Motorcycle·

CB500T condenser 30250-369-004 will not take a fork plug

This 1976 CB500T has two condenser cans and bullet connectors. The first replacement had a green wire and a two-prong fork, so it never met the harness. Bolting a new can down did not restore the dead plug wire.

Match the bullet, not the title of the kit. Do not fit a condenser with a fork plug and a green lead. This 1976 CB500T has two condenser cans, one above each coil. The points on the bike had been cleaned and were sparking. The right plug wire still showed nothing. A new condenser was tried while it was not bolted to the bracket, then bolted down so the case had a ground. The right plug wire stayed dead. The left coil was only partly mounted during that test, so the test was never a clean one. It was clean enough to stop blaming the can.

The condenser this harness will accept

What you are holdingFitDo not
Bullet on the lead, number 30250-369-004Meets the harnessAssume one can serves both cylinders
Green wire, two-prong forkDoes not plug inCut the fork off and call the green lead a signal
Title lists 30250-369-004 and 30280-292-672The 369 number is the CB500T. The 292 number is a CB450 partTrust a kit that claims both

The silver cylinder above the coils is the condenser. It got called a compressor once from a photo. It is a can, a lead, and a ground through the bracket. There is no Amazon listing on this page. The kit that showed up for this bike used the right Honda number in the title and the wrong connector in the photo. That is the failure mode. Buy the bullet version from a Honda parts counter or a vintage specialist who shows the connector, two of them if you are replacing the pair.

Spark at the points only proves the points are opening and that some energy is reaching them. It does not prove the coil primary, the plug cap, or the condenser. The part that matched the dead side on this bike was the coil, which was pushing white foam out of the case. That replacement is the coil guide. If the points are quiet too, the feed is upstream, which on this bike was no voltage on the black/white wire after the lamps were back.

Frequently asked questions

What condenser fits a 1976 Honda CB500T?
Honda 30250-369-004, one per side, with the bullet connector the harness already uses. A replacement with a green wire and a two-prong fork does not meet those bullets. Green is a ground color on these Hondas, so that lead is a wiring trap even if you cut the plug off.
Will a new condenser fix spark at the points and none at the plug?
Not by itself. On this bike the points had been cleaned and were sparking, the right plug wire was dead, and a new condenser changed nothing once it was bolted down. The coil on that side was the part pushing white crust out of its case.
Can I test the condenser with it unbolted?
You can learn that the connector does not fit. You cannot condemn the ignition while the can is hanging, because the case has to be grounded. Bolting it down is required, and on this bike it still was not the cure.

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