radiator fan to ec 250 2011

[dimtsam]

Hello everyone

Im trying to put a radiator fan to my bike ( ec 250 2011 without battery).
I got a rectifier from an other bike, but I got no fan running.
i found the yellow cable from the stator that is used for the lights. I found the white cable from the stator which is not connected somewhere. I connect both these wires to the rectifier but I got no dc.
Should i connect only the white cable to the rectifier?
Is the trailtech rectifier something special or any rectifier should do the job?
I ve done a lot of search but i think i miss something

Thanks for your time

 

[swazi_matt]

can't help you with wiring, but can tell you that the GG tials fan kit is plug-and-play on the 2010/11

Pretty sure there are some other posts on here with details of the rectifier and fan used in the kit

 

[Neil E.]

one side of rectifier input to ground
other side of rectifier input to stator white AC

DC output of rectifier to fan (through toggle switch or thermoswitch)
(do not ground the rectifier output)

 

[dimtsam]

one side of rectifier input to ground
other side of rectifier input to stator white AC

DC output of rectifier to fan (through toggle switch or thermoswitch)
(do not ground the rectifier output)

Is this connection the standard way for all the rectifiers? Is there something different to the one that Trailtech sells?

 

[Neil E.]

The issue is a split system, part of the bike is AC, part of the bike is DC. With a full wave rectifier like the Trailtech unit, the input and output cannot share a ground.

Note that the GG stator is already grounded so the rectifier output must be kept floating (isolated from ground). The easy way is to have the rectifier DC output only connected to your fan circuit.

For a DC system that is grounded, the GG stator needs to have the stator wiring modified so that one side of the windings is disconnected from ground. This makes the stator output floating (isolated from ground). It is less work to float (isolate) the DC output thus leaving the stator connections stock.

If your really want a decent electrical output, buy a 3 phase stator and matching rectifier. This will give you high wattage and a grounded DC output.

 

[dimtsam]

Finally I made it work. I left the stock ground AC wire as it is and used other wire from the rectifier for DC ground.
Thanks a lot for your help