Ok lets try and break it down from your opening post.

1. New Battery on it at the moment ?
2. Replaced Spark Plug, I assume you meant Plugs ?
3. Replaced Coil, I assume you meant Coils ?
4. Wire corrosion ! Explain please ?
5. Checked the Grey Wire, How exactly ?

Now some additional info please.

• How many Miles has the Bike covered ?
• What led up to the issue ?
• Is the OEM Ignition Switch still fitted ?
• Are all the parts above that got replaced NEW ?
• Have you checked all Electrical Connections for corrosion ?

So your not doing the Battery any favours whacking 6amps into it despite the short duration as this will over heat the plates.
Do you have say a 1A charger ? I know it takes longer to charge but that treats the Battery respectfully.

You say you can get 3 sparks then nothing, Is that because the Battery flattens or it stops firing ?

 

1.New battery
2.Spark plugs
3.Yes
4.I checked for wire corrosion…switch corrosion
5.Multimeter for gray wire
6k miles
-Bought from a guy not running said it was carbs… not true
-I don’t think it’s oem ignition it’s riveted together but I spliced in the resistor it may have needed and it didn’t change
-Didn’t replace anything but the battery and ic igniter everything else was resistance tested, for the pick up coil I couldn’t do the test that required the extra multimeter tool but resistance was in spec
-I’ve tried several fully trickle charged battery’s with volts in spec it’s not the battery
- I get 1 to 3 sparks while cranking and then it stops without any change to cranking speed

 

5.Multimeter for gray wire

What Voltage did you get ?

 

Not new ic igniter but that wasn’t the problem any I had the same result. I got the new to me ic igniter before I figured out it would spark a few times after being on fast charge/booster

 

Ok,
It might be worth getting a Peak Voltage Meter adaptor for your DMM as this will give you a greater test result.

Have you monitored the Battery voltage at Cranking to see what it drops to ?

 

Will check on peak voltage adapter. I don’t remember what it was on the newest battery but the old one was 11 I think. The crank speed doesn’t change with the new battery though, so I don’t think it’s dropping as much

 

I would try cleaning the ground wire terminal that bolts to the coils with a little sandpaper that's cheap. coil wires to spark plugs is cheap but if you just cut off about 3/8 of an inch off both ends you might get lucky

 

I cleaned the grounds before I posted, and the wires are good I checked continuity for each.

 

I had similar problem on my Gpx750, would spark once and then nothing. Checked everything and was jiggling around with the 10 pin connector into the igniter and it suddenly started sparking continuously. Turned out it was a loose wire in the connector.

 

Biggest issue I see with these bikes is bad grounds, I replaced all the grounds on the motorcycle with new wires and it fixed my no start issue. I pulled the entire loom out of my bike when I bought it wrecked and went over every wire and found the voltage reg/rec had a bad connector and shorted the ground wire melting it.

I would suggest removing your fairings, and harness. Go thru the wires and make sure you replace any wires that look pinches, damaged, etc. Its tedious but I trust all of my previously purchased wrecked motorcycles to drive across the country without a problem.