Twincharging combines the efficiency of a small engine with the fat power band of a bigger engine. But it's tricky to pull off.
Over time, small jets inside the carburetor can become clogged.
While all spark plugs generally have the same parts, the devil is in the details.
Two types of units—Roots and centrifugal—enhance performance in slightly different ways.
Installing a new one can be tackled in a couple of hours by the average DIY mechanic.
