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Old 10 September 2010, 09:00   #1
Member
 
Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
BB's go fast SIB !

Thought i would get some pictures up of my current toy. Due to lack or storage space, anything on a trailer simply wasn't an option.

In a bid to satisfy my go fast needs, a Zodiac Fastroller 2.85m (9.35 ft) tiny isn't it? was aquired. I then picked up a 97 Tohatsu 30 HP.

Currently re-painting the motor, doing a few changes.

Plans to make a new thicker floor, new transom, and add some hi-jackers.

Goal is 70 km/h , which should put the wind up a few other's at the local dam !!
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Old 10 September 2010, 09:09   #2
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Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
More pictures, sorry about quality, most of them came from my mobile.
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Old 10 September 2010, 09:12   #3
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Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
Fixed that nasty chunk out of the skeg.
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Old 12 September 2010, 11:32   #4
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Country: Canada
Town: British Columbia
Make: Gemini
Length: 4m +
Engine: 40hp 2 str
Join Date: Oct 2003
Posts: 2,151
Interesting. Will keep an eye on the Darwin Awards website for updates.
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Old 12 September 2010, 13:47   #5
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Country: UK - England
Town: bristol
Boat name: astra
Make: zodiac 340s
Length: 3m +
Engine: 15hp mariner
MMSI: 235905847
Join Date: Mar 2009
Posts: 230
That should fly, looks good
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Old 15 September 2010, 04:04   #6
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Country: Australia
Town: Cairns
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Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
Darwin awards, that's not very nice

Finally started applying the paint. With my limited space, and a 16 hour reccomended drying time between each coat, it's going to be a very slow process.

Black is going on nicely, pan section i completely stuffed up and will have to re-do. I didn't know that their is a chemical release process with the primer that must sit for atleast 24 hours.
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Old 26 October 2010, 05:53   #7
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Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
Bit of an update, i'm not finished yet, but getting close. The motor called for a bit more work than i was originally planning so it has set me back a bit.

So far i have :

- Fitted solid alloy mounts top and bottom.
- Replaced the top and bottom swivel tubes bushes, thrust plates, and fitted new o-rings.
- Fitted new transom brackets.
- Fitted new tilt tube, and new tube bushings.
- Replaced impellor, top and bottom gaskets, fitted new stainless screws.
- Replaced bearing carrier oil seal.
- Fitted new pan seal, new pan bolts, rubbers, and spacers. Completely
sealed pan section of with sikaflex.
- Replaced power head base gasket

So far modification wise i have :
- Driller 4 x 0.75 Inch holes above cav plate for exhaust releif.
- Removed tilt mechanism and shallow drive unit to shed unnesacary weight.
- Fitted PowerTech SRA 10 in 10 P propellor.

Future plans :
- Remove starter ring gear and lighten flywheel
- Fit Boyosen reeds.
- Experiment with different length velocity stacks

I have ordered a new cylinder head gasket and i am looking into how much can be machined off in order to gain more compression before fitting the new gasket.
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Old 26 October 2010, 05:56   #8
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Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
Starting on the new floor this week, i'm going to have to experiment with some different sized off cuts, to find out how thick i can go with the floor boards.

I'll also be coming up with a way of securing the fuel tank both at the front and rear of the hull.
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Old 26 October 2010, 06:26   #9
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Country: UK - England
Town: Hythe
Boat name: To be confirmed
Make: Gemini
Length: 9m +
Engine: Twin V6 Suzuki DF250
Join Date: Jan 2008
Posts: 283
Yowch,

That thing is going to be a missile!

re the transom and a 30hp..... is there too much weight there?
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Old 26 October 2010, 06:52   #10
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Country: Australia
Town: Cairns
Boat name: KAHUNAS
Make: Zodiac
Length: under 3m
Engine: 30 Tohatsu
MMSI: wft is a dsc mmsi ?
Join Date: Jun 2010
Posts: 82
Most likely too much weight yes.

The motor weighs 52 kg, maybe a tad lighter now, the transom is rated to 50 kg. So it's right on the limit either way i look at it.

I plan on attaching some extra D straps and fitting some bungee straps between both the floor and the transom, and possibly the tubes.

I want to reduce the forward and backward flex on the transom, without making anything too rigid and putting too much stress on any one particular area.
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