RD500 1GE Restoration

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rd84
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Re: RD500 1GE Restoration

#31 Post by rd84 » Mon Jul 23, 2018 9:49 pm

MK wrote:I'll take a bet on around 10HP hiding in PV and ignition setting.
The original ignition starts to back off strongly between 9 and 10 k. Using higher advance here will raise power between 9 and 11.5 k.
The original PV setting is complete crap as it's fully open much too early. Tuned setups with pipes usually react positive on starting rpm of 7 - 7.5k and fully open rpm around 10.5. Don't know exactly how Kennys pipes will react, but that should be in the ballpark.

Just one word on the Ignitech on the RD500: I had 2 bikes in my own hands that had trouble and I know of a few others with the same issues. It seems to be EMV related as the tach and spark go bunkers in the midrange.
In one case it was solved by relocating the lower HT coil from the left to the right engine side.

All Zeeltronics worked fine on the RD500.
Thanks for the info and warning Martin - I'll let the dyno guy know - I wonder if a steel shield around the Ignitech would help - perhaps some of the wiring need shielding as well ?

Cheers
Paul

MK
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Re: RD500 1GE Restoration

#32 Post by MK » Tue Jul 24, 2018 4:30 pm

My impression is more that the wiring is prone to work like an antenna to pick up disturbances and the internal filtering inside the Igni can't always cope with it.

Bringing the lower coil away from the pick-up wires helped, so the strategy should rather contain things like shielding the pick-up cable, bringing the Igni further away from the EMV polluted zone (inside fairing, under seat, ...).

Or simply buy a Zeeltronic.
Bye
Martin

rd84
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Re: RD500 1GE Restoration

#33 Post by rd84 » Wed Jul 25, 2018 9:14 pm

MK wrote:My impression is more that the wiring is prone to work like an antenna to pick up disturbances and the internal filtering inside the Igni can't always cope with it.

Bringing the lower coil away from the pick-up wires helped, so the strategy should rather contain things like shielding the pick-up cable, bringing the Igni further away from the EMV polluted zone (inside fairing, under seat, ...).

Or simply buy a Zeeltronic.
Thanks Martin,

Cheers
Paul

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