Buell XB12 Hot Hot

[Buellman]

Well, I replaced my battery and the XB12S started right up. Thank to all that helped me with that problem.

Next potential problem. I rode the bike for the first time this spring. I filled up the gas (91 octane) and proceeded to ride home. The total travel time was roughly 1 hour. My ass was really, really hot when I got home. The frame and lower half of the air box were nearly too hot to touch. I know these bikes get hot, but I don't remember the frame and air box cover getting so hot before. Am I just being paranoid or is there a potential problem> [confused]

 

[LeFox]

could do with some details though...
- how hot was it outside?
- did the fan work?
- what oil are you using?
- when was your last oil service?
- etc.

 

[Buellman]

It was around 73 degrees Fahrenheit. I had the bike fully serviced about 5 months ago just before I parked it for the winter. Fully synthetic HD oil was used. The fan did work and it was on after I shut off the bike.

 

[LeFox]

does your bike have any mods?

better would be a higher grade octane fuel.

try riding again and see if it's still the same.

 

[dans03firebolt]

Also if 91 is the highest you have in your area then I suggest running some octane boost to get it up. We have 93 where I am and that is all I run in the bike and it runs great. There is no doubt that these bikes get really hot for sure. My Bolt gets really hot in only 75 degree weather but that is expected from a air cooled motor that not much air gets to it.

 

[LeFox]

I suggest running some octane boost to get it up

no additives, plz

if the higher octane isn't available run 91...the bike is made & tested with u.s. fuel.

check your AF ratio and let us know something.

 

[warhorse]

you know they just get hot it doesnt matter how high of a ock you put in it. with the bikes running such a low compression ratio you dont want to push it. higher ock isnt going to drop that heat down enough to make it comfortable if so then i would ride down the road and get some moonshine from my uncle and run that.


be easy

 

[mrdozer2you]

My fan hasnt been coming on "only" when i shut the bike off. It has about 3500 miles on it now..maybe 300 miles since my most recent oil change ( Royal Purple Cycle ) The fan used to come on while riding...but lately it hasnt, any ideas about that? [confused]

 

[LeFox]

The fan used to come on while riding...but lately it hasnt, any ideas about that?

you need to ride, not just sit on it and make 'brm brm' noises

 

[warhorse]

yeah you gotta ride it like you stole it. not abuse it but put it thru it passes or to the edge of your ability because that is the only way you are going to be able to get that fan to come on...well you could wait till it get to be about 85f or better then you might get it to come on.


be easy

 

[mrdozer2you]

Its used to come on "while" riding just about every time in the past...regardless of outside temp. Nothing has changed in my riding style, even did 40 miles on the e-way averaging around 90mph. Before on that same ride I would exit the e-way and I could hear the fan like crazy over the exhaust....same ride again...no fan [confused]

 

[warhorse]

hmmmm maybe you have blown the fan relay or even the fuse ahve you checked thous. you know we keep flinging crap against the wall something is going to stick[smirk]

be easy

 

[LeFox]

dozer, are you past brake-in? changed oil? plus?

 

[mrdozer2you]

It has about 3500 miles on it now

yes

maybe 300 miles since my most recent oil change ( Royal Purple Cycle )

yes


and the fan works when I shut the bike off....just not while its running. I can leave it running after a ride, just sitting there idling away...no fan. Kill the engine, fan comes right on.

 

[warhorse]

then i am looking at the relay really hard cause one side of the relay could be burned out


be easy

 

[LeFox]

don't worry...it's the oil that is doing it's job.

the oil is still cool enough so when the engine is running, your engine is still getting some cooling from the oil.
shut it down, no more oil running through = fan.

if you leave it idling long enough, your fan will start

 

[warhorse]

you will see


be easy

 

[mrdozer2you]

if you leave it idling long enough, your fan will start

Ran it medium/hard for over an hour. Normally the fan would kick on at a stoplight. I let it idle about 5min at home after the ride...no fan. Killed the engine...fan on.

then i am looking at the relay really hard cause one side of the relay could be burned out

And I check this how? Put in a new one and see?[sad]

 

[warhorse]

well i cant remember if there is another relay like it or not if there is then just use it in its place. if not then see if the buell shop will hook you up with one to see if that is it. and i know how shops get a bad rep. on this site but sometime you have to keep looking til you find the one. you know?


be easy

 

[Somthngfrce]

I have a 04XB12S and run Amsoil synthetic oil.. Prior to the sythetic oil my fan ran frequently, now with the synthetic, the fan doesn't really run often. It does when I turn the bike off to help with the heat, but the oil helps! Not to discount any other advice, but maybe your bike is running a little more efficiently and producing less heat.