Installing powerhead Mariner/Yamaha 40 hp 2-stroke. How much to re-assemble first?

[SAABologist]

Hi, I am installing the powerhead on 1987 Mariner (Yamaha) 450 hp 2 cylinder 2-stroke. Here are my questions for the helpful pros who've done this so many times. Thanks in advance.

How much should I attach to the powerhead before placing it onto the platform of the leg of the motor? Is it best to bolt it in bare-bones or with the components already in place?
-Is it advised to attach stator, flywheel first?
-Should I attach the CDI unit and other components?
- Starter?
- Timing linkage?
- Carburetors and linkage?

(Most of the above was very easy to remove before taking the powerhead off, but I am wondering if anything is to be gained by putting it back together before lowering it onto the platform.)

GASKET-
I have read that some folks are fine using hi-temp RTV, others feel a gasket is necessary.
I was planning on using only a bead of black hi-temp RTV.

I am really just looking for pointers on making this simple job easier and better, thanks.

 

[RaisedByWolves]

Gasket for sure.

As far as how much to bolt on before installation, that would depend on what method I had to lift it.

Hard points and an engine hoist or other mechanical means? As much as I could possibly mount to it.

Putting it on by hand id want it as stripped as possible for a variety of reason’s.

 

[SAABologist]

If someone has a diagram or can check their old mariner 40, I sure would appreciate it.

Where do the leads from the choke solenoid go???!!?

I have everything back together with no trouble at all. But for the life of me I can't see where the leads from the choke solenoid go. This sits above the top carburetor and has two leads. I just can't see any loose wires to connect them to!

I probably am just not seeing it.

I did check some sites for the wiring diagram but could not find it.

Thanks,

 

[SAABologist]

RESOLVED
I figured it all out and the motor is running well again. I might find a timing light to check the timing more precisely and make some minor adjustments to the throttle linkage.
Thanks for your help,