Balancing carbs?

Symon27 · Nova Slayer Joined: 14 Sep 2012 Karma :

How many times do you balance your carbs?
I seem to have to do it every 6 months.
Is this normal?
Cheers
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Honda Nsr 125 - Sold
Zxr 400 - Sold
Bandit 600 - Current (Y)

Copycat73 · World Chat Champion Joined: 11 Jan 2013 Karma :

every 2-3 years
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thomp1983 · Crazy Courier Joined: 05 Feb 2011 Karma :

6 months is about normal for a zxr400 i usually do mine 3 or 4 times a year doesn't take long if you make a manometer with long pipes to go to the carbs

Chris.

frostage · Borekit Bruiser Joined: 14 Mar 2012 Karma :

You SHOULD balance your carbs with even a change in weather, so this question really is "How many times do you BOTHER balancing your carbs?

Personally I will check the balance with a simple 4-guage set from ebay roughly twice a year (height of summer / height of winter).

Any sort of engine modification will also of course result in a balance/tune.

All depends on the bike other than that, some bikes are fussy and need constant balancing, others will run right for years. Rule of thumb would be if it don't sound/ride right it probably aint!
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2000 Gixxer 750
1995 RM 250

Symon94 · Derestricted Danger Joined: 27 May 2010 Karma :

frostage · Borekit Bruiser Joined: 14 Mar 2012 Karma :

StevRS · Scooby Slapper Joined: 25 Jun 2009 Karma :

My ZZR1100 needs a carb balance with every 3k oil change according to the service schedule and it needs it by then.
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MV Agusta Brutale 800 RR, Unfinished 1978 XS250

Fizzer Thou · World Chat Champion Joined: 06 Aug 2011 Karma :

Jefr0 · World Chat Champion Joined: 29 Jul 2007 Karma :

Sorry to hijack.

I've owned my Cbr 600 for 6 years 30k miles and have never balanced the carbs. Is this something that should be checked as the bike seems to run fine?

Although I may notice a difference once done?
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Rides: Honda XR 125 ('03) Honda CBR 600F ('91), Ducati 916 Biposto ('95)

Sid_The_Sloth · Trackday Trickster Joined: 27 Nov 2011 Karma :

Another question to add to this, is it possible to do this using the bikes own fuel tank rather than hooking up a make shift gravity feed tank?

Fizzer Thou · World Chat Champion Joined: 06 Aug 2011 Karma :

In answer to the last two questions,the only way to see if the throttle bodies need balancing is to plug the gauges in and to see how far out they are - if at all.If you pull the clutch in and any rumble from the bottom end smootes out or lessens,this might suggest that the balancing needs to be checked.

As for using the petrol tank while checking the balanceof the throttle bodies,if the system is pressure fed ie.fuel injected,you may well not be able to useanything other than the tank due to a return system if it has one.Otherwise,you could make a gravity fed system quite easily.
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