2007 Honda Foreman 500Fe no spark

[struthers 4]

Do I need to take the green wire off the coil?

[Melatv 797]

No those reading are good -- Now  check the spark side of the ign. coil -- it should read 6 - 9 K ohms  -- plug wire to ground

[struthers 4]

@Melatv from the spark where the B/Y wire was plug into, to the end of the coil wire im getting 5.706k ohms

[struthers 4]

@Melatv that's without the spark plug boot, with the boot on I get a reading of 11.49k ohms

[Melatv 797]

Leave the Bl/Y wire off the coil don/t use it - remove the spark plug wire from spark plug and test spark wire plug wire to ground

[struthers 4]

@Melatvokay i the B/Y wire is off the coil I have removed the spakr plug wire from the spark plug and from the boot and tested the spark to ground still no spark

[Melatv 797]

from the inside of the boot to ground - what is the ohm reading - make sure you are touching the wire inside the boot

Edited August 16 by Melatv

[struthers 4]

@Melatv with boot on to ground I still get that 11.49k ohms reading no matter how hard I push down or wiggle it

[Melatv 797]

Okay  -- unplug the ECM -- check all the pins for bent or broken ones -- also look for corrosion in the ECM boot.

Also check the ohms on the Bl/y wire on the ECM connector to the Bl/Y on the ign. coil -- should read zero

[struthers 4]

@Melatv okay the pins look to be in good condition, the ecm plug i dont notice any corrosion. B/Y from the ECM to the B/Y that goes to the coil reads about 0.2 ohms

[Melatv 797]

Been a long day -- will check some more -- tomorrow

[Melatv 797]

Hi @struthers make sure your battery is fully charged -- just because it reads 12 vdc with your meter doesn't mean its charged 

[struthers 4]

@Melatv I will look into some more come Sunday having family over at the moment, the battery I have has a digital indicator on it that shows the voltage and it wasn't showing low

[Melatv 797]

Hi -- A meter or digital indicator is only a reading doesn't tell you the battery is charged -- you need a load on the battery to test it. You can try this place a meter on the battery -- turn the high beams on the bike for 1 minute and turn lights off the voltage should climb back up to 12 vdc right away. These atv's need a good fully charged battery to start. 

[struthers 4]

I have a battery load tester I will put on it and I will try what your saying.

[struthers 4]

@Melatv the battery did pass your test and with my load tester it did pass as well but on the lower side

[struthers 4]

@Melatv

[Melatv 797]

@struthers charge the battery -- check the CKP sensor -- unplug the CKP sensor -- put your meter on the AC scale -- crank the motor -- your see a voltage on the Bu/Y & W wires 

                   Also check the ohms of the CKP -- should read 100 - 300 ohms

[struthers 4]

@Melatv charging battery, I do see voltage at blue and yellow and white wires at CKP, the ohms are about 248 ohms

[Melatv 797]

1 hour ago, struthers said:

@Melatv charging battery, I do see voltage at blue and yellow and white wires at CKP, the ohms are about 248 ohms

That is good 

[struthers 4]

@Melatv I am seriously considering that the wire harness is the only other issue it could be

[Melatv 797]

Hi @struthers have you still got those jumpers in to bypass the key switch --

[struthers 4]

@Melatv no but I can put them back in

[struthers 4]

@Melatv I've unpluged it to not run down the battery

[Melatv 797]

Hi Test the Key switch -- put meter on ohms scale -- with Key sw unplugged R to Bl should zero ohms  --- R/Bl to P should read zero ohms