As an owner of a 1973.5T with the first CIS, at the beginning I had to replace several components only because of wear, but they were readily available even in aftermarket versions. The 73.5T/CIS is the only system that does not use the thermotime switch. Rather the cold-start hand throttle is used, which to me is remeniscent of the old choke pull switches on my earlier Triumphs. So when starting the 73.5T your pulling up on the hand throttle and find your running around for awhile with a fairly higher idle waiting for the warm-up regulator to do its thing. Its really a kick!!
Another unique feature about the 73.5T CIS is that the fuel injectors are set into the cylinder heads not the intake manifolds like later models. They are a bugger to get out!
The 1973.5T/CIS 2.4L is a great power source. They are not known for overheating, are excellent in day to day stop and go traffic and have impressive pulling power. For me the CIS has it all over the MFI, but then the 73.5T I believe did not come with MFI. The last of the longhoods in good condition are commanding good money.
Bob
73.5T Sepia of Course
