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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through August 17, 2009 » Weird fan operation after ECM reflash and warranty work « Previous Next »

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Xbgeorge
Posted on Tuesday, August 11, 2009 - 11:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I took my 2008 XB12R in to have some warranty work done. The bike had a bad stumble between 4100-4500 RPM’s. It also, sometimes, had a cough at 2100. The rear head gasket was leaking too.

Uke’s HD/Buell in Kenosha, Wi did the following:
Replaced the front seat (staples were pulling out)
Performed a recall to reroute the clutch cable
Replaced the rear head gasket
Replaced rear spark plug wire
Replaced a cracked fuel line

The stumble is gone and the bike runs smoother. It also has more low end grunt. I always wondered why people called these things wheelie machines. Mine has always been hard to get up, even in first. Now with just a twist of the throttle, I’m looking at the sky.

Now I’ll talk about the fan. It would never come on, when riding, except while stuck in gridlock traffic on a very hot day. When I shut the bike off, the fan would stay on for 5-10 minutes. Longer than other Buells I rode with. The bike was almost unbearable to ride, because of the amount of heat. I’ve actually had burns on my legs from it. After the new reflash, the fan operation is completely different. It now stays on while riding, except below 11mph. Every time I come to a stop, it shuts off at 11mph. It also doesn’t run after I shut the bike down. The bike seems to run cooler, but I have only ridden it twice. Both times it was in the low 70’s. I am a little concerned about it not coming on after shut down, but maybe it is running cooler. The quietness is strange. I’m going to romp on it this afternoon and see how it performs.
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Anonymous
Posted on Tuesday, August 11, 2009 - 12:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It's an intentional change to the fan strategy.
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Dmhines
Posted on Tuesday, August 11, 2009 - 01:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Interesting ... if there is no negative impact to the longevity of the engine I would love to have that new fan strategy on my 06 XB!
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Xbgeorge
Posted on Tuesday, August 11, 2009 - 02:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Anonymous,

Thanks for the information.

It definitely runs cooler. I rode it pretty hard on my way home from work. When I shut the bike off, the fan did come on, but only on the slow speed. It used to roar for a long time. It only stayed on for about a minute. The radiant heat was way down. I am more than happy!

If you haven't done the latest reflash, I would recommend it.

Thank you Buell. And thanks to Uke's HD/Buell in Kenosha, WI. They have always treated me well and taken care of my bike.
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Alchemy
Posted on Tuesday, August 11, 2009 - 03:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Shutting the fan off when at slow speed would make it less conspicuous.
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