Automatic fan install
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Thread: Automatic fan install

  1. #1
    Senior Member sangheraent's Avatar
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    Automatic fan install

    After years of dealing with my bike overheating I installed a fan on my bike. It turns on automatically at 190-200 with a sensor in the radiator and turns off at 180. I can change the sensor to adjust the temps up or down if it becomes a problem.

    My bike only overheats when I am holding it basically full throttle in the tight steep trails at the dunes, I don’t have a problem in the fast open areas but I like to hold it full out a lot so this had to be done.

    acecarlos and Big_Mike like this.

  2. #2
    Senior Member acecarlos's Avatar
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    Good deal, nice job...BDT has done similar installations of BB engines for Duners, works good.

    Carlos

  3. #3
    Member ct350trx's Avatar
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    Did you use a trail tech kit?

    https://www.trailtech.net/732-fn13

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  5. #4
    Senior Member acecarlos's Avatar
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    Quote Originally Posted by ct350trx View Post
    Did you use a trail tech kit?

    https://www.trailtech.net/732-fn13
    No...we put everything together at BDT. However; the TrailTech unit looks like a good Option...!

    Carlos
    Last edited by acecarlos; 03-16-2019 at 01:43 PM.

  6. #5
    Member ct350trx's Avatar
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    Quote Originally Posted by acecarlos View Post
    No...we put everything together at BDT. However; the TrailTech unit looks like a good Option...!

    Carlos
    What fan do you use Carlos?

  7. #6
    Senior Member acecarlos's Avatar
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    Discarded Honda fans, HP1 from 450R's. Local 450R desert racers switch the HB1 for aftermarket High Performance fans, get them dirt cheap, and they have worked fine on the TRX250R.

    Carlos

  8. #7
    Senior Member sangheraent's Avatar
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    Quote Originally Posted by ct350trx View Post
    Did you use a trail tech kit?

    https://www.trailtech.net/732-fn13
    I used a 5” spal fan that’s the biggest I could fit, the wiring was just some basic eBay kit for like 10 bucks. The hardest and most expensive part was customizing the radiator so the fan could fit into it. My quad already had a battery that I used for the lights.
    douglas likes this.

  9. #8
    Senior Member TrailBurner's Avatar
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    I used fans to cool down after a 300 ft run, no shade in pits, so I rigged up 2-3inch fans, ran off 2 double A's. Am running single CR80 Radiator. Peaks at 200-210 on a hot day, Fans cooled down efficiently.

    If you over heat up hill long climb, I would Slowly up Jet. IMO
    86 253cc, 40pwk, CT OOF pipe.
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