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1998 90 hp tohatsu powerhead

O

olivemw

New member
"i have a 1998 tohatsu 90 hp motor. two of the piston rings have blown. i have found a 2006 powerhead and block with fuel injection. I know there will probably be a few mods, but has anyone had any experience with these two different motors. is there any way the powerhead will match up to what i have. any help would be appreciated. thanks"
 
Where are you located? I'm

Where are you located? I'm surprised you found a blown 2006 anywhere. That's pretty rare(except for one commercial operator in Alaska that destroyed three or four right together) and the block would have been retrieved by Tohatsu for warranty analysis.
 
"early 90's nissan 90 hp,

"early 90's nissan 90 hp, 3 cyl., oil injected, top cylinder 30lbs, bottom two 130 lbs. Broke ring? or what other possibility? What is best solution and is it hard to remove piston. Thanks"
 
"Cracked block, slagged piston

"Cracked block, slagged piston, slagged rings, slagged block, slagged head or bad head gasket. You have to pull the head to check and pulling a piston involves disassembly of the power head."
 
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