TOPIC:

Hi, just wondering if anyone has a fan switch for the old 1979 A1 model, I put in a "new" one from the later Voyager as the original ones electrical tab had broken off, but it seems to me that the later one makes the bike run hotter before the fan cuts in, i'd rather keep her cooler, especially down here in Australia, anyway i'm going to see if I can find the old one and see if I might be able to fiddle with it to make a connection. By the way does anyone know what temp the original cuts in at, and what temp the later model one works at ??, seems to me it's a big difference, at present my fan doesn't cut in till the needle is almost at the 3/4 temp mark. I will pay for a good one or swap for some other parts I have, just need one for the earlier model, cheers and thanks

The old FAQ's always mentioned that the later ones from the ZN models cut in earlier and those are available from the German website. Pretty much unavailable anywhere else unless someone's feeling curious and wants to try ones from other bikes for a good comparison .

Would be more effective if it was wired to your ignition (maybe the headlight?) so it cuts on whenever the bike is running. The thermostat should regulate the temp after that so it should never get too cold or hot.

That reminds me I had lingering questions about the thermostat from the old FAQ lol. Now that a good forum is up I should probably address them

The early A1 & A2 Fan Switches had a mind of their own & did cut in too late causing a lot of overheating problems.
The Fuel Inj models ZG & ZN are much better & cut in at 85 degs.
Problem is they are hard to find & dont last long either & they are not a common part to other models.
I have removed the alloy inlet that the switch screws into & drilled the hole out to 13mm as there is a lot of metal around the original hole then re-tapped it to 14mm so I can use a common car/bike type switch which you can buy on EBAY for peanuts. See EBAY item number below.

400508573696

I would not go above an 85 deg cut in switch if I were you.

Pete

+1 to this! Modifying to suit generic parts would be the most reliable/cost efficient way to do it.

Might try this mod myself if I can manage to get the tools for it

Just remove the Alloy inlet from bike & take to any good machine shop with the new switch & ask them to drill out & tap the hole to suit switch.
It will not take long or cost much...........that way no tools & you can replace the switch in future without need for removing it from the bike.
Pete

Good idea lol. Hadn't thought of using a machine shop I've gotten used to the idea of doing everything myself. Better off that I have it done right the first time I'd hate to have to replace the alloy part if I make a mistake.