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Old 09 May 2010, 15:57   #31
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Country: UK - Wales
Town: Trelogan
Boat name: Supacat
Make: TT-Supacat
Length: 4m +
Engine: Tohatsu 50 outboard
Join Date: Jun 2008
Posts: 92
Hi,
Please dont take this the wrong way. But, I had the same problem with my Tohat 50, found out that it was the fuel line and primer bulb. Every time I primed the engine and filled the fuel bowl in the engine the petrol used to squeeze through the bulb joints on to my hand which I then thought was normal because I had over pressurised the line. I then changed the line and bulb as a last resort and this cured it.
I bet you have already checked this as you are doing quite a comprehensive rebuild, but if you havent, please try it.

Regards

Howy
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Old 10 May 2010, 04:28   #32
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Country: UK - Scotland
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Quote:
Originally Posted by howy View Post
Hi,
Please dont take this the wrong way. But, I had the same problem with my Tohat 50, found out that it was the fuel line and primer bulb. Every time I primed the engine and filled the fuel bowl in the engine the petrol used to squeeze through the bulb joints on to my hand which I then thought was normal because I had over pressurised the line. I then changed the line and bulb as a last resort and this cured it.
I bet you have already checked this as you are doing quite a comprehensive rebuild, but if you havent, please try it.

Regards

Howy
Thanks I have stripped and cleaned the fuel line which started to leak when I reassembled so I replaced the clips and checked for leaks all seams fine. However I do have a spare connected to my bladder tank so might be an idea to remove it and try it on my plastic tank.

Also I have removed and tested the coils, found on the secondard circuit two of the coils read almost identical but the third was down by a fair bit. Removed the HT Caps and retested all three coils which were now almost identical readings. So order three new uprated caps see if this will make a difference.
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Old 11 May 2010, 11:05   #33
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New HT Caps arrived, much tighter fit than the orginal also rubber so less chance of breaking them.

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Old 14 May 2010, 10:48   #34
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Country: UK - Scotland
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Finally got a chance to run the boat for about 30 mins today and sucess!

Ran at full throttle without any cutting out or surging , although Tiny Tach stopped working again, so will need to look at it again.

Next step to check all settings again and adjust fuel/air mixture. Final week of leave so hoping to get a couple more trips out and will get round to painting the Zapcat logos later on.
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Old 17 May 2010, 13:57   #35
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Another run out on the boat today. Tiny Tach still not working think its faulty will contact Tiny Tach Uk for advice.

Tank almost empty of fuel so filled it up with some fresh super unleaded, got the shock of my life when the engine started on the first pull. Normally takes 4-6 pulls to start from cold. (fresh fuel and new Ht Caps working well)

Warmed the engine up and ran a can of Quicksilver Power Tune through the engine, smoked lots and lots of crap came out of the exhaust. Only downside the crap stuck to the tubes and transom. Most of it has scrubbed off but left a yellow stain, might try some thinners see if it will remove the stain.



Small video of the boat doing some circles not great quality as recorded on my mobile phone.


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Old 10 June 2010, 09:36   #36
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Boat still running strong, been in touch with Tiny Tach who think the Tach has gone faulty and have sent me a replacement. So will fit at some point.

As the weather has improved I have started to fit the Zapcat stencil bit of a nightmare of a job.

I washed the tube and wet the back of the stencil to help it slide into place, but I found it would not stick in place and loads of bubbles.




Peeled it back off and dried the tanks and stencil and reapplied to tube. Went on better this time, used masking tape to hold it all in place until it drys and hopefully sticks to the tube.



Planning to paint tomorrow if weather holds. Then repeat on other side if it looks alright!
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Old 11 June 2010, 20:52   #37
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What an excellent thread! I just read through it and the pictures and write up are superb. I'm looking forward to seeing how the stenciled graphics turn out.

I tried applying backed vinyl registration #s to my rub strakes, but found they'd always peel off after a few weeks of boating. I finally got fed up with this happening and used the vinyl outlines of these #s as temporary stencils, applied some 3M 5200 directly onto the rubbing strakes, then peeled off the vinyl stencils. Not really pretty, but the #s are now clearly visible and I'm certain that the 5200 won't be peeling off anytime soon.
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Old 12 June 2010, 07:01   #38
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Originally Posted by prairie tuber View Post
What an excellent thread! I just read through it and the pictures and write up are superb. I'm looking forward to seeing how the stenciled graphics turn out.
Thanks its not gone as smoothly as I had hoped.

The stencil has been painted and left to dry.

Started to pull off the stencil today and it took the paint with it, so had to cut round the stencil with a sharpe blade. Bit rough about the edges so will have to trim it up a bit.



Still not sure if I have used the correct paint,(Inflatable Boat Paint) will take the boat a blast and see if the paint comes off or not.
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Old 22 May 2011, 06:21   #39
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Boat name: zapcat 74
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Hey bobbyjoe, how did you get on with the refurb of the steering?
I have lots of play in mine. The rubber mounts are shot, and the steering tube has about 1mm of play.
Did the new bushes sort yours out?

Also, the new engine mounts you got, did you get standard tohatsu, or go for solid or polyurethane type ones?

Cheers,

D
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Old 30 June 2011, 15:01   #40
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I put in the standard Tohatsu Mounts.

And as for the steering I found the bushes sorted it out, however you might be able to get away with just tightening the steering arm up.

Quote:
Originally Posted by deeyup View Post
Hey bobbyjoe, how did you get on with the refurb of the steering?
I have lots of play in mine. The rubber mounts are shot, and the steering tube has about 1mm of play.
Did the new bushes sort yours out?

Also, the new engine mounts you got, did you get standard tohatsu, or go for solid or polyurethane type ones?

Cheers,

D
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