New models do not have petcocks.....
vacuum lines,there are three one for each petcock and one for the vacuum advance, the two for the petcocks go to the carb boots, one on each side,and the one for the vacuum advance goes directly to the no. two carb.
Not all radiators have petcocks. Simply disconnect the bottom hose to drain.
Older cars that have been used regularly have a lot of corrosion, the brake petcocks are probably rusted. Although there is a considerable amount of aluminum in the RR, the petcocks are not, be careful and have some replacement petcocks or you may find yourself draining the entire brake fluid. Apply a penetrating oil product the day before you start the project. Additionally, have an ample supply of new, sealed bottle of brake fluid available for the job. Note: Brake fluid reacts with the moisture in the air, so use a fresh supply.
any petcocks on the throttle body or intake are vacuum lines excluding fuel lines
petcocks are usually located on one of the bottom corners of the radiator, on the back (engine side).
GM discontinued installing radiator petcocks in the mid -90's. Remove the lower radiator hose to drain the radiator
Check your petcocks, each carb runs off its own. Also it could be the carbs.
1997 cavaliers don't have petcocks, actually no cavalier has a petcock. you can check the bottom of your buddy's motorcycle to find a petcock most likey.
Most petcocks look like a small bolt with a wing nut style head. The bolt is soft plastic and the wings can be broken off if they are twisted too hard.
should be drivers side of the radiator at bottom. I recommend just pulling of the lower radiator hose, i have seen numerouse petcocks break off, they are not worth the risk
A petcock is a small valve used to control the flow of liquid or gas. Although petcocks are used in a wide variety of applications, the following passage will describe one of the most common applications of the petcock which is the control of gasoline on a motorcycle engine