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My question is would our thumper engine make the needle jump around alot?
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Thats a good question,....I sure never thought about that. But its too late now,...as I thought it was such a great idea, I ran down to Napa, and of course they had every gage imaginable except a simple vacuum gage. But they'll have one at 7am.
And I already fabed the mount from 12ga ss and have it mounted on the bike. I even had a "T" to fit in the vacuum line,.....unless the gage line isn't the same size, then I'll need a reducer "T".
If it works like I hope it will, it saves me buyin a tach, I'll be tickled. I only want to know how hard the motor is working at speed, and that is what a vacuum gage does best. If it is too irratic to be usable, then I blew 30 bucks.
I'll keep posted here,..... maybe even a pic if I'm impressed w/ it