Tohatsu troubles - Page 5 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Chat  
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 > On Board > Gear & Maintenance
 Not a Member? 


Like Tree7Likes
Reply
 
LinkBack Thread Tools
  #41  
Old 07-11-2013
kellysails's Avatar
Puget Sound Pounder
 
Join Date: Nov 2008
Location: Bainbridge Island, Port Madison, WA
Posts: 625
Thanks: 20
Thanked 7 Times in 7 Posts
Rep Power: 7
kellysails is on a distinguished road
Re: Tohatsu troubles

My wife just rescued our Tohatsu gas tank from the sun. She said there was a lot of pressure in it when she loosened the cap. Crap, dogged a bullet on that one, it's always humbling when I realize what an idiot I can be at times. Jeeezzzz.

It never occurred to me that the valve was one way.
Reply With Quote Quick reply to this message Share with Facebook
  #42  
Old 07-12-2013
Banned
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,591
Thanks: 2
Thanked 115 Times in 113 Posts
Rep Power: 0
dabnis is on a distinguished road
Re: Tohatsu troubles

Quote:
Originally Posted by kellysails View Post
My wife just rescued our Tohatsu gas tank from the sun. She said there was a lot of pressure in it when she loosened the cap. Crap, dogged a bullet on that one, it's always humbling when I realize what an idiot I can be at times. Jeeezzzz.

It never occurred to me that the valve was one way.
I wonder if the tank manufacturers conducted a failure test with the one way vent caps? As far as I could see, there was just the small one way valve in the middle of the cap. The one time I left it in the sun there was a LOT of pressure in the tank.

Has anyone had a tank split or leak because of the excess pressure that can develop?

Paul T
Reply With Quote Quick reply to this message Share with Facebook
  #43  
Old 07-14-2013
Senior Member
 
Join Date: Apr 2012
Location: West Hartford, CT
Posts: 217
Thanks: 18
Thanked 4 Times in 4 Posts
Rep Power: 3
cthoops is on a distinguished road
Re: Tohatsu troubles

Just wanted to post an update.

Today Mr. Cthoops and I removed the carb, sprayed it with carb cleaner (black, dirty stuff was definitely coming out), used a can of air to dry it out, emptied the external fuel tank into the car, put brand new gas into the fuel tank, and added a different carb product to the gas (can't remember the exact name right now, but it's supposed to keep the jets clean). We also changed the spark plug for good measure (the old one was looking kind of dirty).

After putting the carb back in, we crossed our fingers and started it up. It's purring like a kitten. I don't think its sounded this quiet and smooth since we bought the boat in April!

This was the first time either one of us had done anything resembling outboard maintenance, so we are pretty darn proud of ourselves. Everyone was right - it really wasn't that hard. And we didn't drop anything in the water!! Hopefully this will be the last of our outboard issues for the rest of the season.

Thanks everyone for the advice and encouragement.
__________________
"Pegu Club"
1975 Bristol 24 Corsair

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #44  
Old 07-14-2013
T37Chef's Avatar
Senior Member
 
Join Date: Oct 2006
Posts: 4,437
Thanks: 74
Thanked 41 Times in 36 Posts
Rep Power: 9
T37Chef will become famous soon enough
Hey Congrats! Told ya so didn't we? You save yourself a $100 and taught yourself something at the same time, I love when that happens.

I had been agonizing over my battery project but eventually I just started doing it and I know where everything is and how it works.

Cheers
cthoops and Pegu club like this.
__________________
Cheers,
Shawn & the crew of S/V Windgeist

1982 Tartan 37 CB - Hull #358


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #45  
Old 07-15-2013
Banned
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,591
Thanks: 2
Thanked 115 Times in 113 Posts
Rep Power: 0
dabnis is on a distinguished road
Re: Tohatsu troubles

Quote:
Originally Posted by cthoops View Post
Just wanted to post an update.

Today Mr. Cthoops and I removed the carb, sprayed it with carb cleaner (black, dirty stuff was definitely coming out), used a can of air to dry it out, emptied the external fuel tank into the car, put brand new gas into the fuel tank, and added a different carb product to the gas (can't remember the exact name right now, but it's supposed to keep the jets clean). We also changed the spark plug for good measure (the old one was looking kind of dirty).

After putting the carb back in, we crossed our fingers and started it up. It's purring like a kitten. I don't think its sounded this quiet and smooth since we bought the boat in April!

This was the first time either one of us had done anything resembling outboard maintenance, so we are pretty darn proud of ourselves. Everyone was right - it really wasn't that hard. And we didn't drop anything in the water!! Hopefully this will be the last of our outboard issues for the rest of the season.

Thanks everyone for the advice and encouragement.
Good for you!!, Thanks for the feedback. Suggest you drain the carb if it is going to sit more than a week or two.

Paul T
Reply With Quote Quick reply to this message Share with Facebook
  #46  
Old 07-16-2013
Sternik's Avatar
Solina 27
 
Join Date: Oct 2010
Location: Edmonton, AB
Posts: 58
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 5
Sternik is on a distinguished road
Re: Tohatsu troubles

Having 2009 Tohatsu 9.8hp for the last 4 seasons, the only real problem I came across is the upper cylinder having tendency to flood, which subsequently fairly quickly tends to foul the spark plug - I always carry two new with me (they get changed each season regardless of condition). The engine (my experience) does not like any other plugs than the NGK. I have tried once Champion equivalent and Bosch (I was told these were equivalents), and run into a lot of uneven idle, hesitation and poor performance. Do very carefully gap the plugs to specifications - failure (again, my experience) caused poor operation and misfire. I change fuel filter after each season and add fuel stabiliser to the last tank of fuel of the season. I have disassembled carburetor this spring and found it in surprisingly clean condition - bottom line is the fuel quality. Besides that, the motor so far is rock-solid and my fuel usage is about 1.2-1.5l/hr at about 60% throttle.
Reply With Quote Quick reply to this message Share with Facebook
  #47  
Old 08-07-2013
Senior Member
 
Join Date: Apr 2012
Location: West Hartford, CT
Posts: 217
Thanks: 18
Thanked 4 Times in 4 Posts
Rep Power: 3
cthoops is on a distinguished road
Re: Tohatsu troubles

At the risk of jinxing myself, I thought I would post this update so that it might help someone in the future.

We thought that after cleaning the carb and changing the spark plug our troubles were fixed because the outboard idled smoothly on the mooring. Unfortunately when we actually put it in gear and headed out we discovered that while the symptoms had improved somewhat, the engine still wasn't happy.

Someone on this forum had suggested it was likely either the carb or the fuel lines, so we replaced the lines running from the external fuel tank to the outboard (including the lines leading to and from the separator filter), and this included a new primer bulb. I'm thinking perhaps the PO had used the lines from the previous, smaller outboard because the new ones seemed more robust and "bigger". Regardless, they likely needed to be replaced because when Mr. Cthoops started to remove the old line from the separator filter, it immediately split in half.

Anyway, I don't know if the lines weren't large enough or there was gunk that had built up in them, but the bottom line is we've taken the boat out twice since replacing all of this and the outboard has truly never sounded better. It's quieter and runs ever-so-smooth. I am SO relieved!

Thanks again for the advice, everyone.
T37Chef likes this.
__________________
"Pegu Club"
1975 Bristol 24 Corsair

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #48  
Old 08-07-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,431
Thanks: 4
Thanked 53 Times in 53 Posts
Rep Power: 5
MarkSF is on a distinguished road
Re: Tohatsu troubles

Quote:
Originally Posted by kellysails View Post
I have the same exact setup.

Wow, thanks Paul T, it never occurred to me that the valve was one way. My dink and motor have been sitting in the sun all week. I just sent my wife down to the boat to check the gas tank, damn. I should have thought about that.
The new epa-compliant tanks will hold pressure up to something between 5 and 7 PSI. They will swell visibly, but have been tested to hold this pressure. T

The pressure your wife saw might have seemed a lot, but may have been within the designed range. Still, it's not good practice to let the tank sit in the sun.

A vital part of the safety of these tanks is not over-filling them - they need some air space at the top of the tank.

http://www.moellermarine.com/sites/m..._epa_tanks.pdf
__________________
Bristol 31.1, San Francisco Bay
Reply With Quote Quick reply to this message Share with Facebook
  #49  
Old 08-07-2013
Banned
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,591
Thanks: 2
Thanked 115 Times in 113 Posts
Rep Power: 0
dabnis is on a distinguished road
Re: Tohatsu troubles

Quote:
Originally Posted by MarkSF View Post
The new epa-compliant tanks will hold pressure up to something between 5 and 7 PSI. They will swell visibly, but have been tested to hold this pressure. T

The pressure your wife saw might have seemed a lot, but may have been within the designed range. Still, it's not good practice to let the tank sit in the sun.

A vital part of the safety of these tanks is not over-filling them - they need some air space at the top of the tank.

http://www.moellermarine.com/sites/m..._epa_tanks.pdf
Interesting link, apparently they will vent outwards at about 7 lbs, which seems like a lot? As mentioned in an earlier post, I modified my cap to vent both ways, which was a mistake as it appears the primer bulb doesn't work well without pressure in the tank?

If you don't want to be sprayed with gas when disconnecting the hose, just loosen the cap first. I just ordered a replacement cap for the cap I modified, about a $50 mistake.

Paul T
Reply With Quote Quick reply to this message Share with Facebook
  #50  
Old 08-08-2013
Junior Member
 
Join Date: Aug 2011
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
sebez is on a distinguished road
Re: Tohatsu troubles

Just as a side note, Tohatsu is the manufacturer of all small outboards. They build them and badge them as Suzuki, Mercury, Evinrude etc. Kepp your fuel clean and run them periodically. I dont drain the bowl or let it run dry and I also use alcohol free fuel with stabilizer.
__________________
1982 Morgan 321
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
head troubles...... twisted23 Gear & Maintenance 21 10-14-2010 09:22 AM
Maxsea and USB GPS troubles FollySailor Gear & Maintenance 2 07-08-2010 07:11 AM
overcoming some VHF and GPS troubles CaptainRonandAshley2 General Discussion (sailing related) 1 08-27-2008 04:38 AM
More 12v Troubles and ?'s Perithead Gear & Maintenance 7 11-26-2007 12:33 PM
Starting troubles raybies Gear & Maintenance 4 05-14-2003 08:24 AM


All times are GMT -4. The time now is 08:40 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.