Join Date: Jun 2009
Location: Petersburg, Va, USA
How are they not good? Do they heat at all?
A common problem is the throttle side where the wires fatigue and break due to movement.
They are just a heating wire wrapped around the bars under the grip and on the throttle tube. there is not another component other than the wiring, connectors and switch.
if it's heating at all, you could check all the connections to make sure they are not corroded in some way and disassemble the switch (carefully in a plastic bag to avoid losing parts) and give the contacts a good clean.
If one or the other is not heating, I'd start looking at the wiring.
'87 K100LT "Her Teutonic Majesty"
'79 XS750 "The Triple"
'72 A65T "The T-Bolt"
'68 B25 "The Blue Bike"