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The thing I like about SU carbs is that you can tinker with them.
The thing I don't like about SU carbs is that you have to tinker
with them.
I replaced the stromburgs on my 164 with a pair of rebuilt SU HS6
carbs. The replacement went kind of okay (well, I'm an idiot so
that was working against me) and the car pretty much runs okay
now except for a couple problems.
Choke -- the car currently has only one cable that goes from the
choke to the carbs, and I need two. I can fix that but it will
take a visit to a bicycle store. No big deal for now, I just
tie the choke levers up and start the car with the hood open.
Ugly but it gets me to the bicycle store...
Another problem is that I'm having a hard time adjusting the
mixture. If I remember correctly (it's been months since I did
anything with the SUs) if you raise the piston a little bit and
the idle speeds up, the mixture is lean, and if it slows down
the mixture is rich. Also the idle seems kind of high but if
I lower it beyond a subtle point the car just dies every time.
As it is, it always makes the idle lower, but if I adjust the
mixture past a certain point it just dies.
Which leads me to the last problem -- the car runs okay except
sometimes at mid throttle under load (hills) the car will start
to buck. I suspect that I don't have the carbs balanced quite
right (mixture wise) but I can't be sure since I just did it by
eyeball since I can't trust the other factoid I seem to remember
about SUs. The unisyn tells me they have the same idle, but
big deal -- I'm not using the idle.
Oh, this car has a coil with a resistor in front of it and it
says that it wants 9v. My 144 does not have this sort of coil.
Should I try to find a normal coil for a 140 / 160 in a junk
yard and replace this one?
Suggestions?
chris
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