"This isn't standard restoration work," he finally said. "And this wire shouldn't have been routed this way. But we're not calling it sabotage in writing until someone qualified can examine the whole thing. We'll call it an unauthorized modification with a safety-critical effect. That says what we can prove."
I repeated the phrase to myself. Unauthorized modification with a safety-critical effect. It sounded less dramatic than the terrible story forming in my mind, and for that reason I trusted it more.
With Frank observing, I made the repair plan and carried out the work within the limits of my tools and experience. We removed the foreign component without damaging its identifying surfaces, set it on a clean rag, and placed it in a container with notes about where it had been found. The affected wiring was restored using appropriate parts and protected from heat and movement. The frame required a proper repair of the earlier alteration, and Frank inspected my preparation, alignment, and finished work rather than treating a nice-looking weld as proof of safety.
I had welded since childhood. Hector had started me on scrap steel when I was barely tall enough to see over the bench, and he had been merciless about the difference between a bead that looked pretty and a joint that would hold. "The metal doesn't care whether you feel proud," he used to tell me. "It cares whether you did it right." Even remembering that, I was relieved to have Frank beside me when the work mattered this much.
He made me stop twice. The first time I had allowed my eagerness to get ahead of my measurements. The second time I reached for a tool before checking whether a part had cooled sufficiently. Neither mistake caused damage, but both reminded me that a deadline was not permission to gamble.
"Your uncle would have stopped you there," Frank said after the second correction.
"I know."
"Good. That means he taught you something."
By four thirty the major repair was complete, though we still had a list of checks to finish. Frank examined the result, asked me to repeat two measurements, and compared them with the documentation he'd brought. His expression remained serious. I could read a satisfied customer's smile across a room, but I had never learned how to read Frank's face while he worked.
"Structural work looks sound to the checks we can perform here," he said. "I'm not releasing a safety-critical motorcycle based on that alone. We can test it stationary and arrange the final independent inspection. Tell the owner what you found and what remains. No promises beyond that."
It wasn't the triumphant answer I wanted. It was better. It was an honest one.
We returned the machine to the test area. Once again I checked the restraints, the enclosure, the exhaust ventilation, and the emergency shutoff. Frank stayed outside the guarded section and watched the instruments, leaving me free to concentrate on the sound and behavior of the engine. The Knucklehead started with the same beautiful bark it had given me earlier, and I felt a sudden flash of anger at how easily a machine could seem trustworthy.