carb synchronizing

[double-o]

my 87 mercury 115hp has sat for three years <br />and i was told to have th e carbs synced. is that a rule of thumb or is unnecessary. the<br />motor runs fine so far

 

[kenthrussell]

Re: carb synchronizing

Hi there to syn your carbs is not needed as long as they all open up together or very close when you open the throttle.....

 

[12Footer]

Re: carb synchronizing

If it runs fine, they are most likely ok,and don't need to be synced. But if you have had problems with lean-running carbs, by all means,take it to a marina that has gauges.<br />If one is running too lean, it will damage the cylinders it supplies over time.

 

[Hitman65]

Re: carb synchronizing

Good morning Double-O and Kent,<br />As a rule we never resync carbs unless we have known problem or have taken the carbs off for a major repair. But Kent, syncing the carbs is not really based just on there opening together. It is really a measure of the amount of vacume pulled by each cylinder. You use the (normally) #1 as a base and macth the rest of the cylinders to it. For example if #1 is pulling 10 lbs at idle then I would adjust the other carbs to 10 lbs also then they would all be sync'ed.<br /><br />Hope this helps,<br /><br />Hitman