HELP! how to wire symtec heated grip elements

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J

jollygreen

Joined
Nov 1, 2010
Messages
3
2010 FE 390 EU version.
Help guys! I've just fitted symtec heated grip elements, everything went well until I tried to wire the main power. I found various likely feed wires, which were live only when motor running and all checked by multi-meter. Connected heated grip switch power wire, to these feeds and started the engine only to find the live feed wires I had identified are now dead, but as soon as I take the grip switch power wire off, the feed wire becomes live again! Any idea what I am doing wrong?
Thanks

PS any wiring diagram available for the 2010 models?
 
If the voltage drops out when you hook up the heaters, then that circuit is not able to supply the load demanded.
 
No, if you connect a wire that isn't connected to anything (switch off) then there should be no change.

Obviously you don't have what you think you have. Make yourself a diagram.
 
So where is the best place to take a feed for heated grips from, on the new bikes?
 
If you need to wire the Heated grips so they work when the engine is both, running and not running do it this way:
From the "B" Terminal on the Starter Relay wire that to a Fuse Holder.
Wire the heated grips Switch to the other side of the Fuse Holder.


If you need to wire the Heated grips so they only work when the engine is running I would do it this way:
Find the Blue/Yellow Wire in the loom from the Fuse Box that heads up to the front of the bike. Tap into that wire, and wire it to the heated grips Switch. The Blue/Yellow Wire is from Fuse 4 in the Fuse Box and supplies power to:
Speedo
Horn
Brake Light
Turn Signal
Fan
The Blue/Yellow wire from Fuse 4 is only alive when the engine is running. Fuse 4 gets it’s power via the Power Relay, that is why it is only alive when the engine is running.

How many Amps do these Heated Grips consume? Because Fuse 4 is only 10Amps and needs to be able to supply current to those things mentioned above. I can describe an alternate way to wire them via a separate Fuse and relay too if they consume a lot of Amps. Could even draw a diagram if you need.
 
nick790 said:
I'm not sure how many amps they draw, in the instructions it says link them into the lights supply, so i would assume it's not that much. I need to do some maths to see if I will get problems with all these switched on!!

These are the ones I'm getting

https://www.enduroeng.com/ProductDetail ... 1177528227
Click to expand...

I fitted the fan kit recently, and that came with it's own fuse holder? is it fused twice? Could piggy back of of that supply also I guess?
 
nick790 said:
in the instructions it says link them into the lights supply, so i would assume it's not that much. I need to do some maths to see if I will get problems with all these switched on!!
Click to expand...
Fuse 3 is the Lights. It is the Black/Blue Wire leaving the Fuse Box and heading towards the front of the bike. I would not use that incase something goes wrong with your heated grips and blows the lights Fuse while you are riding at night. I suggested Fuse 4 as it runs the Fan and I am guessing the Fan will not be on much if your Heated Grips are on.


nick790 said:
I fitted the fan kit recently, and that came with it's own fuse holder? is it fused twice?
Click to expand...
The Fan Kit is Fused 3 times.
First - the 20Amp Fuse in the Starter Relay.
Second - the 10Amp Fuse in the Fuse Box (Fuse 4).
Third - the Fuse right next to the Fan.

nick790 said:
I fitted the fan kit recently. Could piggy back of of that supply also I guess?
Click to expand...
That is the supply I already suggested to piggy back off. Did you miss that point? :roll:
Use the Blue/Yellow wire to the Fan Circuit. The Fan Circuit Blue/Yellow wire goes to a Diode first. Connect to the Blue/Yellow wire on the Diode.

FAN.jpg
 

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