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*Disclaimer This mod is not practical for many riders who live in a warm or hot climate for obvious reasons.
According to Wiki, where I live the average temperature high ranges from 18.7 °C (65.7 °F) in January to 9.5 °C (49.1 °F) in July. And that's the highs!
So for this reason, and the fact that I dont ride in built up city traffic with long delays at lights idling etc, my fan never kicks in. So on my last two bikes I removed the fan as what is the point in transporting around a redundant part that weights 3/4 of a Kilogram? None IMO.
I do re-fit the fan before on selling the bike tho!
So today I did the same to the Ninja, it takes about 15 minutes (once your fairings are off) and is very straightforward. Here's a how-to for those interested:
1. Remove both side fairings.
2. Loosen the two bolts that hold the coolant reservoir onto the frame by about 15mm. This will allow the radiator to slide sideways and off the top mount so that it can hinge forwards allowing access to the fan.
Loosen the lower mount bolt on the RH side by the same amount.
Remove the top radiator hose on the LH side and tie up with a cable tie so that coolant wont drip out. A little coolant will run out of the radiator so have a catch pan underneath it.
Slide the radiator to the right so that the top rubber mount slides off its locating pin.
Disconnect the electrical connection and cable tie it up out the way with some electrical tape over the end of the plug to keep crud out in future.
The radiator can now pivot forward away from the engine.
Undo the two lower mount bolts for the fan and plastic surround shroud. They look like this:
Undo the two top mount bolts
Remove the fan and shroud assembly.
Reverse the above procedure, check your coolant level is still Ok and run engine up with the radiator cap cracked open to allow any trapped air to escape.
According to Wiki, where I live the average temperature high ranges from 18.7 °C (65.7 °F) in January to 9.5 °C (49.1 °F) in July. And that's the highs!
So for this reason, and the fact that I dont ride in built up city traffic with long delays at lights idling etc, my fan never kicks in. So on my last two bikes I removed the fan as what is the point in transporting around a redundant part that weights 3/4 of a Kilogram? None IMO.
I do re-fit the fan before on selling the bike tho!
So today I did the same to the Ninja, it takes about 15 minutes (once your fairings are off) and is very straightforward. Here's a how-to for those interested:
1. Remove both side fairings.
2. Loosen the two bolts that hold the coolant reservoir onto the frame by about 15mm. This will allow the radiator to slide sideways and off the top mount so that it can hinge forwards allowing access to the fan.

Loosen the lower mount bolt on the RH side by the same amount.

Remove the top radiator hose on the LH side and tie up with a cable tie so that coolant wont drip out. A little coolant will run out of the radiator so have a catch pan underneath it.

Slide the radiator to the right so that the top rubber mount slides off its locating pin.

Disconnect the electrical connection and cable tie it up out the way with some electrical tape over the end of the plug to keep crud out in future.

The radiator can now pivot forward away from the engine.

Undo the two lower mount bolts for the fan and plastic surround shroud. They look like this:

Undo the two top mount bolts

Remove the fan and shroud assembly.

Reverse the above procedure, check your coolant level is still Ok and run engine up with the radiator cap cracked open to allow any trapped air to escape.
