huge difference with bosios. That was on my SDL though which was smoking and nailing. TD I believe is still on original injectors, but I'll change at some point in hopes of improving fuel economy.

And to do locks, you don't need a vacuum pump, just a gauge. It's useful, but you can evacuate the system by starting the engine. Downside is you may start engine many times.

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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)