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SteveD wrote:To further that, does anyone know what the oem measured straw lengths are?

I wrote something down that someone had posted. His 82 R100RT (6.3g) had 83 and 25mm straws. He also indicated that he had 1.25gal reserve.

Kurt in S.A.

Thanks Kurt. That equates to a 4.7 litre reserve.
I'll measure and compare the Germa and Karcoma straws when I convert them in a couple of weeks.
Cheers

Steve

The staws from my 78 RS are 90 and 30mm respectively (see below)


I think I have already talked to you about my Karcoma modidification with the brass (model aero fuel) pipes. They work really well.


With filter


Steve from Dubbo

Excellent pix.

I filled the tank yesterday with a known 1.9 litres (left reserve volume)in it, and I only managed to squeeze 21 litres in.

Capacity is stated as 24 litres, but the filler throat design has robbed it of at least 1 litre. Functional capacity is more like 23 litres.

So, for me fwiw, I would now expect to reach reserve at 19.2 litres, and have 3.8 litres total reserve left.

FWIW.