[Midtec]

Hi guys, I need your help. I have a 97 rrv engine in a track car, don't hate me 🙂. Couldn't resist the great engineering in bike engines. It has proved to be bomb proof over the years, only needing a new clutch. The car was running for many years and then put up on bricks 7 years ago while I was living elsewhere. What with all that is going on at the moment I decided to rebuild her. I seem to have an electrical problem. No alarms, pre pink wire and all safety devices, clutch, stand etc bypassed. I am getting no spark.
I have tested and replaced coil packs and leads. I have 12v to both coils and have put a bulb between the pulse wire coming from the ecu and the positive on the battery. The bulb lights up as you would expect so there is a negative pulse coming from ecu to coil but still no spark. Help, what am I missing? Thanks in advance.

 

[MrPickwick]

Would check you Kill switch is healthy ,and your pulse generator

 

[Midtec]

Thanks for the quick reply.

If the pulse generator is faulty would the ecu still send a signal to the coil? Does the type of signal, voltage etc. That the ecu receives from the pulse generat change the characteristics of the negative signal it sends out and therefore not fire the coils?

 

[Midtec]

When I say "it sends" I mean the ecu.

 

[MrPickwick]

Have you done a resistance check at the IPG connector, although a Pva should be used for voltage the Ohms check should give you a sense of the IPG, does it have a kill switch ? ,and are all earths good

 

[Midtec]

The resistance at the ipg is within spec, however when cranking the bike I got a voltage reading of about. 0.2v. However that was with a standard multimeter set at 2v but with no peak voltage facility. I have checked all the earth's and they are good. I am assuming the kill switch has been bypassed, unfortunately I paid someone else to do the bike conversion. What happens when the kill switch is on? Does it stop power to ecu? Thanks for all your help.

 

[MrPickwick]

Yes matey , bike wont run without switch in run position or bypassed , have a look around the start switch for a Black and a Black/White wire through a switch or joined together (bypassed). Yes awkward to do a proper check of the IPG without the PVA , just holds the accumulated voltage better

 

[Midtec]

I will take a look to see how they bypassed the kill switch. What I was trying to understand is what circuits does the kill switch isolate, I appreciate the bike does not start ,however to troubleshoot the bypass I need to understand how the kill switch stops the bike starting e.g. Does it kill power to the Ecu, starter motor etc. This would help me troubleshoot if the kill switch bypass is part of the problem.

Thanks.

 

[MrPickwick]

This will help you along

 

[Midtec]

Thanks

 

[Midtec]

Hi guys, still struggling with this. Checked all the wiring and it looks like all the clutch, kill and sidestands have been bypassed. I replaced the pulse generator because although the ohms was in spec the voltage reading was around 0.13v, however I have replaced with a used pulse generator and that is also reading less than 0.2v. Is it possible that the rotor is at fault or is my replacement also faulty? Could it be the speed the engine is cranking at. To my ear it sounds fine.

I have also replaced the ecu just in case.

Thanks for any help.

 

[MrPickwick]

Wouldn't worry too much about the Pulse Generator, hard to get a reading without the PVA, but as you have installed another ,would be hard luck to get 2 Duff ones,have you got the fuse box set up with all fuses working

 

[IanDoohan]

Do you have pics of this beast and related wiring?