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Old 22 May 2007, 02:18   #11
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Country: France
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it s better to have a factory manual to check advance

i ve factory manual but it's for the 50G-60F-70 80A 90 Al yam 2 stroke

some info for merc here :

http://forums.iboats.com/showthread.php?t=168855

i ve made a tuto for merc 40 cv / 2 stroke in french

http://www.pneuboat.com/dossier_prat...cv_mercury.pdf

sorry in french you must translate :-)

http://img249.imageshack.us/img249/7241/10418331tb9.png

bye
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Old 22 May 2007, 06:19   #12
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and next

http://img515.imageshack.us/img515/3443/51728370pb4.png
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Old 22 May 2007, 15:47   #13
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I am very mechanicly minded and have worked on my own engines all my life!

I have a V8 JAGUAR, if i can work on that im dam sure i can work on simple 2 stroke.

Amitedley this is my first outboard, and is a slightley different breed to motoring, but it does not take a rocket scientist just some good advice, witch is what i thought this forum was for!!.

Can you honestley tell me i can set the top end timing on my yam 80 without running the engine??.

I have had some good advice and help from this forum, i have also had some bad (BEWARE).

If you are mechanicly minded with a degree of common, have the right tools and the right advice there is no reason you cant do it yourself!.

If you cant do it then you have to pay somebody, it is the easy way but when you break down in the middle of the sea you will have no idea what is wrong.

Im sorry but i do take offence to the last reply!
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Old 22 May 2007, 18:39   #14
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Quote:
Originally Posted by one eye View Post
I am very mechanicly minded and have worked on my own engines all my life!

I have a V8 JAGUAR, if i can work on that im dam sure i can work on simple 2 stroke.

Amitedley this is my first outboard, and is a slightley different breed to motoring, but it does not take a rocket scientist just some good advice, witch is what i thought this forum was for!!.

Can you honestley tell me i can set the top end timing on my yam 80 without running the engine??.

I have had some good advice and help from this forum, i have also had some bad (BEWARE).

If you are mechanicly minded with a degree of common, have the right tools and the right advice there is no reason you cant do it yourself!.

If you cant do it then you have to pay somebody, it is the easy way but when you break down in the middle of the sea you will have no idea what is wrong.

Im sorry but i do take offence to the last reply!
Take all the offence you like-I said it wasn't meant that way. I'm just fed up with fixing other people's foulups when they said exactly what you just did.

1)Outboards are NOT just a 'simple 2-stroke'.They require a bit more than being mechanically minded with a bit of common sense-they require specific knowledge and certain special tools too. If you treat them as 'just a simple 2-stroke' you'll end up with the RNLI looking for you.Your life can depend on that engine and there's no hard shoulder if you break down.

2)When you break down in the middle of the sea there's very little you can do bar change a spark plug or a fuel bulb-so you have to have it right 1st time. You can't realistically do anything else on a boat that's rolling about.

3)I would suggest that on a job as critical as timing an engine that runs under heavy load for extended periods the best course of action would be to talk nicely to the guy you pay to do the job so you can do it next time-and get the specific tips you need for your specific engine.

By the way, you can make a test wheel by cutting down a spare prop til you can hit 5000 rpm in a tank. It'll make it a lot easier.
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Old 26 May 2007, 06:32   #15
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any who, 2 strokes are simple, but then again they are all vary simple,
you can cheat it, runnin in N, just advance the timin linkage, and short change it a1/2 a deg and you'll be fine.

the only one that can tell YOU what you can or can not do your self is you.
or your a puppet.
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