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Hi Guys

The 20hp 2cyl yam 2 stroke can have modifications to make it a 25hp.
The 40hp - 50hp 3cyl 2 stroke, same concept
Wondering if anything "simple" can be done to a four stroke Yam 60hp...

Apologies Sam,
There was something mentioned a post or two back about mixing alky with gasoline..
and the BTU's of Alcohol came to mind, I probably should have written "ethanol" instead of throwing...

Hi Guys

Just wondering if anyone can help me ID this cylinder head?

It has no generic numbers or any other sort of writing on it,
I Acquired it with a whole heap of stuff some time ago
My...

Having a read here..and Just a general quesiton,
Im assuming that Methanol has a lower BTU rating than regular gasoline?

Thanks bill, have teed up the work with a local shop. cheers:)

Hi Guys,

Wondering if anyone knows if I can get away with a "hone only" for a nikasil bore coating for a top end rebuild of an engine? ( 2 stroke )

Has never ceased, minor marks from wear over...

Thanks For the good info guys,
Looks like i might have a look for a sunnen to suit i think,

Cheers,

quick08 :)

Hi Everyone.

Ive been looking around at various cylinder hones, and have seen alot of the "Flex-hone" brand.
They seem to look like a fairly good product?? (someone correct me if need be:D)
...

Thanks for the great info guys.

Ill just stick to my hand mixing/ tank shaking methods i already use! :)

Hi Guys, looking for some advice

Ive read when mixing synthetic 2 stroke oils with some race fuels and in particular, Avgas, that also mixing a small amount of acetone or tolulene helps to...

Hi Guys,

Just wondering what others have found to be the most effective agent for cleaning "stuck pieces" of used gaskets on outboards.

I find that a little bit of kerosene dabbed on the gasket...

What HP is it???

Thanks Sam,

I can see the pros and cons of the two,

As for Avgas, ive read lots of stuff around the net+ books, (and yes dont believe everything you read on the net)
These are NOT my opinions,...

Hi Guys,

Wondering if anyone can help me out in the fuel department.??

The long lived debate between avgas users and hi octane unleaded, in outboard racing has always interested me.

My...

Thanks Gedopa,

Has been a been something ive tried to be careful of when getting the correct clearence. As being an engine with standard internals, I understand that factory/mass produced...

Thanks john,
Ill start to try putting some of this to work!!
Regards.:)

Thanks guys, John thanks for the pics
Have a huge library of info now!, but may need some more money yet.

But just for now, till i start going blueprinting, balancing, decking. etc
If i machine...

Thanks Guys:)

Thanks for the book reference mark, i got my figures from a book by A.graham bell?? I have seen the one by gordon jennings, just dont own it

Fred, the solder test i got around...

Hi There Guys.
My first post so hopfully this goes ok!:)

Im trying to work out some compression figures for my outboard and how much meat to slice off my head, to raise compression. Am wondering...