Green wire from engine- where does it go?

[arick793]

I just bought a replacement motor for my spree, and the motor has a green wire coming from it, and there isn't any wire on my bike for it to connect to. It's wrapped up with a blue wire, and I have a match for the blue wire. On my old motor, there is only a blue wire, no green. I can't get it to start because it isn't getting any spark, I think that may be related to this. It came off of a running bike. Thanks!

[Petrock's 1984 Spree]

It comes from the magnet that is right next to the stator.

That's why your not getting spark, it's the ground for the magnet

[fightingplankton]

my girlfriend had to install a different year motor on her spree and it looked like everything lined up except the starter motor connections. some of them had an extra wire. mouse can probably tell u which years.
but we just grounded it to frame...i think...been a while.
all the same. green=ground.

[arick793]

Son of a *! I grounded out the green wire and she fired right up and runs GREAT. I put some extra oil in the gas to make sure the oil injection was working and it smoked me out of the garage after a minute. It's making this ticking noise in the engine now, what does it sound like when the bearings are going bad?

[fightingplankton]

if you can get a video of the sound and post a link.
if not. err on the side of caution and pull the head and inspect everything.

[Bear45-70]

It comes from the magnet that is right next to the stator.

That's why your not getting spark, it's the ground for the magnet

Magnets work just fine with OUT a ground. The ground is for the stator.

[Petrock's 1984 Spree]

Ha okay bear

All I know is it came from there on my spree engine. I remember it cause the elite stator is only a single blue wire

[Bear45-70]

Ha okay bear

All I know is it came from there on my spree engine. I remember it cause the elite stator is only a single blue wire

On Honda scooters, a green wire is always ground, but the magnets are part of the flywheel and there is no ground to the flywheel because it rotates. The ground wire (the green wire) is from the stator which the flywheel spins around.

[mousewheels]

Hi,
You've got the fix. The wire actually comes from a separate coil from the stator. This little guy is the spark trigger input to the CDI. With a 2 wire - ungrounded configuration, result is no spark. The stator itself does not have a green ground wire, it is grounded on all models via a mounting bolt.

-- Model year info for reference --
Spark pulse generator 2 wire 1984/86 <> 1 wire 1987. Two wire may be used in 1987 by connection of green wire to ground.

1987 One wire vs 1984-86 Two wire igntion spark pulse (trigger) coil comparison

Spree_One_Wire_vs_Two_Wire_Spark_Pickup.JPG (18.32 KiB) Viewed 6605 times

Schematic showing the electrical wiring of the extra green wire ground on '84-86 Sprees

Spree_Pulse_Coil_2_Wire.jpg (39.46 KiB) Viewed 6605 times

[Chaostoy]

-- Model year info for reference --
Spark pulse generator 2 wire 1984/86 <> 1 wire 1987. Two wire may be used in 1987 by connection of green wire to ground.

Hi,
I was curious if there were anything I would need to do to place a single wire pulse type engine to an older frame that has the dual wire pulse setup? Should I place an extra wire to a ground on frame to connect to the green ground in the wiring harness? In other words, I have an '87 engine and want to use it on an '85 frame, but the pulser is now missing a wire. What to do?

[mousewheels]

Good choice on the swap, the newer Spree engines/exhaust are a little quicker.

Just hook the Blue/Yellow stripe wire on the '87 engine up, and ignore the Green wire on the Spree harness.

[Chaostoy]

Good choice on the swap, the newer Spree engines/exhaust are a little quicker.

Just hook the Blue/Yellow stripe wire on the '87 engine up, and ignore the Green wire on the Spree harness.

Thanks!

[mousewheels]

Glad to help. Looking back at the wiring post, a schematic of the '87 trigger coil would have been helpful. Will fix that next time.

Have fun, and post back about your'87 swap