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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Extremely Hot Pipe /cgi-bin/YaBB.pl?num=1465411386 Message started by hockmanjosh on 06/08/16 at 11:43:06 |
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Title: Extremely Hot Pipe Post by hockmanjosh on 06/08/16 at 11:43:06 I just put on a dyna muffler. Everything fits up just fine, and sounds MEAN! However, the header pipe is getting extremely hot (burning paper towels when I touch them to it). Any ideas why? |
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Title: Re: Extremely Hot Pipe Post by Armen on 06/08/16 at 11:48:38 Stock the bikes are real lean and run hot. Lower restriction muff means REAL lean and even hotter. Guess what happens next? |
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Title: Re: Extremely Hot Pipe Post by hockmanjosh on 06/08/16 at 11:56:09 What would you recommend that I do to not make these pipes run so hot? 5D6E7179721C0 wrote:
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Title: Re: Extremely Hot Pipe Post by old.indian on 06/08/16 at 12:13:12 #1) Park City is at roughly 7,000+ feet and the bike is set at the factory to run lean at sea level. #2) By changing the muffler you make it even leaner. Best thing to do is to re-jet the carb and install a less restrictive air cleaner.. 8-) |
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Title: Re: Extremely Hot Pipe Post by verslagen1 on 06/08/16 at 12:16:46 1st don't sit there and idle more than a couple of minutes it takes to get ready to ride. Extended idling will overheat the pipe. Also idling on the kickstand or leaned over provides uneven oiling to the cam and rockers. Especially if your idle is really low. |
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Title: Re: Extremely Hot Pipe Post by verslagen1 on 06/08/16 at 12:27:35 5E5D551F585F5558505F310 wrote:
When you're higher in altitude, less oxygen goes in with the same amount of gas. So a lean setting at sea level maybe perfect at 7,000 feet. At least that's what the guys in Denver claim. So does the Dyna have the baffle knocked out? A stock Dyna may not need any adjustment. Set your jets so the bike runs right. If the pipe turns purple, it might be hotter than usual, gold is typical. if you want, get an infrared temperature gage and measure the temp. We can start a thread with hot numbers for reference. |
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Title: Re: Extremely Hot Pipe Post by stewmills on 06/08/16 at 13:46:26 475443425D5056545F00310 wrote:
I think that would be cool (no pun intended ;)). I have one of those gadgets and would be interested to see how hot I am (my wife says not very ;D ;D ;D). Just need to know at what point to measure such as immediately after riding moderately for XX time and where on the pipe to measure. |
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Title: Re: Extremely Hot Pipe Post by Dave on 06/08/16 at 13:53:38 I bought a "point and shoot" (infra red) temperature gun from Harbor Freight a while back, and is seems to work really well on the stuff I am powder coating - but I did shoot it at the exhaust pipe.....and I don't think it gets an accurate reading when pointed at the chrom header pipe. |
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Title: Re: Extremely Hot Pipe Post by hockmanjosh on 06/08/16 at 14:39:32 I have a point and shoot temp gun too. I will start a thread. I will measure 2 minutes after startup and after a 5 minute ride. Good base point??? With what I have described about my situation, do I run any risk of damaging my engine by riding my bike? |
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Title: Re: Extremely Hot Pipe Post by verslagen1 on 06/08/16 at 14:42:42 7A7D6C7E646065657A090 wrote:
I don't think they read below zero. ;D Quote:
You're gonna just have search around the pipe for a hot spot. You'll need to be closer than normal so the spot you're reading all on the pipe. And if you're looking for accuracy your barking up the wrong tree. |
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Title: Re: Extremely Hot Pipe Post by Meme on 06/08/16 at 17:06:56 47404C44424E4145405C472F0 wrote:
. If it's very lean, then yes, without enough fuel to burn, the tops of the pistons can burn. I doubt you are near that point though. Your best bet is to rejet the carb. |
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Title: Re: Extremely Hot Pipe Post by batman on 06/08/16 at 18:29:02 The question Verslagen asked is extremely important is the muffler stock or has the baffle been removed or a hole drilled in it?If you look through it and you can see any light it's not stock and this could be the cause of your overheating . You can repair the muffler by getting an automotive freeze plug and driving it down the muffler half way.If the muffler 's stock I would try a larger main jet ,but being you're at 7000ft I'd only go up one size from 145 to the next larger 147.5 Both these mod should be under $10 bucks. |
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Title: Re: Extremely Hot Pipe Post by hockmanjosh on 06/08/16 at 21:49:37 Do I want a 'small round' or a 'large round' main jet? Does it matter? If it does, what is the difference and why? |
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Title: Re: Extremely Hot Pipe Post by hockmanjosh on 06/09/16 at 10:44:00 The baffle has been drilled out! I can see directly through it. It's a straight pipe now. What should I do???? |
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Title: Re: Extremely Hot Pipe Post by verslagen1 on 06/09/16 at 10:50:08 bingo 3F3C29303C3369655D0 wrote:
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Title: Re: Extremely Hot Pipe Post by hockmanjosh on 06/09/16 at 11:18:41 Will rejecting take care of the heat issue? Will I damage my bike if I ride it the way it is, with the hot pipes? 253621203F3234363D62530 wrote:
[/quote] |
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Title: Re: Extremely Hot Pipe Post by justin_o_guy2 on 06/09/16 at 12:03:51 Or, you can junk the muffler, get a fresh,unadulterated, Dyna muffler and go. |
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Title: Re: Extremely Hot Pipe Post by Kris01 on 06/09/16 at 16:19:33 Jetting richer will cool down the exhaust a little but I doubt you could tell a difference in temp by feel. |
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Title: Re: Extremely Hot Pipe Post by LANCER on 06/10/16 at 00:07:14 7D445F450607360 wrote:
By FEEL ? ? ? NOOOOOOOOOOOOO ... Don't touch ! ! ! |
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Title: Re: Extremely Hot Pipe Post by Kris01 on 06/10/16 at 19:07:58 Haha! Maybe I should've worded that differently! ;D |
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