Re: johnson fastrike
I see its a 1996 with optical ignition 60 deg V6 looper.
See if ken cook has your factory service manual
www.outboardbooks.com
or
www.marineengine.com ( I think thats the link)
MAybe this one covers your engine, make certain.
http://www.marineengine.com/parts/p...e=Service+Manual&Engine=438223&Model=150GLEDB
If no luck ebay usually has them.
You're gonna love outboards if you know cars.
The odd thing is the 6 cylinders are like 6 seperate engines , but joined at the crank. They have their own carbs and many problems originate in the carbs. Rebuilding carbs is a regular thing due to the oil being mixed with the fuel, its easier than a car carb.
I'd start by baselining the engine,
compression should be within 10% on all cylinders.
If not try seafoaming it. Mine are around 80-85 PSI.
Other engines run much higher compression but these big loopers don't.
Spark needs to jump 7/16ths inch.
If those check out, start in on the fuel system.
How old are the lines? bulb?
Has the tanks been cleaned ?
fuel filter (cone shaped between the carbs)
If you don't know the history and its new to you its smart money to replace all the lines and clean tank.
Order carb kits here on iBoats and rebuild them, usually around $20 per kit.
Make sure you have the correct Champion sparkplugs, they don't seem to like other brands.
if that don't correct it you'll need a DVA multimeter and start testing the coils , stator and powerpack etc. If you don't have one you can get them on ebay for around $60.
This section applies to your engine too.
http://www.maxrules.com/fixomcoisignition.html
If you have the DVA meter you can follow these ignition tests.
