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Dt250a timing
- Jewelkutter
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Dt250a timing was created by Jewelkutter
I've read many posts on the forum regarding the procedure and I'm still struggling
I'm trying to set the timing , the manual is confusing , it says to rotate the engine until the points are fully open and check the gap, Does the points cam on the rotor have to be at a certain place to do this check of the points gap? Also the points are new (oem yamaha) do they have to be at a certain location on the pivot ? Maybe the slot on the points centered with the screwdriver slot on the stator plate? and then rotate the rotor until the points open and then check the gap? I made a top dead center tool out of an old spark plug and a test light with a 6v lightbulb, (i tried it out ,the light it gets dim and bright when i rotate the rotor) I set the gap looking through the slot to 0.35 mm, then rotated the rotor to get btdc location, then hooked up test light and it seems to get bright when I rotate the rotor to btdc location , is this backwards, as the light should get dim ? I checked for spark at the spark plug and I am getting spark, I just wasn't to be sure I'm doing this right that's why I'm here , am I missing something or doing something backwards?
as always any help greatly appreciated
john
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- Jewelkutter
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- RT325
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Replied by RT325 on topic Dt250a timing
Then set the piston at 3.2mm btdc with your gauge.
Then set them to be touching each other & ready to part, [& the damn things move as the screw is tightened so treble check by rocking it over that point.
Alternatively there must be a tab as part of the end of one coil to use & line up with a notch in the flywheel window.
Providing the back plate is on original screw marks the tab should be pretty close for timing just to set it the easy way if no dial gauge to use.
Points touching [just] when tab & notch line up.
See what other say, but just trying to un-complicate it for now.
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- RT325
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