1 K100 16V 1991 - no spark to plugs after some modifications Tue Jul 11, 2017 7:10 pm
mquadro
active member
HI all,
as from the introduction to the Forum, I'm Massimo from Italy, and I'm getting mad in modifying a 1991 K100 16V.
It's not my first Special, but this one is possessed by the Soul of Satana.
Before I've started any modifications I tried the bike, and the engine started suddenly.
So I started working. Unfortunately, since I'm from Naples but I work in Rome, I can work on the bike only in the weekends, so it took time.
After modifications, everything works well, except I have no spark at plugs.
DIAGNOSTIC STEPS
* sidestand bypassed with a short circuit in the connector,
* clutch switch bypassed with another short in the connector
* pump is working properly and turns well
* starter engine works well
* gear connector is connected, Neutral light is working properly
* Put a 4W lamp on both coils primary, with no lamps. So the fault seems to seat in Hall sensors or ECU.
* Diagnostic says 1133, second hall sensor. I bought a second hall assy, with same problem and same diagnostic.
* TPS diagnostic also failed, so I moved the sensor unless the diag was OK (Led on on closed throttle, off when opening).
MODIFICATIONS:
* removed the key key switch, and put a motogadget M-lock (linked the two gray wires together, and put the m-lock between green and red wires
* removed the left handlebar switch assy, connecting position light and low beam lamps together to make them always on
* removed the right handlebar switch assy, connecting together emergency switch cables to bypass switch
* modified the indicator lights relay, cutting the pin #7 track on printed circuit to disable fast flashing (I'm using Kellerman indicators)
* removed all the instruments, using a motogadget mini with motogadget motosign mini, and a BEP 3.0 Control Unit to get all the signals from the bike. Everythng works fine
As I told before, everything seems OK but the bike won't start. Any ideas?
Every help will be greatly appreciated.
Thanks in advance
P.s.: question: if I forget to connect the water sensor, the bike will start or issues in the water sensor will block the ignition?
as from the introduction to the Forum, I'm Massimo from Italy, and I'm getting mad in modifying a 1991 K100 16V.
It's not my first Special, but this one is possessed by the Soul of Satana.
Before I've started any modifications I tried the bike, and the engine started suddenly.
So I started working. Unfortunately, since I'm from Naples but I work in Rome, I can work on the bike only in the weekends, so it took time.
After modifications, everything works well, except I have no spark at plugs.
DIAGNOSTIC STEPS
* sidestand bypassed with a short circuit in the connector,
* clutch switch bypassed with another short in the connector
* pump is working properly and turns well
* starter engine works well
* gear connector is connected, Neutral light is working properly
* Put a 4W lamp on both coils primary, with no lamps. So the fault seems to seat in Hall sensors or ECU.
* Diagnostic says 1133, second hall sensor. I bought a second hall assy, with same problem and same diagnostic.
* TPS diagnostic also failed, so I moved the sensor unless the diag was OK (Led on on closed throttle, off when opening).
MODIFICATIONS:
* removed the key key switch, and put a motogadget M-lock (linked the two gray wires together, and put the m-lock between green and red wires
* removed the left handlebar switch assy, connecting position light and low beam lamps together to make them always on
* removed the right handlebar switch assy, connecting together emergency switch cables to bypass switch
* modified the indicator lights relay, cutting the pin #7 track on printed circuit to disable fast flashing (I'm using Kellerman indicators)
* removed all the instruments, using a motogadget mini with motogadget motosign mini, and a BEP 3.0 Control Unit to get all the signals from the bike. Everythng works fine
As I told before, everything seems OK but the bike won't start. Any ideas?
Every help will be greatly appreciated.
Thanks in advance
P.s.: question: if I forget to connect the water sensor, the bike will start or issues in the water sensor will block the ignition?