yamaha tracker

marcengillb

Cadet
Joined
Feb 20, 2005
Messages
22
Will a prop off of a 1991 yamaha 115 fit a 1995 merc 90hp? What is the best prop for an aluminum bass boat?TRACKER PRO 18 90HP MERC?3 blade or 4 blade?pitch??
 

walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: yamaha tracker

The prop "may" fit with proper thrust and aft washers...<br />You'll want to stick with a 3-blade, but we need WOT figures with a known prop, with a normal load. It's the only way to know where you are now.
 

marcengillb

Cadet
Joined
Feb 20, 2005
Messages
22
Re: yamaha tracker

Just wanted to let you know a yamaha prop will fit a merc,just needed 2 washers.The yamaha prop lifted the entire boat not just the bow.Maybe its because it is stainless steel.I went from a merc 23 pitch aluminum to a 19 pitch yamaha stainless,It was like adding 50 hp.But I still have a problem,my tach works fine up to 5200 then when I give it that last little bit of throtle the tach backs up about 200 rpms,any ideas what could cause this?Also the tach doesent work at idle,it starts working at about 1200rpms??
 
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