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11 June 2010, 10:27
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#1
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Member
Country: UK - England
Town: Salisbury
Boat name: TORA
Make: Tornado
Length: 4m +
Engine: Yamaha 60hp
Join Date: Jan 2009
Posts: 88
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Yamaha 60hp
Hi
I need to remove the lower unit on my Yamaha 60hp 3 Cylinder 2 stroke.
I cannot see where to release the gear selector rod, does anyone know where
it is located?
Some pictures attached to help with identification.
Thanks
Paul
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11 June 2010, 15:10
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#2
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 1,395
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Quote:
Originally Posted by TUFTY
Hi
I need to remove the lower unit on my Yamaha 60hp 3 Cylinder 2 stroke.
I cannot see where to release the gear selector rod, does anyone know where
it is located?
Some pictures attached to help with identification.
Thanks
Paul
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To drop the leg on a Yammie, ensure it's in neutral, then undo the four bolts under the anti-ventilation plate. Also undo the sacrificial zinc anode. You'll find the fifth bolt underneath - which also has to be released. If it refuses to budge after all bolts are removed - use a rubber mallet and lightly tap around the top of the plate.
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11 June 2010, 15:53
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#3
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Member
Country: UK - England
Town: southampton
Length: 4m +
Join Date: Jul 2009
Posts: 191
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if you look at where the gear shift cable is attached to the engine
you will see there is a rod that goes across the engine between the bottom carb and the engine tray.
if you go around to the other side of the engine from picture 2 and look under the bottom carb
you will see the gear shift rod coming up out of the leg attached with a pin.
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11 June 2010, 17:29
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#4
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Member
Country: UK - England
Town: Salisbury
Boat name: TORA
Make: Tornado
Length: 4m +
Engine: Yamaha 60hp
Join Date: Jan 2009
Posts: 88
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Thanks
OK can see the rod and pin so ready to drop!!!
All the bolts have come out ok and the unit has split ok.
Cheers
Paul
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11 June 2010, 17:32
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#5
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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Quote:
Originally Posted by Andy B
if you look at where the gear shift cable is attached to the engine
you will see there is a rod that goes across the engine between the bottom carb and the engine tray.
if you go around to the other side of the engine from picture 2 and look under the bottom carb
you will see the gear shift rod coming up out of the leg attached with a pin.
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That's Suzuki. Yams have a splined gear shaft that splits at the lower unit. Once all 5 bolts are out, it should drop off. Don't try and remove the shift shaft under the carb at the top.
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11 June 2010, 17:56
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#6
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Member
Country: UK - England
Town: Salisbury
Boat name: TORA
Make: Tornado
Length: 4m +
Engine: Yamaha 60hp
Join Date: Jan 2009
Posts: 88
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Thanks
Cheers Nos
Will do in the morning.
Can anyone suggest a supplier who can supply a complete
lower unit service kit?
I plan to change all the shaft seals and impellor.
Thanks
Paul
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11 June 2010, 18:04
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#7
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Member
Country: UK - Wales
Town: monmouthshire
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 958
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If the lower unit wont drop off dont hit the anti airation plate!! it will crack off really easily!
if it does need a tap, hold a piece of 2x2 soft wood along the length of it to spread the energy and tap that.
__________________
I am usually not as green as i am cabbage looking.
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11 June 2010, 18:07
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#8
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Member
Country: UK - England
Town: southampton
Length: 4m +
Join Date: Jul 2009
Posts: 191
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Quote:
Originally Posted by Nos4r2
That's Suzuki. Yams have a splined gear shaft that splits at the lower unit. Once all 5 bolts are out, it should drop off. Don't try and remove the shift shaft under the carb at the top.
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yep your right! 
sorry brain freeze
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11 June 2010, 18:11
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#9
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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Quote:
Originally Posted by doggypaddle
If the lower unit wont drop off dont hit the anti airation plate!! it will crack off really easily!
if it does need a tap, hold a piece of 2x2 soft wood along the length of it to spread the energy and tap that.
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Many 'small' (ie not THAT small) taps are better than one big bang too-the vibration is far more likely to free it than a big shock.
__________________
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Please click HERE and HERE and support our Trade Members.
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12 June 2010, 20:44
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#10
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Member
Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 1,395
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A good place to hit it is on the angle edge on the anti-cavitation plate or the gear box (but only with a rubber mallet). Good tip is to 'lube-up' the splined propshaft with Duckham's marine grease on removal. If you renew the impeller ever year or ever two years - then there shouldn't be a problem.
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