tohatsu m3.5a wont stay running

bchinn

Cadet
Thread starter
Joined
Mar 16, 2006
Messages
10
OK so ive posted several times about my motor, and thanks to the help ive fixed/replaced a good bit of stuff on it. Replaced most of the powerhead gaskets, chipped all the salt out of the water jacket, changed impeller.<br /><br />It now pumps water, but it still doesn't run well. I have fuel to the carb, air intake is fine, and i have spark. It is very hard to get started and if i do get it started it will only run at high rpms with the throttle way open. If i try to slow it down it will just die. <br /><br />The mechanicals look good. What all can i check and look for as far as the topside electrical components go aside from the plug. Is there a procedure to test the coil pack looking black box on the side of the motor? <br /><br />If it were a car id say it seems like the timing is off.<br /><br />Suggestions?<br /><br />Thanks<br />Brian
 

TOHATSU GURU

Admiral
Joined
Jul 22, 2004
Messages
6,164
Re: tohatsu m3.5a wont stay running

You need to get a service manual to get the test values and test procedures.
 

bchinn

Cadet
Thread starter
Joined
Mar 16, 2006
Messages
10
Re: tohatsu m3.5a wont stay running

Where can i find said manual
 

TGuy

Petty Officer 1st Class
Joined
Mar 17, 2005
Messages
217
Re: tohatsu m3.5a wont stay running

Try the Internet...the world's most powerful reference tool. There's a cool website called "google" that lets you find stuff on the 'net. Go there and search for "tohatsu service manual". Hopefully you can figure it out from there :D
 

ziemann

Chief Petty Officer
Joined
Apr 28, 2004
Messages
584
Re: tohatsu m3.5a wont stay running

Iboats sponsors these boards- try them first. If you cannot find what you want there, internetoutboards.com provides fantastic service. I tend to prefer the OEM service manual. Your outboard sounds like a real project...
 
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