Vintage Grumble

I never even considered that both cylinders might fire at once. Surely a spanny would only work if they did fire at once?

Its a Type 373, they made them for like 22 years, but i'm failing to find much info on them. https://www.rotax.com/en/100-years/historical-vehicles-engines/detail/type-373.html

Would an expansion chamber work on a twin with single exhaust outlet? I might remove the big exhaust block on one of the spare motors and see if it has two ports under there.

We are one with each other.

My wolves are still glowing from all the UV. P. S. that sounds ace.

I hope I can get into it, without flipping it over, lololols.

It sounds like a lot of big boy jet boats with V6's and small/jap V8's aim to do around 4500rpm, I guess you have to try get the bite of the impeller correct so you have enough grunt to drive it, but not too much grunt that you can cause cavitation? / I don't really have a clue TBH. I've seen a few mini boats with road bike motors, but never looked into how they do the drive? I'd be tempted to strip the gearbox and clutch out or even remove the housing if possible, to make it simpler and lighter. But as mentioned above, probably not worth the effort. True that, I spent a lot of time on stand up jet skis as a young man, so kinda know what to do. Mind you, jumping off a stand up is easier than getting out of a tiny boat in a hurry / i'll probably struggle to get into trouble in such a slow boat, lololololols.

Also, not sure what they do about gearbox/clutch/extra junk in bike motors when they put them in boats? Just leave it in there or remove it all?

I has a GPZ600 in the shed, and did think about it, but probably too long.

I hope to come slam into your beach one day soon. (Not an innuendo) A cavitation is the closest I can do mate.

Its a UA brand, type 64, same as on here, but single stage: http://almarinemeteor.blogspot.com/2011/08/

Ahh, its defiantly Axial.

A what now?

SHARNS: So I collected this on Saturday, 5 mins after picking it up, I stopped to get lunch. I returned from the shop to find an older gentleman taking pics of it. Barry bait confirmed. He was surprised at its county of origin, stating "I didn't know the poms made jet boats?! “ Any how, once home, I did some research on what the boat actually is, as the last owner wasn't 100% sure. He thought it was a Mitchum or Almarine spitfire, but I believe its actually an Apollo, which was also made in England in the early 70's, is VERY similar, but has some slight differences. Its hard to find info on these, this is about all I can find: http://www.oldspeedboats.co.uk/apollo/ I also figured out the engine is correct for an Apollo, a Rotax type 373. The only real bummer is, that rather than the 35hp the rotax in the Spitfire made, the type 373 only makes 26hp, lololols. I'm yet to pilot it, but I'm thinking it might be a bit slow with my fat ass in it. The last owner said with one person of around 80kg in it, it would do 35kmh. So maybe in the future I may have to look into a repower. It did come with two spare motors, so could try hot one up, but might be more trouble than it's worth. The unit is good for 45hp, but can be strengthened for more, but guess a single stage has its limits. Anyways, for now I'm not going to do anything major, just clean up and un-barry some items, and go on some adventures! Crazy effect paint, 368cc of pure grunt! I will clean up the wiring a bit, and possibly the exhaust if I keep this power plant, The last owner added a second exhaust outlet above the water line, to reduce the back pressure, apparently it starts off a lot better like this, Dual exhaust outlets, and tiny unit. The rubber around the edge of the hull is probably original, so is a bit perished and has shrunk a bit, hence cable ties, Will slap on some new switches, center the steering wheel, and possibly redo the reverse lever, as it a bit cunty to reach (its just hidden by the steering wheel in this pic) Pimping white vinyl with red stitching, Last owner just slapped some hoses out the side for the tell tail and bilge pump. I'll probably run the tell tail out the hull on the right hand side, so I can feel/see it. And the bilge will also probably go out the back of the hull somewhere. Also the windscreen has been repaired, so might look into making a new one. And then just chuck lots of shiny screws and bolts at it to make it pretty. RINNNGGGGGG DING DA DING DING DING DING DA DING DING DING. Regards, VG.

You'll be looking for jobs in the shed a lot more now, so surely you'll get the swap done in no time? This is all your fault. And J5s. And Julia's for not stopping me.

What a copy, puhuhuhu.

So i've purchased my first ever boat, and it's adorable! According to the guy I got it off, its a late 60's/early 70's mitchum marine spitfire. Its got a 9 foot long fiberglass hull, powered by a parallel twin rotax two stroke, passing a whopping 35hp through a single stage jet unit. It's fairly tidy for a 50 year old boat, but I intend to fix up and modify a few things. A few screen shots from TM of the ol gal, The spitfire wasn't produced for very long, (the company changed location, changed name, and went to a new model called a meteor which seems to be more common) and the majority were fitted with outboards, so they seem to be fairly rare as a jet. There's a bit of a following of them in Britain (they were made in Surrey & Norfolk) but apparently most were sold in Holland. More pics, info and sharns to come once I collect it. Regards, VG.

Is that the one Dud's ended up with?

Oh you

Yep, unless you want to double me?

I've started collecting and making parts for this POS, to convert the rear to independent suspension, upgrade the front to the braked hubs, and get long travel shocks all round. Bits for the spool/centre drive thing, new taper lock sprocket, front disc off a CB250, and a flex plate and starter from a MAZDA 3. Also a 30mm shaft and bearings for it to live on, I got some MX5 axles and hubs too. The axles are quite small and light, and have a flanged end, so perfect for this, The chunk of hollow bar is to make new hubs, as the MX5 hubs are too big to fit in the quad bike rims. So I machined up some hubs that use the MX5 bearings, and will make doofers to connect to the suspension arms. I also made some adapters to go from the MX5 4x100 pcd to Yamahas ATV 115x4 pcd. I found some I had started making (can't remember what for?) out of 6mm plate, so hopefully they are strong enough, I also got a few 16 and 20mm rod ends for the front end, as that's how the barracuda hubs attach, Still lots to do, but slowly chipping away at it.

@johnnyfive may also have a bed going spare both nights, as I won't be befouling them.

Guess I'm not doing it then, sweet.

If you deal with seal imports Hamilton, and get a guy called Shane, ask for someone else. Just trust me on this one. SPAM.

Excited about trying to keep up with the MX Post guys again.