@irongamer727 The stock Pilot Jet is (25) , My advice is to try (27.5) to support your mods.
Also dont forget about Needle height! Very important aswell
@desmodov 'Water cut 7mm Stainless steel, I drew the pivots at 15.5mm to compensate for the distortion water cutting creates cutting through, essentially the water jet blasts through creating a slight taper on exit, it's like firing a cone shape rather than a straight beam.'
They are 16mm Bolts, I then finished the surface, cutting with a 16mm Drill bit removing the 0.5mm interference so that you end up with the correct concentric diameter fit for bolt and Drop link.
If you CNC, or Laser Cut, you will not need to do this due the correct tolerance with thicker material, ie over 6mm
@NINJA Your mad, 1mm clearance is not acceptable for concentric fits under load here??
LOL. Depends what you do with the engine, racing a YZ250 45+hp.. Dont use a cheap Con Rod when you rebuild it! This happened to a mate's YZ250 at a race weekend.
Buy good, and look after it and it wont eat itself.
@declan I'm building a SM YZ125 AF, I'll let you know how that goes.
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