Yamaha - Temperature Warning Sign problem

[caldaland]

now that's what i call help!

[benri]

Cheers Granitu - Greatly appreciated! I'll keep you posted! On the schematics however, there appears to be a thermostat cover (No. 36 - Page 4) but no thermostat! Strange :O

[Granitu]

those outboards are best operated without a thermostat.

this isn someghing many miss on these outboards. when you will.open, you will notice how small the passages are. the outboard easily heats up and does not need a thermostat.in the med sea.

this outboard mechanically is one of the best yamaha ever build, they very rarely fail. however, they have this salt sediment issue thaT can be overcome. given their endurance and durability many still use these outboards.

they can also be fuelled with paraffin

[Moonwalker]

So how is best to threat an outboard after a day fishing?
I use Salt Off  to flush it - this can be replaced with white vinegar right?

Then I use CRC666 and spray on the engine. Someone suggested Silicone spray instead of CRC666 and someone else recommended Wurth Multi.
So whats the best to use?

And for the outside I use soap and water. Now someone recommended wax polish. Is this any good for salt not to stick after a day in the sun?

[benri]

In all honesty I flushed the outboard with Salt Away the last time it worked. Following that the above happened! I am not blaming the salt away but..... well, I just don't know!

[Granitu]

So how is best to threat an outboard after a day fishing?
I use Salt Off  to flush it - this can be replaced with white vinegar right?

Then I use CRC666 and spray on the engine. Someone suggested Silicone spray instead of CRC666 and someone else recommended Wurth Multi.
So whats the best to use?

And for the outside I use soap and water. Now someone recommended wax polish. Is this any good for salt not to stick after a day in the sun?

for outside use vinegar

lets start little by little. vinegar is by far a cheaper and much better alternative to salt away. mother nature cteated an opposite to salt, a nearly exact opposite. salt away is made out oc somw citric acid anx colorant, so why not using the source.

silicone spray us bettee than crc666 but if you like there is even a more better alternative, wax spray- spray tax xema. basically it is bees wax

[baghira]

interesting conversation...
well done granitu..

[shanook]

In my days we used to wipe the outboard with a cloth soaked in cooking oil. It never had barnacles and always looked new. When on the hard we washed with fairy liquid and after completely dry again an oil wipe before launching.
Bees wax is good but Caruana marine has a very good wax. I use it on my rudder, props and transducer face. Lasts all season on the transducer keeps the face clean.

[Moonwalker]

@granitu - Thanks m8. So about the wax-spray, should this be sprayed on the whole engine or just exposed metal? And should it be done every time or once a while, since it should stay there I suppose?

@shanook  - I have tried the cooking oil thing but I still had dried salt sticked to the housing after a day fishing. Ofcourse if goes off with some soap and water but maybe there is some treatment that water droplets just dont stick at all.

[Granitu]

@granitu - Thanks m8. So about the wax-spray, should this be sprayed on the whole engine or just exposed metal? And should it be done every time or once a while, since it should stay there I suppose?

@shanook  - I have tried the cooking oil thing but I still had dried salt sticked to the housing after a day fishing. Ofcourse if goes off with some soap and water but maybe there is some treatment that water droplets just dont stick at all.

Wax spray is very tacky and you can spray the whole engine with it. For the exterior i would suggest not to as it is tacky but if this is not an issue you can proceed to do so. Just rub it after application exteriollay. for the interior spray as much as you want.

I guarantee you that not a single spot of rust will appear as i do this myself. When you muight need service or repair, it will be a little messy but you will not find rust. For rust to form, it needs air and by wax you have eliminated this. Ultimately it is a non corrosive element.

@ shanook - interesting re caruana marine wax - I will ask him out and see what is all about.

[Moonwalker]

One last question about wax - does it do any damage to plastic or rubber parts as oil does?

[Granitu]

One last question about wax - does it do any damage to plastic or rubber parts as oil does?

no. thats the beauty of wax over oil

[skip]

Wax spray, like Waxoil/Dinitrol of the car?

[Granitu]

Wax spray, like Waxoil/Dinitrol of the car?

Yes, car dinitrol is a type of wax oil. It can be used i guess as it is widely used on cars and known to be effective. Cost may be higher however I would check that it is not petroleum based (environmental issues).

Also, Dinitrol if it needs to be removed, can be quite difficult to remove.

Good thought skip never thought of trying it out but worth more than a try. For sure it is of no harm on metals and plastics

[benri]

Just an update - I received the gaskets, cleaned all water passages with vinegar as suggested by Granitu, reassembled and all is working like clockwork The flow of water was never so strong! Thanks for all your help Granitu. The main blockage appeared to be at the outlet of the pipe intake - where the shaft meets the engine compartment - It was all clogged with salt.