Shop iboats.com for all your boating needs!

Yamaha Propeller
Yamaha Propeller
Suzuki Propeller
Suzuki Propeller
Yamaha Manual
Yamaha Manual
Suzuki Manual
Suzuki Manual
Please note this thread has been inactive for 90 days. For the best results, please start a new thread.
Results 1 to 2 of 2
  1. September 17th, 2011, 01:16 PM #1
    123fishhunter
    [OP] 123fishhunter is offline
    Cadet
    Join Date
    Sep 2011
    Posts
    3

    Cool 70 hp yamaha 2 stroke

    I was told by several people that you can convert a 70 hp 2 stroke to a 90 hp 2 stroke by removing a restrictor plate . Is this possible and what needs to be done to accomplish this
    Reply With Quote Reply With Quote
  2. September 17th, 2011, 02:41 PM #2
    mphelle8vld
    mphelle8vld is online now
    Petty Officer 2nd Class
    Join Date
    Aug 2005
    Location
    St Louis
    Posts
    181

    Default Re: 70 hp yamaha 2 stroke

    Not possible, the 70hp powerhead has 51.8 cubic inches of displacement and the 90hp has 69.6
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. yamaha 2 stroke 50 honda bf50 4 stroke
    By skoskii in forum Non-Repair Outboard Discussions
    Replies: 2
    Last Post: April 4th, 2010, 07:44 PM
  2. 150 yamaha 2 stroke(2007) vs. 200 yamaha 4 stroke
    By flavtfan in forum Yamaha & Suzuki Outboards
    Replies: 3
    Last Post: March 28th, 2008, 09:18 PM
  3. RODBOLT or yamaha guys! Yamaha 50hp 4 stroke low compression question!
    By oonighttrain in forum Yamaha & Suzuki Outboards
    Replies: 8
    Last Post: January 22nd, 2008, 09:19 AM
  4. Yamaha F225 (4 Stroke) vs. Yamaha Z250 (2 stroke) HPDI
    By jhough76 in forum Yamaha & Suzuki Outboards
    Replies: 4
    Last Post: March 14th, 2003, 09:11 AM
  5. Merc 115 4-stroke same engine as Yamaha 115 4 stroke?
    By maillon in forum Mercury & Mariner Outboards
    Replies: 3
    Last Post: March 13th, 2003, 06:21 AM

  1. iboats Forum Directory - Over 100,000 forum posts organized by topic

    1. Outboard Motor Topics
      Mercury Outboards
      Johnson Outboards
      Evinrude Outboards
      Force Outboards
      Yamaha Outboards
      Mariner Outboards
      Suzuki Outboards
      Honda Outboards
      Chrysler Outboards
      Tohatsu Outboards
      Nissan Outboards
      Outboard Motors: non-repair
      Vintage Outboards

      I/O and Inboard Topics
      MerCruiser
      OMC I/O, Inboard
      Volvo Penta

      Propeller Help
      Boat Propellers

      		Boat Repair and Products
      Boat Building and Repair
      Fiberglass Boat Repair
      Marine Electronics
      Boat Trailers and Towing
      Boat Names
      Boat Covers
      Boat Parts

      Boating Activities Talk
      Boating Topics and Questions
      Boating Activities and Destinations
      Boating Blunders
      Boat Shows
      Wakeboarding
      Water Skiing

      Fishing Discussions
      Freshwater Fishing
      Saltwater Fishing

      		Boat Type Topics
      Aluminum Boats
      Bass Boats
      Bowrider Boats
      Center Console Boats
      Cruiser Boats
      Cuddy Cabin Boats
      Deckboats
      Fishing Boats
      Fish and Ski Boats
      Houseboats
      Jet Boats
      Jon Boats
      Pontoon Boats
      Powerboats
      PWC Forum
      Ski Boats
      New Boats
      Used Boats

      Boat Manufacturers
      Boats (250+ Manufacturers)
      Bayliner Boats
      Sea Ray Boats
      Zodiac Boats