Trim Motor Seized - Yamaha F50A

willfinch36 · 12 March 2018, 10:54

Looks like the trim motor on my Yamaha F50 is seized.

A new OEM one is £337 EX VAT
Non OEM half that?
Get it refurbed?

P/N:62Y-43880-02-00

Any thoughts.

Thanks,

Will

spartacus · 12 March 2018, 12:23

Have you opened it up? Trim motors are relatively simple pieces of kit. I rebuilt my Tohatsu one with carbon brushes for a motorcycle and springs from Hornby train set.

Have you ruled out the solenoids just in case?

Post some pictures so we can see.

willfinch36 · 12 March 2018, 12:25

Yes, thankfully I had my electrician friend with me so he opened it up and inspected.

Will take some pictures and report back!

matt h · 12 March 2018, 12:40

there are plenty on non original versions around, think I paid around £100 for the last one

willfinch36 · 12 March 2018, 12:42

Quote:

Originally Posted by matt h

there are plenty on non original versions around, think I paid around £100 for the last one

Thanks - And it lasted more than 3 weeks?! Some not so good reviews on a specific amazon copy!

spartacus · 12 March 2018, 14:33

Definitely look to refurbish first. Suspect it's just worn carbon brushes. Also check the springs as their job is critical in keeping sufficient pressure on the brushes. Any corrosion on the springs, then look to replace too. If the 'o' ring gasket on the motor body is broken or pinched, then you'll need to replace that or you'll get water ingress.

jeffstevens763@g · 12 March 2018, 18:56

Quote:

Originally Posted by spartacus

Have you opened it up? Trim motors are relatively simple pieces of kit. I rebuilt my Tohatsu one with carbon brushes for a motorcycle and springs from Hornby train set.

Have you ruled out the solenoids just in case?

Post some pictures so we can see.

Did an evinrude 50 with washing machine brushes

spartacus · 12 March 2018, 19:01

Quote:

Originally Posted by jeffstevens763@g

Did an evinrude 50 with washing machine brushes

We should start a thread about fixing things with non OEM parts!

jeffstevens763@g · 12 March 2018, 19:22

Quote:

Originally Posted by spartacus

We should start a thread about fixing things with non OEM parts!

Great idea when you're low on dosh tips such as this really help

breezeblock · 12 March 2018, 21:05

Quote:

Originally Posted by spartacus

We should start a thread about fixing things with non OEM parts!

I once strapped my boat on the trailer over the tubes with non genuine ratchet straps does that count

Navajoturquoise · 13 March 2018, 00:13

The trim motor on my Etec 115 would function sometimes and sometimes wouldn't get the outboard motor up or down. I found two OEM's at $378+TX and another non OEM at $100 USD, no tax and no shipping charges. Got it in two days. Works perfectly. The company that manufactures the motor specializes in making motors for the boating industry as well as for other automotive concerns. I would think that if the seller is trustworthy then the product should be good. In my case it worked perfectly.

willfinch36 · 14 March 2018, 11:11

Removed it last night:

spartacus · 14 March 2018, 12:08

Definitely needs a new seal between the pump. What do you reckon, carbon brushes?

matt h · 15 March 2018, 07:33

If heavily corroded you may find the armature ( central rotor) rubs against the magnets on that model. The corroded outer casing pushes the magnets up and breaks them.
It does look like the left magnet has been pushed up as I think I can see a gap.
I may have a new non genuin motor if you want, it was recommended by BHG Marine as a good oem replacement.

willfinch36 · 15 March 2018, 10:56

Quote:

Originally Posted by matt h

If heavily corroded you may find the armature ( central rotor) rubs against the magnets on that model. The corroded outer casing pushes the magnets up and breaks them.
It does look like the left magnet has been pushed up as I think I can see a gap.
I may have a new non genuin motor if you want, it was recommended by BHG Marine as a good oem replacement.

Have sent you a PM.

yes the magnets move around and the central rotor will barely move at all!

matt h · 15 March 2018, 18:25

Hi willfinch

yep pretty common, you cannot repair it and will need new motor, if you send me a picture then i can see if i have the new one and it fits, its either a long shaft leccy motor or short.

Cheers Matt

willfinch36 · 16 March 2018, 10:46

Quote:

Originally Posted by matt h

Hi willfinch

yep pretty common, you cannot repair it and will need new motor, if you send me a picture then i can see if i have the new one and it fits, its either a long shaft leccy motor or short.

Cheers Matt

Hi Matt,

Mine appears to have a longer shaft than the one in your picture!