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Offline troy_s

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Exhaust pressure
« on: May 29, 2016, 09:19:07 AM »
Morning all,
 My mechanical knowledge is close to not much. Don't ask me how I first discovered this, but i have noticed that if you hold your hands over each exhaust outlet there is considerably less force of the exhaust from the right side compared with the left.

 Is this something I need to be concerned about, and if so, how concerned?

cheers
Troy
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Offline Sicman

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Re: Exhaust pressure
« Reply #1 on: May 29, 2016, 09:20:45 AM »
Stimpy - Back pressure is your area of expertise  :whistle :grin
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Offline Tipsy

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Re: Exhaust pressure
« Reply #2 on: May 29, 2016, 09:27:20 AM »
I dont know about Stimpy but my back pressure releases quite readily.... :H :rofl :hatwave

Tipsy
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Offline Jglan10 (Onesie)

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Re: Exhaust pressure
« Reply #3 on: May 29, 2016, 11:51:58 AM »
Quote from: troy_s on May 29, 2016, 09:19:07 AM
Morning all,
 My mechanical knowledge is close to not much. Don't ask me how I first discovered this, but i have noticed that if you hold your hands over each exhaust outlet there is considerably less force of the exhaust from the right side compared with the left.

 Is this something I need to be concerned about, and if so, how concerned?

cheers
Troy
yay your alive
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Offline Abe

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Re: Exhaust pressure
« Reply #4 on: May 29, 2016, 12:49:03 PM »
Troy do you feel that there is less pressure coming out of the offside (right side sitting on the bike) exhaust ??

If so, check the exhaust clamp near the foot pegs are tight, as they loosen them and roll the muffler out of the way when fitting a tyre.

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Offline HunterTodd

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Re: Exhaust pressure
« Reply #5 on: May 29, 2016, 05:33:38 PM »
From memory the two sides are interconnected so it probably doesn't mean a lot.
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Offline Gadget

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Re: Exhaust pressure
« Reply #6 on: May 29, 2016, 05:35:12 PM »
Quote from: HunterTodd on May 29, 2016, 05:33:38 PM
From memory the two sides are interconnected so it probably doesn't mean a lot.
I thought so too. I believe it is done to keep suitable back pressure on every cylinder.

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Offline basadia

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Re: Exhaust pressure
« Reply #7 on: August 08, 2016, 03:46:57 PM »
Maybe your bike needs a carb vacuum balance, if the two left cylinders are sucking more air the right side bank maybe the exhaust balance is off.
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Offline troy_s

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Re: Exhaust pressure
« Reply #8 on: August 08, 2016, 04:05:22 PM »
Not being particularly mechanically minded, mine is fuel injected. Does this have a bearing on your suggestion?

cheers
Troy
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Online Brock

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Re: Exhaust pressure
« Reply #9 on: August 08, 2016, 05:37:05 PM »
Quote
Does this have a bearing on your suggestion?

Yep, no carbs
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Offline basadia

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Re: Exhaust pressure
« Reply #10 on: August 09, 2016, 07:29:31 AM »
Yep no carb but a vacuum balance to the throttle bodies always helps make your bike run better and may be contributing to the exhaust imbalance.
Not sure if there is a cross over in the final section of the exhaust, if there is it might be a restriction in the right side muffler causing the problem as the exhaust gasses will find the least resistance to escape.
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Offline STroppy

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Re: Exhaust pressure
« Reply #11 on: August 09, 2016, 06:48:35 PM »
Quote from: Tipsy on May 29, 2016, 09:27:20 AM
I dont know about Stimpy but my back pressure releases quite readily.... :H :rofl :hatwave

Tipsy

Way too much information . . . . .
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Online Cerebral Knievel

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Re: Exhaust pressure
« Reply #12 on: August 10, 2016, 10:19:37 PM »
Quote from: STroppy on August 09, 2016, 06:48:35 PM
Quote from: Tipsy on May 29, 2016, 09:27:20 AM
I dont know about Stimpy but my back pressure releases quite readily.... :H :rofl :hatwave

Tipsy

Way too much information . . . . .

STroppy knows all too well about my back pressure.
After spending 24hrs in the same small car together i'm sure Tipsy knows all about it too.... :'(
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Offline Tipsy

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Re: Exhaust pressure
« Reply #13 on: August 11, 2016, 10:29:14 AM »
 :p :crackup :rofl :wink1 :wink1 :whistle :fp :butt

Tipsy
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