I have a 16' "tahiti" hull (ski boat) with a 88 Force 125 I got the new 20 pole tach from Medallion and it says at WOT I'm only getting 4200rpm's th speedo in the dash says 41-43 and my prop is original and the only number is 17. When I throw her in gear she stalls 1/2 the time idle is 600-650...
