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Ignition timing... RD400.. by dial gauge - I know its not a blinkin' ZED... but...

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Pigford
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#1 PostAuthor: Pigford » Wed Jun 28, 2006 7:19 pm

Just got an RD400C..... its got Newtronics (Pirhana) ignition... Tried to set timing by manual to 2.3mm BTDC, and she run good til 4/5000rpm, then power dropped off.. to retarded. Re-set to as was.. about 5/6mm BTDC and OK. Now the RD400 is supposed to be 2.3mm, and double checked dial gauge settings... spot on! What am i doing wrong???
2 strokes don't have advance curves do they???? Worried she may hole a piston, or 2!!!:confused:
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Padders
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#2 PostAuthor: Padders » Wed Jun 28, 2006 9:11 pm

An RD400 GSXR and Zed you will be catching Paul up soon. Hope you find the answer before she goes pop mate.
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Pigford
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#3 PostAuthor: Pigford » Sun Jul 02, 2006 7:26 pm

For anyone who's even slightly interested?????? Optical ignitions must NOT be set in bright sunlight!!!! The infra red sensors get fooled by the sunlight & mess up timing. Re set mine in the shade of the garage and shes running soopa doopa now!
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Padders
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#4 PostAuthor: Padders » Sun Jul 02, 2006 7:33 pm

Keep that left hand hovering over the clutch just in case she nips mate. I had a Beckett tuned 350lc that nipped on me whilst chasing a RD500lc a few years back. Left a tyre mark over a hundred yards long. **** myself big style but kept her upright more by luck then judgement.

Cheers Ian.
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