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Buell Forum » XBoard » Buell XBoard Archives » Archive through August 28, 2003 » What to do about the engine heat - XB9R? « Previous Next »

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Fireboltgeo
Posted on Wednesday, July 02, 2003 - 06:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Since the weather here in Ohio hit the 80's, the heat coming off the motor has taken a huge jump. It will darn near scald my right leg. What are other owners experiencing along this line?
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Anonymous
Posted on Wednesday, July 02, 2003 - 10:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Testing was done at wildly higher temperatures compared to your 80 degrees (try 120). If you have a heat issue, something is wrong. Fan not working, engine timed wrong, etc. are possibilities.
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Davegess
Posted on Wednesday, July 02, 2003 - 11:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

On hot days at stop lights my right leg is pretty uncomfortable. Not scalding but hot enough that i put my left foot down and leave my right up on the peg.

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Blake
Posted on Thursday, July 03, 2003 - 01:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Fireboltgeo, Dave,
Tight jeans exacerbate absorption by a rider's leg of heat radiating from the engine/exhaust. Loose jeans make all the difference. "Relaxed fit" is a good thing. Better yet, pair of armored riding pants :D
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Court
Posted on Thursday, July 03, 2003 - 05:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

>>>Better yet, pair of armored riding pants

Better yet, pair of Aerostich riding pants
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Captainplanet
Posted on Thursday, July 03, 2003 - 08:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

When it gets above 100 degrees in Austin, in heavy traffic, with the fan running, my right leg gets a bit hot. My right boot also gets a bit hot. I think the heat is mostly coming from the header and exhaust. I will be getting the header coated by jet hot or someone soon. I think that will take care of the issue.
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Blublak
Posted on Thursday, July 03, 2003 - 10:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ok, on my XB9R I've noticed a little heat as well.. But it's all from the header/pipe/exhaust. I don't have a problem really since most of the time I only put the left foot down. My right leg isn't trying to rest on the pipes . Just like the 'exhaust blowing on my foot' thing some people have problems with. Uh, move your foot a few inches.. Just a couple of thoughts.

Later,
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Apex1
Posted on Thursday, July 03, 2003 - 10:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I agree the heat is most likely coming from the exhaust. I also like the idea of Jet Hot coating the header to keep the heat inside. Also, keep up with regular oil changes, esp. when it's so hot out.
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Fuscat
Posted on Thursday, July 03, 2003 - 11:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I don't have an XB I have an S1 but an interesting side note is that after I just switched to synthetic oil I have noticed a little bit more heat on my right leg. I have checked and rechecked everything I can and have not found anything wrong. I figured at first maybe I didn't get enough oil put in her but after checking after each ride the level is correct.
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Blake
Posted on Thursday, July 03, 2003 - 12:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Fuscat,
You'd do better to consider other reasons for your apparent increase in leg heat... warmer weather, richer carburetion, leaner carburetion, tighter pants, darker pants. It ain't due to the oil.
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Kcfirebolt
Posted on Thursday, July 03, 2003 - 01:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I get heat from the xb on the right thigh too, but it only seems to bother me in stop and go traffic. I believe that air has a real hard time getting to that rear cylinder when the bikes not moving. Things seem to cool down once underway.

I found myself liking the hotspot alot this winter! :'>
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Darthane
Posted on Thursday, July 03, 2003 - 01:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If the fan comes on, there's no problem.

I've sat on blacktop in 95 degree weather, stuck in traffic for nearly a half hour. 80 degrees is nothing. As the Anony said, they test for much higher temps than that - do you REALLY think they'd release a bike that couldn't stand temps in the 80's? Come on, even Canada gets that warm, let alone the southern USofA!
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Captainplanet
Posted on Thursday, July 03, 2003 - 02:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It is definately not an overheating problem. I run my bike all summer in Austin, with the average temp mostly above 95 this time of year. The only time I really notice the heat is in stop and go traffic as well. My bike has always ran perfectly in all weather. I do think the jet hot will lower the temp on my leg. I just can't figure out when I can get it done. I don't like giving up my bike for even a few days. Anyone out there have a stock XB header they want to part with cheap?
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Anonymous
Posted on Thursday, July 03, 2003 - 02:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Air does not have a hard time getting to the rear cylinder, that's what the ducting and fan are for. Temps are more even front to rear than standard Harley-Davidsons.
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Fuscat
Posted on Thursday, July 03, 2003 - 02:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Blake-
I agree I have chalked it up to the increase in outside temperature. I just happened to change the oil the first weekend it really got warm this season. and it has stayed hot since! :) I remember a reply to a post from a few years back right after I just got my S1 and found this site. I asked why it was running so hot and a reply was something along the lines of "it's a Buell Its gonna be hot, RIDE IT!" :)
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Blake
Posted on Thursday, July 03, 2003 - 03:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If it really bothers you, you might consider spending $60 on some header wrap. It is WAY more effective than the ceramic or otherwise coatings. It will degrade over time, and need replacing every couple of years. Took me about an hour to wrap my Cyclone's header. It worked great. No more need for the heat shield or having to worry about melting my riding gear if it touched the header. Jet Hot will not provide that same protection. My race header is Jet Hot coated. I'm disappointed in it's performance as an insulator. It looks great though.
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Bud
Posted on Thursday, July 03, 2003 - 04:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Last summer, my rear-end ( bottom ) and legs were getting hot when stopping for a stop sign.
But now you talk about it, my legs ain’t getting hot anymore,

My bottom still dues, during fan action.
And I never taped them for heat protection, purely for looks ( and half a HP off course )Gr,m

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9rocket9
Posted on Saturday, July 12, 2003 - 03:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Hello to all from Arizona, new to the page and love my 9s
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Battleblue03
Posted on Sunday, July 13, 2003 - 01:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Bud what muffler are u running?
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Bud
Posted on Sunday, July 13, 2003 - 03:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Just the old buell race muffler,
It was a bit rusty, so I sand blasted it and painted black with Wrinkle plus coating
I think I didn’t apply it correct, or it is getting to hot,
because the coating is burning off at the header connection and on the end of the muffler.

i bet it's getting to hot doing 100 miles/hour,
on reagular base as a cruising speed.
Gr,m


edited by bud on July 13, 2003
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9rocket9
Posted on Saturday, July 19, 2003 - 11:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The wrapping material (jet hot?) on the exhaust helps heat to your leg but does it create more heat in the exhaust itself? I think I'd like to dissipate it as much as possible...no?
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Blake
Posted on Saturday, July 19, 2003 - 08:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Exhaust scavenging (helping to suck fresh air/fuel mixture into combustion chamber during valve overlap) is aided by higher speed exhaust flow. Cooling exhaust gasses slow down the flow. The more less heat that dissipates through the pipes' surfaces, the better, at least as far as performance is concerned. At least that's the theory. I'm sure someone somewhere will pop off a story about how their car or bike ran better with uninsulated pipes. NASCAR Winston Cup cars have wrapped headers.
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Americanrice
Posted on Sunday, July 20, 2003 - 09:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Where can I buy this header wrap? I went and looked at Auto Zone and they don't carry anything like that. Any ideas?
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Fasteddieb
Posted on Sunday, July 20, 2003 - 10:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Go to:

http://store.summitracing.com

and do a keyword search for "exhaust wrap". Lots of hits.

Let me know how it goes - it's something I might consider
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Jim_witt
Posted on Sunday, July 20, 2003 - 01:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Jeremy,

There must be a privately owned performance speed shop for cars in your area or surrounding area. Anyway, http://www.thermotec.com/index.html makes some really outstanding products. If you click on the the link highlited it will take you to their site. I purchased one of their really thin (about an 1/8";) thermo blankets (good up to 1200 degrees) to protect my fairing for my RR1200. It worked flawlessly. They also make some pretty trick narrow stainless steel clamps (shown in the picture) for their header wrap.



-JW:>;)
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Jim_witt
Posted on Sunday, July 20, 2003 - 01:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Oh, I should mention, Thermo-Tec contains no carcinogens or asbestos, something to think about. I have no idea what wrapping your header will do to the integrity
of the header itself from stress relieving over the long run. You’ll need to ask one of the engineer/metallurgist types about that. You’ll also need to replace it over time as it weathers (no big deal to do). They also make a Hi-Heat Coating that seals the pores making it last longer. You’ll have to be “real” careful using a hi-pressure washer or even at home with a nozzle attachment!

-JW:>;)
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Americanrice
Posted on Sunday, July 20, 2003 - 01:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks for the replies. Actually Summit Racing is only about 30 minutes from my house. I saw in a post above that the price is roughly $60, is that pretty accurate? Thanks

Jeremy
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Used_96_s1
Posted on Tuesday, July 29, 2003 - 02:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

>>>Better yet, pair of armored riding pants

Better yet, pair of Aerostich riding pants


I've got a pair of Two Bro's Racing jeans that have the kevlar on the seat and the knees. No, they're not race leather (have that too) but sometimes.....................
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