Dear SOLers,
I have a '70 TR6 w/ ~140K miles, orig. engine, transmission & Z-S carbs.
After doing an engine tune-up (Platinum plugs, points & condenser, timing
& idle), I tried fooling around w/ the mixture (air/fuel) using the
special allen-wrench-in-a-barrel tool. Bad move. I think I probably
unscrewed the metering needle or something so that she runs with no high-
end power at all -- embarrassed to be overtaken by lunch trucks & beat up
Vegas on the highway doing 50 with the throttle petal floored. The mpg
drops to 1/2 of what I used to get (~20/2 = 10!).
So, I've ordered the color-tune kit, unisyn tool, a pair of grose-jets
and a pair of Z-S carb rebuilding kit (diagphram, o-rings & gaskets galore)
and plan to rebuild the Z-S & make them good once & for all this weekend.
In fact, recent lurking seems to have more solers preferring grose-jets
over (stock) needle on Z-S. Is it true?
>From the archive, I've seen the su_tuning file helping novice tuning
(& rebuilding?) SU carbs. Is there an equivalent file for Z-S carbs?
If not, I am wondering if some Z-S expert can give some pointers? BTW,
I have the Haynes Z-S manual & the Bentley workshop manual but more
help is appreciated in my 1st attempt at this "French word which means
Leave-it-alone," quoting another soler's wisdom. Thanks in advance.
Regards,
Fred Ki
Zycad Corp., GateField Division
47100 Bayside Parkway
Fremont, CA 94538-9942
Telephone: (510) 623-4466; email: ki@zycad.com
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