what is balancing the carbs on a 2001 r1?

Question

why do they balance the carbs what kind of symptoms or problems u have that u have to balance the barbs
2001 yamaha r1
cheers

Answer 1

simply put,all 4 carbs must work in union,throal at exactly the same time...if they dont you loose Power,the engine can shake [out of balance]...4 gadges are attached vie vacuum pipes to the carb manifolds...theres show if alls well,adjust anyone that's out of sink....sorted

Answer 2

On bikes (or cars) with multiple carburettors, in order to have the bike running at peak performance with the most efficient usage of fuel, the carbs need to be balanced. This should be checked when any problems develop or performance is reduced and has not been cured by servicing, plug replacement etc.



The most common and easiest method of doing this at home is using a set of vacuum gauges .. Morgan Carbtune being the easiest to use and can be picked up for about £30 on Ebay.



The process involves removing blanking plugs and screwing adaptor pipes into the airflow chambers between the each carb and the air filter box, to these pipes, hoses are attached which then go attach onto the Carbtune.



Once the engine is started, the various vacuums are indicated by the level of the rods in the guage, and you adjust the mixture settings and accelerator linkages until the rods rise and fall together during throttle manipulation.



Sounds complicated until you do it, but it's really quite simple and the benefits as far as smoothness of running, performance and fuel efficiency can be amazing.

Answer 3

Hey sam,



What this means is that we want each carb to give the same amount of gas ti it's cyclinder as the other carbs do. If we don't, the bike is unstable in power and vibration. Imagine 1 carb running at full speed but the others at half speed. Not good.



The way the carbs are balanced are;

1: all carbs have to be same make and condition, If one is dirty it won't

tune the same.

2: The master carb is setup and used to drive via linkage, the other

carbs.

3: They hook a vacumn gauge to every carb, as the carb pulls gas and

air it creates vacumn. By adjusting all of these exactly the same

you make the carbs put out the same amount of gas to each

cyclinder. Work load is equal.



its a little more then that, but I hope it explains why and how.

Answer 4

To notice a massive fault the (carbs out of balance) would be very unlikely,this adjustment can be done but only after,ignition,valve clearances,rpm loss per cly tests are done as this only shows the butterfly/slide position at idle or given setting.The vacuum gauge will only show volume entering the cyl not mixture/fuel levels.You cannot slow 1 piston without the rest as they are connected by the crankshaft as guardrai suggested but the amount of power each piston is delivering can be,The bottom line 2001 R1 unlikely to be a problem 1950 twin tick over yes

Answer 5

Several guys gave very good explainations of how and what. As far as the actual running of the bike, if the carbs are very much out of sync, you'll get more vibration at small throttle openings. The wider you open the throttle, the less pronounced the vibration will be because at the carb opens up, the difference between carbs becomes less. At wide open throttle there will be little if any difference between synced and unsynced carbs.



As far as needing syncronizing, that depends upon the number of miles and how much twisting you've been doing at the twist grip. Unless the carbs are super touchy or you've been screwing around with them, you can probably run 25,000-30,000 miles before even considering a sync job.



In the old days of 4 carbs with 4 separate cables, snycing was needed more often because of uneven cable stretch and wear. Most carbs today are connected using mechanical linkages that wear very little.

Answer 6

Carburetors don't fall out of adjustment, requiring them to be synchronized (balanced).

On multi cylinder engines, each cylinder wares at a different rate than the others.

Meaning one cylinder can be stronger than others, therefor running faster (more efficiently).

Or slower than others, because it's weaker.

During the synchronization process, each individual carburetor is adjusted to slow down the faster running cylinders and adjusted to speed up the slower running cylinders.

Synchronizing carburetors, balance each cylinder to run at the same speed (RPM) - which makes the engine run smoother.

Answer 7

4 carbs? 4 Cylinders! The amount of fuel/air mixture should be synchronized/balanced so that the same amount goes into all four cylinders...



Good luck

Jason

Answer 8

Usually, carb balancing is done at a service - failing to do so can cause rough running, poor starting, flat spots, etc.