Dingy Outboard Motor - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Out There > Cruising & Liveaboard Forum
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 01-10-2003
Junior Member
 
Join Date: Mar 2002
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
rclampitt is on a distinguished road
Dingy Outboard Motor

We are thinking about getting an outboard motor for our 8 foot inflatable dingy which we have aboard our Cal 31. What are the thoughts out there re: 2 cycle vs/ 4 cycle and HP enough to drag the boat home vs. what is right for cruising the shoreline in the dingy?

Thanks for any thoughts on this.

RC
Reply With Quote Share with Facebook
  #2  
Old 01-13-2003
Junior Member
 
Join Date: Feb 2001
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
asailor is on a distinguished road
Dingy Outboard Motor

I couldn''t tell u the main difference between a 4 & 2 cycle. I''ve noticed that 4 cycle are alot heavier weight than 2 cycle, therefore tougher to transfer from the sailboat to the dingy, so i''d stay with the lighter. As for how many horsepower, u said u have an 8ft dingy, i''ll assume it''s soft bottom or u would have specified. You most likely won''t be able to plane in a soft bottom, so i''d stick to something around a 5HP (or less), again because of weight, but also price. More horse power probably won''t result in a faster ride. On the transom of most dingy''s it will specify what the max HP engine the boat will hold, i''d be careful about going over that. Good luck.
--ASailor
Reply With Quote Share with Facebook
  #3  
Old 02-19-2003
Member
 
Join Date: Oct 2001
Location: Malvern, Pa
Posts: 41
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
devildad is on a distinguished road
Dingy Outboard Motor

Get the best deal on a two cycle as close to the max that your dingy can handle. When cruising these are our main harbor transportation. If the weather is bad you will appreciate the increased power and if the weathe is fine you will like it even more. I have an old avon rig and has to down size from a 15hp to a 9.8 Nissan because of weight, I am getting older. The 9.8 barley planes the boat with my wife and me in it, but I can put it in on the dingy in less than perfect conditions. I also have a hoist and davits for the dingy which I greatly appreciate.
Reply With Quote Share with Facebook
  #4  
Old 02-21-2003
Member
 
Join Date: Jan 2002
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ricekrgr is on a distinguished road
Dingy Outboard Motor

I have never used an inflatable. However, I helped move a friend''s 22,000# sailboat (failed transmision) with his two cycle 4hp powered (steel)dingy. It took some time to get the boat moving and had almost no effect, in slowing it.
Bob
Reply With Quote Share with Facebook
  #5  
Old 02-21-2003
Member
 
Join Date: Jan 2002
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ricekrgr is on a distinguished road
Dingy Outboard Motor

I have never used an inflatable. However, I helped move a friend''s 22,000# sailboat (failed transmision) with his two cycle 4hp powered (steel)dingy. It took some time to get the boat moving and had almost no effect, in slowing it.
Bob
Reply With Quote Share with Facebook
  #6  
Old 02-21-2003
Member
 
Join Date: Jan 2002
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ricekrgr is on a distinguished road
Dingy Outboard Motor

I have never used an inflatable. However, I helped move a friend''s 22,000# sailboat (failed transmision) with his two cycle 4hp powered (steel)dingy. It took some time to get the boat moving and had almost no effect, in slowing it.
Bob
Reply With Quote Share with Facebook
  #7  
Old 02-21-2003
Member
 
Join Date: Jan 2002
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ricekrgr is on a distinguished road
Dingy Outboard Motor

Sorry, I don''t know what happened.
Reply With Quote Share with Facebook
  #8  
Old 02-21-2003
pirateofcapeann's Avatar
Senior Member
 
Join Date: Aug 2002
Location: Gloucester, Mass. USA
Posts: 373
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 12
pirateofcapeann is on a distinguished road
Dingy Outboard Motor

You obviously didn''t use enough horse-power!

Pi
Reply With Quote Share with Facebook
  #9  
Old 02-22-2003
Member
 
Join Date: Dec 2002
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
Stormer is on a distinguished road
Dingy Outboard Motor

The 4 stroke runs on the gasoline you get from the gas station (or fuel dock)...the 2 stroke takes a 50:1 oil/gas blend. So - you need to mix at the fuel dock when you''re filling your fuel can. Not really a problem since the sell mixing cups to get the proportions right.

Regarding the HP...do the boat specs (either in an owners manual or on line) tell you what size engine the dinghy is rated for?
Reply With Quote Share with Facebook
  #10  
Old 02-22-2003
Senior Member
 
Join Date: Aug 2002
Posts: 172
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
JeffC_ is on a distinguished road
Dingy Outboard Motor

Been there, done that. In summary:

<em>Advantages of the four-stroke:</em>
1. Better fuel economy (approx. 1/3 better).
2. No pre-mixing required (less hassle: ratios, cups, oil, spills, shaking tanks, etc).
3. No smoke/fumes in your eyes & nose.
4. Quieter.
5. #s 1-4 above result in lower environmental impact: evening marina putting is nicer.

<em>Advantages of the two-stroke:</em>
1. Much lighter/easier to haul around.
2. Less weight = easier planing (with hp being equal: my 8''8" dinghy is max-rated @ 5-6 hp).
3. Primitive design means if you know about "lawn-mowers," easier to tear down and work on yourself.

My friend''s 15-hp 2-stroke Tohatsu (God bless you!) weighs as much as my long-shaft 8-horse 4-stroke Honda. I love my ob, until it''s time to haul it around. It must weigh 60lbs, and all the weight is up in the powerhead. It''s run like a champ without so much as a hiccup, but if something did go wrong with it, I don''t think I could disassemble, repair and get it running again like I could a two-stroke motor (but that''s just my level of mechanical ability).

Your 8'' inflatable is likely rated @ 5hp. A 4-stroke motor will be heavier than a 2-stroke, and the overall weight difference, while still a significantly higher percentage, might still yield an <em>overall</em> weight that is manageable, depending on your age/health.

Regarding planing, I have no experience to offer, except that I did put that Honda on my 8''8" inflatable (this exceeded the rating by about 50%) and twisted open the throttle, but after 4 seconds of white-knuckled, fish-tailing acceleration, I realized how insane of an idea it was, and I''ve since repented. I expect a 5hp 2-stroke will plane your dinghy with 2 adults and some additional payload easily enough; whether a 5hp 4-stroke would, I don''t know.

My 2 cents are on the table.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Outboard motor controls waltzingmatilda Gear & Maintenance 3 05-05-2010 09:08 AM
Outboard motor for dingy prussell General Discussion (sailing related) 12 05-05-2003 10:08 AM
Dingy Outboard Motor rclampitt Gear & Maintenance 6 01-21-2003 02:55 PM
Dingy Outboard Motor rclampitt Cruising & Liveaboard Forum 0 01-10-2003 06:38 PM
Honda Outboard Motor xenetia Gear & Maintenance 0 04-19-2001 02:50 PM


All times are GMT -4. The time now is 07:48 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012