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I'd suspect the crankcase seals, they are a common failure on engines that won't start that people don't check.
Does your RS50 have a carburettor, or is it the fuel injected version? If you've got the wrong loom, you may have lost the electrical feed to the...
Where in Mancland are you? I'm near the airport.
Check for an aftermarket exhaust. The standard one will have a restriction washer welded into the throat of the exhaust where it meets the...
The workshop manual is available here:-...
The Speedfight 3 and V-Click models are Chinese built these days, so I don't think the quality will hold up as much as the French built bikes (I...
Yes, they do still sell them and the missus marks out every thing she wants to watch in it every week. That's why I watch stuff on the t'Interweb.
The paint job on my Speedtrek was done with rattle cans and looks amazing. Any paint job is 90% preparation and you need to rub down between coats...
The bloody oil light is flashing on the Speedtrek. I've researched it and although the bike is running OK, it hints that the Dellorto electric oil...
Very reminiscent of the paratrooper's bikes that were dropped in WW2.
I believe the clocks are made by Koso. Search for Koso Clocks on eBay and you should find them. Edit: I think these are the clocks you are...
That cylinder bore looks OK to me, I've seen worse that still run OK. The slight clearance you mention with the piston gets taken up, as the...
Isn't that bike an RXS100? I didn't think that Yamaha made an RS100. Can we have some finished pics of the Express please?
The coil gets a signal from the CDI unit and as such, you won't get an AC voltage. You may get a DC pulse being fed to the coil wires from the CDI...
The mixture is richer when the choke is on and weakens off as the choke turns off. Your fuel mix could be just about right at cold start, but goes...
I see what you did there... :D
I still think you will have warped the head. The bolts on most scooter cylinder heads should be tightened diagonally and in stages, to relieve...
How about some photos of your machine?
Must have been compression or a faulty stator then. Were the old barrel and piston scored at all?
Did you use a torque wrench to tighten the head bolts evenly? If you didn't, you could have just warped the head.
