carb balancing

[bigbigboy888]

how can you tell if the carbs need balancing and how much should i expect to pay? the bike is a fz600, cheers mat

[Stew]

I got told that my bike would take between 2 and 4 hours to do depending on how fiddly it turned out to be. cost at the garage I asked at was £32 an hour. Oh yeah and my bike is a VFR400 (very fiddly due to small confined space of engine). Havent had it done yet.

[Guest]

should it be done periodically? or is there a way to tell if it needs doing? is it something that needs doing every so often or once done will it stay correct till messed about with

[craigT19]

the only way to tell is that your start lossing power slowely, put it in for a survice and they should do it.
____________________
Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003

[Kickstart]

Hi

Carb balance is most noticably wrong at idle. Plenty of bikes sound like a barely oiled bag of spanners when the carbs are out of balance. Far less noticable at higher revs.

It is not a long job. I expect they have quoted you something silly as it may not be easy to get at the carbs on the VFR, or they expect the fairing to be a pig to get off.

Buy some Mercury vacuum gauges and do the job yourself. It is not difficult. However, it should be one of the last jobs you do, as adjusting the valves afterwards (for example) will send them back out of balance

All the best

Keith

[Guest]

doesd it matter about balancing at full throttle or is it just at part throttle and low revs?

[Kickstart]

Hi

They are just balanced at idle. You cannot adjust the balance seperatly at high and low revs anyway, and if a carb is pulling 1cc more of air at idle then it makes far more difference than 1cc at full revs.

All the best

Keith