Hey, I’m asking for some help to diagnose this issue. It’s a 2012 696 Monster, it will start to misfire on both cylinders or cut out totally, it’s ridden regularly, this can happen randomly every week, 2 weeks or 2 months. I’m sure it’s a fuelling issue as checked for a spark immediately after it cut out and was sparking. Leave the bike for 5 minutes ant it’ll start and run perfectly again. It usually cuts out after being stuck in slow traffic for 10 minutes or so, out the traffic and open her up and that’s the time it’s likely to cut out. It can be hot or cold weather conditions. I have had the following error codes. PO482 exhaust valve end position adjustment PO171 vertical cylinder lambda control signal too high. This model doesn’t have the valve in the exhaust system, I tried replacing the lambda sensor. I’ve tested the little inlet air temp sensor, that seems good. I’ve replaced the fuel pump. I’ve since had error codes for vertical and horizontal lambda sensors. It’s a well looked after bike and everything looks good. Any help getting to the root of this issue will be greatly received.
Hey thanks for the reply. yes I had seen PO482 can also refer to a cooling fan. The bike is air cooled and has no fan. these codes probably are pointing to something it’s just beyond me to make heads or tails of them
Could be a phantom code. Has the bike repeatedly failed to start. Does P0482 come back if the code is cleared?
Yes code has come back. the bike starts and runs perfectly except for when it’s issue happens and stops, literally 5 minutes later it’s perfect again. I’ve puzzled over it and checked everything I can think of for the last 9 months!
Might be a curve ball, but the Monsters of that era can suffer with loose battery terminals that cause all sorts of random issues with errors, starting, screen shutdown...... worth a check. The battery sits across the frame and isn't that secure. Accelerating and braking cause the battery to rock and this can loosen the terminal screws on the battery.
