dadof2 Posted June 4, 2016 Report Share Posted June 4, 2016 http://www.ebay.co.uk/itm/yamaha-ty175-250-source-coil-461-81312-10-genuine-new-old-stock-/262246948722 Quote Link to comment Share on other sites More sharing options...
2stroke4stroke Posted June 4, 2016 Report Share Posted June 4, 2016 Based on my experience I would not suggest NOS. Whilst it hasn't been used and heated/cooled etc it's still forty years old and might possibly be subject to deterioration (or not), who knows how it has been stored these decades. A good rewind will be guaranteed to work and keep working. Quote Link to comment Share on other sites More sharing options...
embrelleur Posted June 4, 2016 Author Report Share Posted June 4, 2016 I updated my location, I'm from Quebec, Canada. Before trying to source or rewind a source coil, I will try with the points, condenser and ignition coil I ordered and do a hard ground. I checked my source coil with an ohm meter and it seemed within specs. But such low impedance are hard to measure with a cheap multimeter. If the source coil was to be faulty I would try to have it rewound by an electric motor shop I think Quote Link to comment Share on other sites More sharing options...
guy53 Posted June 5, 2016 Report Share Posted June 5, 2016 I haven't seen a 175 coil, does anybody know if they are different from the 250? Guy Quote Link to comment Share on other sites More sharing options...
tony283 Posted June 5, 2016 Report Share Posted June 5, 2016 Lots of good pointers here and all valid. Check the condition of the wire from the points which can often become hard and brittle and will need replacing if this is the case. Sometimes you can purchase new OEM points which come with a sort of "Teflon" coating which NEEDS to be file off! Tony Quote Link to comment Share on other sites More sharing options...
embrelleur Posted June 11, 2016 Author Report Share Posted June 11, 2016 it is now running like a charm. apart for a fair bit of piston slap and the clutch that was jammed. So point and condenser fixed the issue, now you can hear the spark Quote Link to comment Share on other sites More sharing options...
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