REPLACING THE COIL ON MY STIHL HL75K, CAN SEE WHERE THE BLACK CABLE CONNECTS, BUT WHERE DOES THE BLUE ONE GO?

I can guide you on how to reconnect the ignition coil connector wires correctly on your 2007 Toyota Camry LE 2.4L. Each wire should be connected to the corresponding terminal on the ignition coil.
Here is a general guideline based on the standard wire color-coding for most vehicles:
1. Start by identifying the ignition coil and the connector wires that you need to reconnect.
2. Check the wires for any color-coding. Typically, the wires are color-coded as follows:
- Black or Black with a White stripe
- Yellow or Yellow with a Blue stripe
- Blue or Blue with a Yellow stripe
- Green or Green with a White stripe
Here is a potential wiring configuration (please verify with your vehicle manual or a professional):
- Black or Black with a White stripe wire connects to the negative terminal (-) on the ignition coil.
- Yellow or Yellow with a Blue stripe wire connects to the positive terminal (+) on the ignition coil.
- Blue or Blue with a Yellow stripe wire connects to another terminal on the ignition coil.
- Green or Green with a White stripe wire connects to a different terminal on the ignition coil.

If your wires have a different color scheme, consult a repair manual for your specific vehicle or reach out to a professional for assistance. When reconnecting the wires, ensure they are securely attached to the respective terminals to prevent any loose connections or electrical issues.

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The long switch spring touches the black wire when in the off position. Follow the spring towards the tank. It has a tab (spade) for the yellow wire female spade connector.

Can't get attachments to work... try following link for a pic of the switch.

https://forestryforum.com/board/index.php?topic=68212.0

One wire is ignition module kill (primary of a magneto) and the other is ignition module frame (engine block).

The two wires run separate to the kill switch which is a momentary single pole.

My bet is the points and /or condensor are shot.

Do you have bent blades.? Try removing the 'driveshaft' and adding a coating of grease, the shafts can become dry within a plastic liner and start to vibrate

you should of had a terminal end that sits on one of the mounting bolts...

Project is not clear.
Are you replacing the timer with a switch?
I have complete files on timers, so if you are replacing the old timer with a new timer, then add a comment and say which timer you are installing.
http://waterheatertimer.org/ST01C-program.html

You have 3 cables. Assuming 120Volts.
Each cable has 1 black and 1 white and 1 ground.
White wires are twisted together and pushed to back of box.
Ground wires are twisted together and pushed to back of box.
Black wires are next:

(A) Cable A:
One of the three cables will have a black wire that connects to both the switch and to the timer.
So look for the black wire that connects to both switch and to timer.
This is the hot wire from breaker box. Connect this black wire to both switches including new switch.

(B) Cable B: One cable goes to garage lights. Black wire going to garage lights connects to on-off switch.
So the garage light switch has 2 black wires: 1 black wire from cable A, and 1 black wire from cable B going to light.

(C) Cable C: One cable goes to outdoor lights. Black wire going to outdoor lights connects to new on-off switch.
So the outdoor light switch has 2 black wires: 1 black wire from cable A, and 1 black wire from cable B going to light.

First thing to consider is size of Load.
Leviton countdown-timer Load rating is 1800 Watt, 120Volt.
Look inside Jacuzzi at rating plate on motor.
Rating plate on motor should give Volts, Watts and Amps.
Formula Volts x Amps = Watts.
Sometimes motor shows VA which is Watts
Is Jacuzzi on 240Volt breaker or 120V breaker?
Leviton countdown timer is not for 240V load.

A) If 120Volt electric Load checks out, here's how to wire timer if 1 cable enter box.
Timer-black-wire connects to jacuzzi-black
Timer-white-wire connects to ground.
Timer-green connects to ground.
Timer-red connects to jacuzzi-blue.

B) Here's how to wire timer if 2 cables enter box.
120Volt cable coming from breaker box has black, white and bare copper wire.
Timer-black-wire connects to black-wire-from-breaker
Timer-white-wire connects to white-wire-from-breaker-box.
Timer-green and jacuzzi-ground connect to ground

Timer-red-wire connects to jacuzzi-black-wire.

Jacuzzi-blue-wire connects to white.
I am puzzled why this wire is blue if circuit is 120Volt.

If I understand correctly, you are replacing a switch with the EJ500 timer.
You mention a 'plug'

The EJ500 has 3 wires: Black Red Blue.
If you are replacing a single-pole switch:
The switch has 2 wires, one of these wires is the Hot-from-breaker and the other wire goes to Load:
Timer-black connects to Hot-from-breaker.
Timer-blue connects to wire-going-to-Load.
Timer-red wire is capped off. Red is not used for single pole switch.
If you connect wires and your lights blink, then you put the red wire where the blues wire should go.
If you connect wires and lights do not operate, try reversing the blue and black wires.

I posted images of EJ500 wiring (the Intermatic EJ500 and ST01C have identical wiring
http://waterheatertimer.org/ST01C-program.html#ST01C

If you are replacing a 3-way switch, the wiring is more complicated.
The EJ500 can not replace a 3-way switch wire-for-wire.
Diagrams on link above show wiring for 3-way.
Add a comment if you need more help.