Quote:
Originally Posted by Pruzina
Fifty150hs I see you really know what are you talking about. You were absolutely right it's plastic tube exactly how you said.
I read in some treat that if you pull out the dipstick while idle it should change sound little bit as it's loose vacuum. Is it true? Bcs mine doesn't change at all.
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I haven't heard of that test. The most definitive test I know of for a vacuum leak is a smoke test. Puts smoke into the intake system under pressure. Smoke will come out anywhere there is a leak. Another option is to take a can of carb cleaner spray and spray it around the intake system. If there's a leak, it will suck some of the spray in and the idle speed will change.