Just upgraded my 4 cyl to 8. Tach not adjustable. Anyone have this type or a "star wars" type. I am told that the "star wars" type will fit. In that year (1987) US Marine tachs did not have a n adjustment screw. They are specific to engine type.
I'm selling the same style tach on eBay right now. I'm not sure what your 8 cylinder engine is, but my tach is from a 1986 Bayliner with 125hp Force outboard. It is for a 20-pole ignition system, and one the back says 20-pole or 8-pole. Anyway, here's a link to the auction and a pic. http://cgi.ebay.com/ebaymotors/US-M...6307317QQptZBoatQ5fPartsQ5fAccessoriesQ5fGear
The tach in your attached photo IS a "Star Wars" tach. They don't show one for an 8 cylinder on the website right now, but check out www.greatlakesskipper.com . Give them a call to see if they can find one for you.
