1990 Tohatsu 40

[bassboy1]

I am considering replacing the 1975 Evinrude 40 tiller on my boat with a 1990 Tohatsu 40 3 cyl. on Craigslist right now.
Couple questions.
First of all, what is the weight of the Tohatsu? I think it is 158.

Secondly, how well does this thing troll? Being what my boat is, a kicker motor is going to be a challenge from all aspects. Does this thing troll reasonably well? I will be loosing the weight advantage of my 40 (132 pounds), but if I know for a fact that I will have to have a kicker, as my 40 is not going to want to troll, so my 40 has lost the advantage there.

Thirdly, how modern are the workings in this motor? I know it is carbed. I know my way around motors, but I don't want something that I have to take to a shop because I lack all the electronic scanners and all to read computer codes.

I have only really messed with E/J in the past, so I am a little leery of stepping into this world, but I from what I am reading, it sounds like a lot of people like them.

 

[bassboy1]

Re: 1990 Tohatsu 40

Also, does anyone know where a tiller for one of these could be purchased? Seems parts for these are a little harder to come by than E/J.

 

[ziemann]

Re: 1990 Tohatsu 40

That vintage Tohatsu 40 is a very basic design. Elvin will pipe in with some part numbers I am sure on getting a tiller...

As far as idle speed, it depends on what you are putting it on.... It will idle nicely if the carbs are right....

You will probably find that your post will be transfered shortly to the Nissan/ Tohatsu forum...

 

[bassboy1]

Re: 1990 Tohatsu 40

That vintage Tohatsu 40 is a very basic design. Elvin will pipe in with some part numbers I am sure on getting a tiller...

As far as idle speed, it depends on what you are putting it on.... It will idle nicely if the carbs are right....

You will probably find that your post will be transfered shortly to the Nissan/ Tohatsu forum...

I figured as much on the simplicity. I didn't think they started getting complicated till the late 90s, and on.

The boat that it will be on will be a 1542 mod vee, that is a flat bottom for the aft 2/3s. My Evinrude 40 doesn't like to idle, no matter what I do to it, so I figure that is just the nature of the beast. I don't mind having to drag a 5 gallon bucket with holes in it to slow me down a bit, but only if I can idle for long periods of time, and not run at 1/3 or more throttle.

Not that I care where it is, but why would this be moved into the repair section, as opposed to the nonrepair section?

 

[ziemann]

Re: 1990 Tohatsu 40

you are 100% right...the post is more appropriate here...

 

[TOHATSU GURU]

Re: 1990 Tohatsu 40

Parts are available from any Nissan or Tohatsu dealer.

"what is the weight of the Tohatsu?" Depends on the model. There are four configurations in the tiller model for that series.

"how well does this thing troll? Does this thing troll reasonably well?" It depends on what what you are comparing it to. Better than any 2 cylinder, carbed 40. Not as well as a 3 cylinder carbed 4-stroke.

"how modern are the workings in this motor?" Armed with a service manual, multi-tester and six months of outboard mechanical experience, its a piece of cake.

 

[bassboy1]

Re: 1990 Tohatsu 40

"how well does this thing troll? Does this thing troll reasonably well?" It depends on what what you are comparing it to. Better than any 2 cylinder, carbed 40. Not as well as a 3 cylinder carbed 4-stroke.

I am not expecting it to idle as well as my little Evinrude 4 deluxe (never found any motor that idles that well), but if I were to run this motor at idle speed for a period of 2 hours or more, would it try to load up and stall out on me, or sputter, spit and cough like crazy? I don't mind a "rough" sounding idle, or the occasional sputter, pop or miss, but I don't want something that constantly sounds like it is trying to throw various parts off, or something that won't idle for more than 10 minutes.

 

[TOHATSU GURU]

Re: 1990 Tohatsu 40

It would defintely load up after 45 minutes. Although, there are things you could do to avoid it. New plugs, synthetic oil and leaning out the flow rate on the oil pump could get you what you are looking for.