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Aug 16, 2015 20:58:52 GMT
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Just picked up this beast:  It runs and stops just about and is great fun. Plans are: Replace both tyres Find an idle jet for the carb - does anyone know where I might locate one? Sort out various cables Sort lights - possibly upgrade to LED ones Does anyone know where the frame number is? I'll put more pictures up in the morning when the light is better |
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Last Edit: Aug 16, 2015 21:00:12 GMT by rupertw
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Aug 16, 2015 21:24:36 GMT
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I had one 40 years ago  It's possible to start engine by putting a 3/8" drive speed bar, extension in drill etc via the square bolt on the end of the flywheel. If careful you can use rear brake to stop the pulley behind the left pedal and then twist the unlocking knob. That will allow you to rev engine (for testing) without the rear wheel turning. You have to be fast to avoid getting fingers whacked so maybe best using a piece of wood. If you remove the cylinder head and discard the gasket then you can lap the head and barrel together with fine grinding paste to raise the compression ratio slightly. I've got the pedal cycle version - a RSW16. I found you can get repo Chopper front tyres from eBay which fit. There is no voltage regulator so light brightness depends on engine revs. This means LED lights might not be suitable unless you run them from a separate battery. Not sure about frame number. Found it on my RSW16 but can't remember where ! Look on rear wheel frame lugs or tip bike on it's side and check underneath the bottom of the seat post behind engine. |
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ckerr
Part of things
Posts: 257 
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Aug 17, 2015 10:55:14 GMT
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Crazy how much it looks like a shopper with an engine, love it
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Aug 17, 2015 17:16:39 GMT
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composimmonite - Thanks for the info! I've found the frame and engine number so I can send of for a V5 now. Another picture of the bike:  The offending tyre:  Halfords have some tyres which I think will fit fine, I'm not convinced they'll be technically legal for road use, but they'll do for now. This might be a long shot, but does anyone know exactly what type of carb this is:  It is a Gurtner, but seems slightly different to the normal AR2 type, although very similar. The whitey hole above brass nut at the bottom should have something in it, but I'm not sure if it's supposed to be just a screw or a jet |
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Aug 17, 2015 20:00:54 GMT
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Mopeds have a different law regarding tyres www.gov.uk/vehicle-maintenance-safety-security/vehicle-maintenanceMotorcycles, large vehicles and passenger-carrying vehicles MUST have a tread depth of at least 1 mm across three-quarters of the breadth of the tread and in a continuous band around the entire circumference. Mopeds should have visible tread. Be aware that some vehicle defects can attract penalty points My friends dad had an Ariel 3 sporting kids mountain bike tyres on all the corners, pretty funny really, - Id have at least picked road type tyres, |
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Last Edit: Aug 17, 2015 21:15:55 GMT by fuldatramp
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Aug 17, 2015 20:20:48 GMT
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another similar looking machine from the same era is the Clark Scamp , had this one a few years back  |
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Aug 18, 2015 12:12:08 GMT
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Moped Army might be able to help you.
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eBay Rare
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jonw
Part of things
Can open a Mouse with a File
Posts: 768
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Aug 24, 2015 12:07:59 GMT
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I'd say the carb is an Ar1 or AR10.
Great ped and good luck getting it on the road.
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Suzuki SV650R The good
Triumph T20 The Bad
BMW G650GS The Ugly
Matchless G12CSR The Smokey
Toyota Hybrid One pint or Two?
Ingredients of this post
Spam
Drunken Rambling of author
Bad spelling
Drunken ramblings of inner voices
Occasional pointless comments
Vile beef trimming they won't even use in stock cubes
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Aug 24, 2015 17:54:10 GMT
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I've found some suitable tyres online, although I've only ordered one for now as I'm worried that the tread will look too modern, but for £10 I can't really go wrong.
I'm missing the fuel tap, which is a slightly odd push on type which are now impossible to find. I can easily tap out the fuel tank opening to 3/8" so that I can use a conventional threaded fuel tap, but I'm struggling to find a tap with that size thread.
I've found a screw for the carb which helps it slightly but it's still not quite right at all. Since the airbox is missing as well I'm tempted to buy a brand new carb assembly which would save a lot of bother and give me slightly better performance, although it's not particularly cheap at £50
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Aug 24, 2015 19:19:51 GMT
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Have a look at lawnmower petrol taps - some of those are push type.
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Aug 24, 2015 20:59:07 GMT
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Thanks for that, I've had a look for some, but can't really find anything suitable. I think I'll tap out the opening and fit a reducing adaptor and then just fit a normal fuel tap
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Sept 7, 2015 18:00:28 GMT
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Made some progress on this New Carb:  I ended up taking the engine out to get it to fit properly. There are only two bolts holding the engine in but it's still a right fiddle:  I found a replacement tyre, it's of quite a light construction so may not be suitable for road use but I'll see how it goes around the farm.  And all fitted:  My plan is to tap out the tank, fit a reducing bush and then use a conventional fuel tap  |
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gazz81
Part of things
Posts: 842
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Sept 9, 2015 21:10:22 GMT
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Seeing this reminds me Ive got a 1961 NSU Quickly project in the garage that I must get on with! Although its going to be far from standard. Take one nsu frame  and some slightly more modern components!  and you get this!  Rear end has been altered since that last pic so the wheel is actually fitted. Going to be fitting it with a pitbike engine eventually. |
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Last Edit: Sept 9, 2015 21:11:43 GMT by gazz81
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gazz81
Part of things
Posts: 842
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Sept 9, 2015 21:11:53 GMT
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This is what it would have looked like!  |
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Sept 10, 2015 9:02:46 GMT
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I like that tyre, looks like a period item suits it down to the ground, I've got my puch ms50d in the garage, I could do with getting it out and giving it a revamp at some point, it's tyres are the same size as the NSU, I wanted white walls but wasn't prepared to pay for them, so I had the wheels painted instead  |
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Last Edit: Sept 10, 2015 9:03:33 GMT by fuldatramp
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Sept 10, 2015 17:51:45 GMT
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Gazz81 - I'm not sure how much NSU is going to be left by the time you've finished! I have a very incomplete BSA Bantam which I am considering putting modern bits on, so I'd be interested to see how your NSU turns out
Fuldatramp - Are the Puch mopeds 2-stroke?
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Sept 10, 2015 20:16:14 GMT
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Yeah, I think all the puch mopeds were 2 stroke, this ms50d has a 3speed gearbox too, although I'm not keen on the peddle backward brake for the rear wheel! It's been off the road since 2009 but used to be pretty tidy  I also have a 1975 Honda pf50, That's a four stroke engine single speed, but it is a little worse for wear!  |
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Sept 10, 2015 21:02:29 GMT
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First bike I rode was a Puch like that. Belonged to a friend who had it from almost new in 1973 as a get to work machine at 16. His was green and cream with no legshields.
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Sept 11, 2015 7:25:14 GMT
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Yeah green and cream was a popular colour, mine was originally green but I had it powder coated  The leg shields were a optional extra, you don't see many sets around now, but there still seems to be plenty of bikes (MS/MV) I had an M3 sport for a while that was virtually the same but had a bigger petrol tank, a foot brake and gear-lever by my feet, Most of these seem to be 3 speeds but some are two, this one is 1969, and the m3 I had was 1973 but I think they made these from the late 50's/early 60's but we just didn't get them over here until the late 60's, I think the post office Had some of these too for the telegrams department, they painted them red so they're pretty obvious I'll get mine out and sort it out at some point! |
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Last Edit: Sept 11, 2015 7:31:47 GMT by fuldatramp
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