Adjusting The Idle Speed

[kostas007]

i completely closed the idle valve,but it just dropped to 950-1000rpm...

 

[Enuo]

i completely closed the idle valve,but it just dropped to 950-1000rpm...

Vacuum leak.

 

[kostas007]

Vacuum leak.

from where?

 

[mazza]

Spray some carb cleaner carefully around the tb and vacuum pipes while the engine is running, if the revs increase you have a leak.

Sent from my C6603 using Tapatalk

 

[kostas007]

Spray some carb cleaner carefully around the tb and vacuum pipes while the engine is running, if the revs increase you have a leak.

Sent from my C6603 using Tapatalk

Hm
i really don't understand the point of that.
can you explain me why the revs will increase?

 

[tomwest]

the revs will increase if theres a leak because it will pull the carb cleaner into the inlet and engine, and its better at setting fire than petrol. you need less air to ignite it, so with the same amount of air in the cylinder you can get more power out of the carb cleaner. the increased power spins the engine faster.