NPS

It sounds like the pistons in the caliper are not free to move back. This is likely to be corrosion of the piston/Cylinder walls. You can try pumping out the pistons by operating the brake with the caliper off the bike. Once out clean the piston and cylinder of any corrosion and reassemble with a little brake grease. Change fluid and bleed. Hopefully the seals are not damaged. Sometimes the corrosion comes from water in the brake fluid. Sometimes from damaged piston seals.

If it was me I would look on the end of the selector drum and note the position of the contact that switches the neutral indicator switch. Alternatively, you can find first gear and rotate the selector back from that before second gear is engages. Shouldn't be too difficult. Others may have a better suggestion according to experience or manual.

I have a Breva 1100 which is fitted with wide-band lambda. The bike runs ok in closed loop mode using the lambda signal to run around 14.7 AFR. However, in open loop mode when warming up the engine runs rich at about 12 - 13 AFR. Below 8C the ECU never goes into closed loop mode. Between 8-10C it may take as long as 30 minutes to switch to closed loop mode. In wide open throttle it goes to open loop and the AFR can drop to 11. A solution that appears to work quite well is to place a 2400 ohm resistor in parallel across the inlet air temperature thermister located in the airbox. This fools the ECU to thinking that the air temperature is around 38C warmer. The result is that the ECU switches to closed loop within a minute or so of starting (could be longer to warm up more). In addition, the wide open throttle AFR is now around 12.5 - less lickley to hesitate as it did before being over rich. This due to hotter air being less dense and requriing less fuel. I'm sure this has been done before but just thought others might benefit from my experience, especially in colder climates. To lessen the effect a resistor of 4k or 6k could be used for 28C and 20C, respectively.

Sorry please ignore. I found it on the dash black plug pins 26 and 27

I'm trying to find this illusive device (dont ask me why) on a Breva 1100. I have seen in the service manual for the Breva that it is located in the dash. But when the circuit diagrams are studied it is only shown attached to pins 20 and 29 of the ECU body connector. This would infer that it is located not in the dash but at the front of the bike somewhere. Does any one have an ideas?

It is worth checking that the your plug caps have no cracks and leads are in good condition. I once had a misfire similar to what you describe and was due to a cracked NGK plug cap. At night you could try spraying a mist of water around the ignition leads, caps and coils and see if you can see any arks(shorts).

I have just bought a Breva too. I love seating position. Very comfortable. I cut (hacksaw ans filed) the top of my screen. About 2 inches. Makes all the difference. No buffeting or massively reduced. The engine could do with more poke, however I have taken to riding more slower. It seems to make you do that anyway with its lazy engine feel. So the odd blast feels impressive again. Handling is the best bike I can remember and I have had about 25 bikes!

Okay folks. Can someone summarise this thread as at first it seems that conductive paste to increase the heat transfer and so the temperature was a good idea and had beneficial results. Others have said that the weak mixture result causes poping on decal. Not sure where to go with this. I would like better fuel efficiency but not at the expense of poor running. I have a Breva with the plastic thing. I have a tube of silver oxide paste ready and waiting. I guess I can only try it. What are the conclusions so far? Many thanks NPS

Raz That's very interesting and useful to know. I think much depends on combustion chamber design as emry says. I've had alot of experiance playing around with crusing mixture setting on my Sporti with Cliff's MY16M. I found that on this engine anything leaner than about 14:1 caused a distinct roughness with no apparent fuel saving.

Can anyone tell me about the service code for a Breva 1100. That's the code input via the dash to cancel the service alert warning. 1. Is it different for each service? 2. Does anyone have them or it? Thanks