In love with the 1100 again!

[MarkShelley]

After having endured the dreaded low speed stuttering and surging for the last few months and made no improvement after doing the valves and the throttle body balance I finally decided to try the catcode plug removal tonight. Just got back from a test run during which I did my utmost to get it to misbehave but it was an amazing transformation. Utterly smooth. I am so happy as I had begun to stop using the bike and was taking my old XTZ660 on some pretty long trips instead. I will keep an eye on the plug colours over the next couple of tank fulls just to be safe.

 

[darrenptalbot]

I'd be interested to hear what it does to your fuel economy - it savaged mine (down to about 30mpg, from 50+), so I had to put the CCP back in again

 

[roddy]

I had the same reaction when I took the CCP out of the old 1100, I found the plugs did change colour a fraction but nothing to be concerned about if anything they went a touch richer, which I think is what partly helped with the smooth engine deliverly

 

[Stewart H]

My fuel economy went down the pan when I removed the plug, I find that careful valve clearance and a good balance works for mine.

 

[AussieMattGS]

Have recently removed the CAT Code plug as well and fuel economy went from 320km's for 18 litres to 230kms for the same. Bike is much smoother now, I had the same surging issues which were making it painful to ride.

BTW I am in Oz, not sure if we have the same cat code setup for our models as yours. Mine is a 94 1100GS. I have no cat converter and run a staintune pipe.

Matt

 

[MarkShelley]

Since removing the catcode plug it would appear that it uses a fair bit more fuel when slow riding/riding in traffic around town than blasting along on the motorway.
Before removing the plug I always got about 10miles/liter no matter how it was ridden. Now, on long journeys at motorway speeds I am not seeing much difference and still getting 10miles/litre (45mpg), but after a week using it solely for my 10 mile each way commute I was down to 8miles/litre (36mpg). Luckily it usually gets used for longer faster trips!

 

[Steptoe]

Using more fuel ?? Lean off the mixture at the CO pot.

 

[MarkShelley]

Using more fuel ?? Lean off the mixture at the CO pot.

I have done a search on the CO pot and the info I have gleaned is as follows;-
It adjusts the mixture at low revs only (which is what I want I guess)
Only make small adjustments at a time

Is this correct?
A rather embarrasing question, but where is it located? Also, if it is screw adjustment which way do you turn to make it leaner?

 

[John Armstrong]

A rather embarrasing question, but where is it located? Also, if it is screw adjustment which way do you turn to make it leaner?

Under the pillion seat on the rh side (as you sit in the bike) and from memory it can be got at from underneath as there's a hole in the plastic trim.

 

[MarkShelley]

Under the pillion seat on the rh side (as you sit in the bike) and from memory it can be got at from underneath as there's a hole in the plastic trim.

Under the tool tray then? When you say it can be got at from underneath, do you mean from underneath the seat (but accessed from above) or underneath from below (via the mudguard area)

 

[John Armstrong]

Under the tool tray then? When you say it can be got at from underneath, do you mean from underneath the seat (but accessed from above) or underneath from below (via the mudguard area)

Some other threads:

http://www.ukgser.com/forums/showthread.php?t=196464

http://www.ukgser.com/forums/showthread.php?t=232931

And an ebay piccy

 

[Stewart H]

If you bend right down and look upwards from the right side pillion footrest area you will see a round hole in the tailpiece bodywork, its behind there, brass screw slotted head, clockwise to weaken, go too far and it goes back to the start, you need a CO Meter really.