cb550K3 Starter Relay Solenoid - take apart??

[nairb]

The old K3 has sat for a couple of months and now gives the "click" from the starter relay.  Battery is fully charged.  Sometimes it will work, but not always.

So..... I was going to take the Solenoid off and take it apart and smear some grease on the sticking bits.  I have done this on the gt750, or was it the Yamaha.  Anyway, one of the other bikes and it fixed the problem.

But having taken the Solenoid off the K3, I am not sure I should remove the 2 screws.  It looks like a factory sealed unit.

Are these things serviceable?.  I should check the voltage from the starter switch(handlebar) first, I guess to make sure at least 12v is getting thru.
Ta
Nairb

[Bryanj]

Honda say not but with care yes they are, you have nothing to loose by trying if it stays knackered you still need a new one!

[nairb]

Strange things.............. if I put the engine kill switch to OFF, the solenoid works.  With the switch to RUN it does not work.
So I start it in the OFF position and then with the start button still pressed turn the switch to ON and the engine starts.
Why's that then..... anyway I managed the first 20 miles of the year in the frosty but sunny conditions.  Another little niggle to fix at some time.

[Sesman]

I’d check to make sure the switch cluster male and female connectors are in the correct locations.

[McCabe-Thiele (Ted)]

Strange things.............. if I put the engine kill switch to OFF, the solenoid works.  With the switch to RUN it does not work.
So I start it in the OFF position and then with the start button still pressed turn the switch to ON and the engine starts.
Why's that then..... anyway I managed the first 20 miles of the year in the frosty but sunny conditions.  Another little niggle to fix at some time.

I might be off kilter here, that sounds suspicously like an earthing problem somewhere, it's amazing how wiring can back feed to make a circuit unexpectedly.

Used to be common seeing vehicles at night with the rear side lights on that would go out when braking and illuminate an indicator instead.

[Sesman]

Diode?