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Tohatsu 98 4 stroke 2007 model

fishmas

New member
I have a Tohatsu 9.8 4 stroke

I have a Tohatsu 9.8 4 stroke outboard with under 20 hours on it. I primarily fish lakes above 6000 feet and have the high altitude jets installed.

The top spark plug is really black and sooty but the bottom plug is clean and the engine seems to lack hp. Any suggestions
 
Each inch is a 200 RPM increas

Each inch is a 200 RPM increase. Depending on which jet set was replaced....Either 1 or 2 inches.
 
"the jets are for above 6000 f

"the jets are for above 6000 feet to lower orbit, that is the way it was advertised, and I called a lot of places trying to find a prop but no one had one , any suggestions on where to look as I live in Bishop California about 200 miles from no where"
 
"Your one of our victims then[

"Your one of our victims then
Go back to our website and look under propellers for a selection for your model. I can't recommend a specific pitch, but if I could it would be the 7 pitch on page 2 of the 8-20 hp propellers"
 
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