graball wrote:
Yep, modern ignition systems take some beating.
You wouldn’t have thought that if you were on the back of my motorbike coming back from Borth the other week Grabs. It’s an ongoing problem I have when it’s done prolonged high speeds; it’s starts to buck like a mad bronco ride. It may not be the ignition in itself but some sensor which is dodgy, but it amounts to the same thing. So under the heading “It’s new it must be better” well - it most certainly isn’t!
I rarely had a single misfire years ago with carbs, electronic ignition or plain ole fuel injection when that came in, but since software came into the equation of ‘all things modern’ and thanks to Euro 3/4 (5 next?) emission laws it’s crap and it’s damn dangerous sometimes!
I’ve mentioned this before about the Mazda 323f I used to own and how if I fluffed starting up from cold it was an absolute bugger to get started again. This is from the forum on my motorbike I subscribe to and what could be at fault. (The experts can only guess and “try this an that”). If an error code is present, the error code(s) will be displayed as follows. How do you like these apples: -
C00 No error
C11 Camshaft Position Sensor (CMPS) - 1000 Only
C12 Crankshaft Position Sensor (CKPS)
C13 Intake Air Pressure Sensor (IAPS)
C14 Throttle Position Sensor
C15 Engine Coolant Temp. Sensor (ECTS)
C17 Intake Air Pressure Sensor (IAPS) - 07 & Up 650 Only
C21 Intake Air Temp. Sensor (IATS)
C22 Atmospheric Pressure Sensor (APS) - 1000 Only
C23 Tip Over Sensor (TOS)
C24 Ignition Signal #1 (Front Coil)
C25 Ignition Signal #2 (Rear Coil)
C28 Secondary Throttle Valve Actuator (STVA)
C29 Secondary Throttle Position Sensor (STPS)
C31 Gear Position Sensor (GPS)
C32 Injector Signal #1 ( Front)
C33 Injector Signal #2 (Rear)
C40 ISC Valve - 07 & Up 650 Only
C41 Fuel Pump Control System (Fuel Pump Relay)
C42 Ignition Switch Signal (Anti-Theft)
C44 Heated Oxygen Sensor (HO2S)
C49 PAIR Control Solenoid Valve
It’s only got two cylinders too!
(I’m sure ed_m or Mole could trump that list with one from a car). This is just begging for something to go wrong IMO, something expensive an' all! (No cheap pair of points to replace or re-gap).
So on the way back home I had to keep the throttle open to prevent it stalling, but that’s not easy while trying to ride and concentrate on everything else. When it does this, it either wants to be throttle wide open, in which case you’re accelerating like the clappers, or off in which case it wants to stall. The danger is, being 1000cc twin, when the engine stalls the back wheel locks up as indeed it did going around a bend near home. Luckily, I reacted quickly enough to pull the clutch in and recover the skid otherwise I’d be posting a new topic “Gobbed it the other day, emailing from A&E”