Help Defeat lockouts on FZR250 engine installed in Kart (Pins 5 and 6)

I have an FZR250 engine that came to me minus alternator, trigger (and alternator cover) no loom, no ECU.
I will be installing the motor in a dirt kart
I will purchase one of the cheap FZR250 ECU s and a pickup trigger on ebay. It would be nice if I could find a used alternator cover/trigger pickup to buy, but it will be no trouble to make a trigger-mount and get it timed right if I have to
I have the pinout code for the ECU , I already found that on this website (thanks)
I will run the engine with total-loss battery power supply (no alternator required in this application, just charge battery between race meetings.)

BUT
I need to know what steps to take to deal with pins 5 and 6 Which I can only identify as "SS' and "FP" ( bear in mind I have no bike or wiring loom here, this is a standalone installation in a racing Kart)
Are these pins "sideStand" and ???? lockouts that will prevent the ECU from working?
If so, what connections do I need to make to defeat the lockouts and allow the ECU to function? Do I just run "SS" and "FP" to ground? Or do they need a resistor?

 

sounds possible

 

maybe theres a kill switch involved?

 

Those diagrams definitely helped. FP goes to the fuel pump relay ( probably grounds the relay, I will test), and I think SS is Engine Stop Switch, also to ground. The ECU will probably run without connecting either of them, although i will definitely use the FP output as it will turn the pump off when the engine stalls etc (as in crashing).Thanks mate!!

 

Will do. I have a kart ready to take the FZR. I will need to weld an outrigger to the frame to take the wide motor. Will also need to move the seat to the left.This is just a fun project ,it will never be a winner at our track (too heavy), but it will for sure win the prize for best sounding kart.The fast kart is the one in my avatar pic, thats powered by a KX250F MX motor.I build the chromemoly frames as well.
I am amazed at the cheap Chinese parts for these engines, ECU, pistons, rods, bearings, valves, etcetcetc, all so cheap!. Not that I need much I dont think, the oil is clean and it turns over smoothly, so I might give it a go without stripping down.. It came without carbs so will get a set of 4 Chinese Mikuni or Keihin flatslides, ..they even make the oval-port inlet manifold rubbers! for about 7 bucks !! I enjoy making tuned-length exhaust manifolds so looking forward to making this teeny weeny little set.. When fitting a motorcycle engine to a kart I make the mounts out of 2 x 12mm thick alloy side plates bolted to a cast slider-block and clamps. I have a hobby foundry where I cast the mounts from wooden patterns. You might have figured out by now I am retired !!

 

Yep. When I cast the FZR mounts. I dont use gas. just barbeque charcoal and a hot-air gun. Each casting only costs about 5 bucks.. The sand and clay powder can cost a bit if not available locally, but are reusable

 

looks like tach signal taken from coil#1 wire from ecu

 

thats the sound i want to hear at the kart track

 

do they run 4 seperate ignition coils or 2 twin-post coils?

 

thats perfect info thanks mate .......using wasted spark on my V12 quadturbo jag using Ford 6 post coils which are 3 twin-posts moulded together one for each bank

 

I am making progress getting the parts to make the FZR250 run, I now have an ECU, coils,inlet manifolds. Just looking at the ignition stator pickups (trigger) available on AliExpress. They do not list a specific pickup for the FZR, but they offer generic yamaha-style pickups in 2 different resistance , 200 ohm or 500 ohm. Does anyone know which of these would work. I think the pickup mounts onto the flywheel cover (which I do not have), but maybe someone could test the resistance of their trigger (pickup) for me...or have the specs?