1997 Bandit 1200 electrical problems

[Central_Coast]

6 hours ago, fatblokeonbandit said:

so has this bike run with that specifice igntion siwtch ever??????

Yes the bike ran about a year ago with the original ignition switch, I was dialing in the carbs when it just wouldn't start again, found it had no spark and Ive been looking for the problem ever since. I do remember the spark being very weak before working on the carbs. 

6 hours ago, fatblokeonbandit said:

1st thing id check is the secondary earth plug for the loom, small spade connector just after main earth connection near the batery, if thats unplugged or badly corroded it wont fire...

Ive checked and rechecked this as well as the continuity of all the associated Black/white neutral lines it connects to.

6 hours ago, fatblokeonbandit said:

2nd is do a volt drop check on the battery, if the battery voltage goes much below 10/11 volts when cranking then the cdi wont spark anyway, had this a couople of times with b12's with batteries that wont hold a full charge, they look fine static at 13 or more volts, but when truning the motor over it drops right down..

Im using a car battery while testing, plenty of cranking power

 

I'm going to take apart the ignition switch and look for and test the resistor today. 

[fatblokeonbandit]

if it did work then it must have the resistor fitteed???

[Central_Coast]

Ugh no luck, found the resistor it reads 99.2 ohms, also tested from the resistor end to the black/white end at the connector on the wireloom also 99 ohms. At this point, I'm going to put it all back together and try another CDI, I don't know what else it could be at this point.

Can I mail anyone my old CDI's to check on there bike?  

[fatblokeonbandit]

get hold of Dave  rdubandit hes in North Carolina and has many bandits and knows stuff as hes clever...

 

even though you are using a car battery id still stick a meter on it and push the tit, just to see what the voltage drop is, only take 10 seconds

[Upshotknothole]

You can try https://www.rmcmoto.com/ in San Jose. I know him from when I used to live down there and he likes the old oil cooled stuff.

[MrKris]

Have you tried another loom had the same many years back and it was the loom section by the headstock fine reading when ignition was OFF then once under load of ignition ON a wire broke down by headstock

Bandit ran fine home after buying it then next day wouldn't start done everything I could found out loom 

Might be worth a try? 

Edited November 3, 2023 by MrKris

[Central_Coast]

Finally got a spark, but it's acting weird, sometimes I get shocked and the spark is weak and sometimes it jumps from the threads to the electrode. 

Does anyone know the gap measurement for the pulse generator / crank position sensor? Thanks