Nissan 40 LS to SS conversion question and purchase advice request

[TNWillie]

I found a 40 Hp long shaft for sale that the owner states requires an ignition module as it doesn't have any spark. I need a short shaft motor for my boat and don't want to add a jackplate. According to parts prices I found online, the necessary short shaft parts will be around $350. However, I don't know how readily available they are.
My question is: Is a bad ignition module the mostly likely cause of no spark and are special tools needed to access it? Any other advice and/or opinions would be most appreciated.

 

[pvanv]

First, you need the precise model (not year) to know which motor you have. Parts for different models may not interchange.

Then, must diagnose the ignition. Guessing that you need a new CD could be an expensive mistake.

It is seldom cost-effective to change shaft lengths; a better deal is to sell or swap a wrong-length motor for the correct length.

 

[Sea Rider]

Could add a simple 5" transom engine mount as opposed to a jack plate and use L shaft OB. The drive shaft alone is around $ 260 and need lots of more parts for the S conversion. Will blow your $ 350 estimated money real fast.

Not having spark is a 3 electrical component failure, will need to diagnose properly which one is the real culprit not wild guessing though as could turn out into a costly one.

Happy Boating

 

[TNWillie]

Thank you both very much! Although your info was not what I was hoping to read, it confirmed what I had thought and was exactly what I needed.

 

[Sea Rider]

Don't have issues installing L shaft Tohatsu OB's on short or medium height transoms, can solve the problem by installing a proper height engine mount as in pic .



Or adding a second upper water deflector to lower leg. Much cheaper than investing on Short shaft parts.
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Happy Boating

 

[TOHATSU GURU]

The parts alone to convert it are more than you think they are.

new motor leg, drive shaft, shift rod, water tube and assorted gaskets.