adrian
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| posted on 4/6/06 at 02:23 PM |
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r1 fan 02/03 engine
im building an r1 mini, ive read that people wire the standard bike fan fan to the ecu is it ok to use a bigger fan in the same system, or should i
use a separate relay and fan switch in rad? hope this makes sense!
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ChrisGamlin
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| posted on 4/6/06 at 03:04 PM |
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I can't remember exactly how its wired but Im pretty sure the ECU switches a relay anyway as I can't imagine it puts 10-15A through the
ECU wiring!. If thats the case then as long as you're not way over the rating of the other fan, Id think you'll be OK.
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Deckman001
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| posted on 4/6/06 at 03:08 PM |
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I'd go the relay route, as the original wires aren't that big 
Jason
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adrian
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| posted on 4/6/06 at 03:23 PM |
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do u mean i should run a separate relay from bike loom? wasnt sure if it would cause a fault in ecu and reduce engine revs to 7000 if i didint use
bike loom
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progers
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| posted on 4/6/06 at 06:30 PM |
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Normally the ECU controls a relay to switch the fan on. You can use a different fan as long as the power rating doesn't exceed that of the bike
relay.
In my case I chose to have manual control (via switch on the dash) of the fan using the original bike relay and fan/radiator. This does not cause any
error codes or restrict the ECU/engine in any way
- Paul
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adrian
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| posted on 4/6/06 at 09:16 PM |
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thanks what fan you using?
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progers
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| posted on 6/6/06 at 07:28 AM |
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I used the original bike radiator and fan - Mr Yamaha had a good idea how to cool their own engines :-)
- Paul
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