACV is not accessed via the area you marked. It is mounted to the other side of the throttle body

Just looking at a picture that i "found" on ebay for a cb1100 throttle body it seems identical to the one in the video, looking at the right hand housing with the two rubber hoses.



looks at least "plausible" to me but would work better if the locking plate and the hoses were pulled out of the iacv assembly by removing the single screw first in any order.



Yellow line points to single screw to be removed first for better access to iacv assy.

You can see where the assy splits from the throttle body near the blue felt tip mark and the same place as the other hose plate on the left.
Cick and click again for large picture on the point where you want to view close up.