Yamaha outdrive replacement

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Ramble

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I have 2 Yamaha ME420STIs and am looking for a replacement outdrive. Does any know were I can find a complete drive unit (upper & lower units). I have found the part number for the lower unit, but cannot find the part number of the upper unit.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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welcome aboard.

you wont find much support in the US for Yamaha since they were sued for patent infringement.

your best bet for a replacement is to unbolt everything yamaha and bolt in either mercruiser or volvo-penta. or hope to find two drives that come from fresh water boats that were meticulously maintained and the hull was crushed by a tree and someone held onto the drives.
 

Bondo

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Ayuh,...... Welcome Aboard,...... As Scott says, Yamaha's were only imported for 2 years, so there little to find,.....

If anybody knows where to find what ya need, try Capt. Ken at Nelson Marine in Florida,.....
 

Ramble

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Thank you guys. If anyone has the part number of the upper unit it would be very helpful. My parts catalogue is missing assembly part number.
Is a switch to a different make drive feasible or complex?
 

Bondo

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Is a switch to a different make drive feasible or complex?

Ayuh,.... I guess it depends on just how Handy you are,.......

You remove Everything Yamaha, 'n replace it with Everything Merc or Volvo,.....

The most feasible way is to buy a rotten donor hull with the driveline you want, 'n swap Everything into yer hull,.....

The hole in the transom matches Mercs, 'n later model Volvos,.....
 

kpg7121

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Thank you guys. If anyone has the part number of the upper unit it would be very helpful. My parts catalogue is missing assembly part number.
Is a switch to a different make drive feasible or complex?

What good is the part # if what you need is nearly non existent?
 
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