Next stupid ques... plug heater hoses???
11-16-2009, 11:12 AM
#6
2nd mouse gets the cheese
SuperBike
Join Date: Jan 2008
Location: Beaverton, OR
Posts: 1,697
The only reason to do it would be to simplify the carb removal process. If you don't plan on removing them every week I would just leave it be. I believe they are there to help the bike warm up faster on cold starts.
11-16-2009, 11:22 AM
#7
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
It's been discussed several times... (have I mentioned lately that we have a search function?)
Removing them might simplify a few things... But it does actually reduce power...
Look here https://www.superhawkforum.com/forum...9&postcount=35 for the latest iteration of the discussion, with links back to older ones...
Removing them might simplify a few things... But it does actually reduce power...
Look here https://www.superhawkforum.com/forum...9&postcount=35 for the latest iteration of the discussion, with links back to older ones...
11-16-2009, 01:33 PM
#8
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SuperSport
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Location: Las Vegas, NV
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11-16-2009, 08:34 PM
#10
Senior Member
MotoGP
Join Date: May 2008
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Plus they help prevent carburetor icing, which you don't have to worry about if you never ride when the temp is below the low 40s.
11-16-2009, 08:40 PM
#11
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SuperSport
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11-17-2009, 03:29 AM
#12
Out of my mind, back in 5
MotoGP
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Last edited by Tweety; 11-17-2009 at 05:38 AM.
11-17-2009, 05:50 AM
#13
Destructive Tester
Superstock
Join Date: Oct 2009
Location: N.E. oHIo
Posts: 263
This is the only dyno info I could find regarding the carb heating:
Way back in the day when I was tuning my bike I hooked up a shutoff valve on my carb heating supply hose and dyno'd back-to-back with it on and off. Results were interesting: Bike actually made more power with the carb heating turned on than it did with it off. Possible errors in this are the fact that I did the "off" run last. Bikes typically make their best power after you blow all the crap out and the oil is thinner, though it only makes a small difference by 0.5 - 1.0 hp. That was the same amount the two dyno runs were off by. I concluded that the carb heating does not affect performance at all, and other than the hoses being a PITA to hook/unhook when working on it, they harm nothing.
Rex
11-17-2009, 08:59 AM
#14
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
In hot climate no difference at all so far as has been reported...
But if you are doing cold starts it's a bitch with out it... And it does benefit from better atomisation with the heated fuel as soon as the temps drop from "hot" to "normal" (The VTR has big honking carbs!)...
But if you are doing cold starts it's a bitch with out it... And it does benefit from better atomisation with the heated fuel as soon as the temps drop from "hot" to "normal" (The VTR has big honking carbs!)...
11-17-2009, 09:45 AM
#15
Destructive Tester
Superstock
Join Date: Oct 2009
Location: N.E. oHIo
Posts: 263
11-17-2009, 09:51 AM
#16
2nd mouse gets the cheese
SuperBike
Join Date: Jan 2008
Location: Beaverton, OR
Posts: 1,697
11-17-2009, 10:00 AM
#17
Out of my mind, back in 5
MotoGP
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Location: Skurup, Sweden
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