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Makotosun

Help Needed – Timing & Exhaust (Yamaha DT100X 1982)

  • Ark1moto.pk
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I’m currently running a DT100 engine with an RT100 jug and reed, DT100 head, and I need support with point timing. I’ve sealed everything correctly, fuel is reaching the engine, and compression is good—but the bike still refuses to start. I’m confident the issue is timing-related..Where I Need HelpBecause I’m running an RT100 jug (different port layout and airflow characteristics), I’m unsure if I should stay with DT100’s stock timing or if anyone has experience with:
  • Slightly retarding or advancing timing to match an RT jug on a DT bottom end
  • Confirming the correct point gap (I don't have a Guage)
Any guidance, reference images, or step-by-step confirmation would be highly appreciated. This is my first build, and I’d like to get this right.
?????? ??????
Ride. Restore. Repeat
12 Dec 2025 08:54 #1

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