Inrease HP from '89 Evinrude 88SPL

pennyanman

Seaman Apprentice
Joined
Jun 12, 2002
Messages
42
How much is involved in upgrading the old 88Spl to the 112spl specification? I believe displacement and maximum spark advance are the same.<br /><br />I'm thinking I could put the 112Spl inner and outer exhaust blister on the back of the block and rejet the carbs to the 112 size jets.<br /><br />Are there any "hidden" differences I need to adress?
 
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