For seventeen days, the oldest motorcycle inside Red Mesa Motor Works had refused to start.
By the eighteenth morning, nobody in the shop wanted to talk about it.
The machine sat on the center lift beneath a row of fluorescent lights, surrounded by trays of bolts, test meters, coffee cups, greasy rags, and four men who had spent most of their adult lives believing engines could eventually be forced to surrender their secrets.
This one would not.
It was a 1977 Harley-Davidson FLH Shovelhead.
The paint had once been midnight blue, though forty-nine years of sun had faded parts of the fuel tank almost gray. A narrow gold stripe ran along both sides. The seat had been patched three times. One saddlebag latch had been replaced with a homemade brass piece. The chrome on the exhaust carried the blue-brown stains of thousands of hot miles.
There were newer motorcycles in the garage.
Faster motorcycles.
Cleaner motorcycles.
Motorcycles worth more money.
None mattered as much.
The old Harley belonged to Thomas "Mack" McKenna, president of the Red Mesa Riders, a motorcycle club that had existed outside Flagstaff, Arizona, for almost forty years.
Technically, Mack owned the bike.
Emotionally, everyone in the club did.
It had originally belonged to Aaron Vance, one of the club's founders.
Aaron had ridden it across twelve states, through storms, deserts, mountain passes, weddings, funerals, hospital visits, and enough bad decisions to fill three lifetimes.
He had died nineteen years earlier.
Not on the motorcycle.
Cancer had done what highways, bar fights, snowstorms, and bad brakes never managed to do.
Before he died, Aaron had given Mack the key.
"Don't turn her into furniture," he had said.
Mack hadn't.
Every October, on the weekend closest to Aaron's birthday, the Red Mesa Riders held a memorial run through Oak Creek Canyon.
And every year, Mack rode Aaron's Shovelhead at the front.
This year was supposed to be no different.
Except the ride was five days away.
And the motorcycle was dead.
"Again," said Luis Ortega.
The shop owner, Cal Bishop, reached for the starter.
The engine turned.
Once.
Twice.
Then stopped with a hard mechanical clunk.
Nobody spoke.
Cal released the button.
Luis removed his glasses.
"Same place."
"You're sure?" asked Dennis Shaw.
Luis gave him a look.
They had marked the pulley hours ago.
They were sure.
On the workbench sat enough replaced components to make the failure insulting.
They had checked compression.
Rebuilt the carburetor.
Changed the plugs.
Tested the coils.
Inspected the valves.
Replaced a questionable starter relay.
Measured pushrod adjustment.
Verified oil flow.
Checked the charging system.
Rebuilt part of the ignition.
Dennis had even pulled the primary cover twice because he was convinced something inside was binding under load.
Nothing.
The engine would rotate freely by hand until pressure built.
Then sometimes it stopped.
Other times it nearly started, coughed once, and died.
The fourth mechanic, Owen Price, had spent thirty years repairing electrical systems.
He leaned against the bench with a multimeter hanging from one hand.
"I still say we're chasing two problems."
Luis shook his head.
"That doesn't explain why it stops."
"It explains why nothing makes sense."
Cal rubbed both palms down his face.
He had owned Red Mesa Motor Works for twenty-six years.
The garage had survived recessions, highway construction, three burglaries, one flood caused by a broken water main, and a disastrous six-month experiment in selling Italian scooters.
Cal could rebuild a carburetor with his eyes half closed.
Luis could hear valve trouble before most customers noticed anything wrong.
Dennis understood old American V-twins as if he had personally negotiated their design.
Owen could diagnose wiring disasters caused by decades of owners adding lights, switches, horns, radios, alarms, heated grips, and homemade "improvements."
Yet Aaron's motorcycle had humiliated all four of them.
Cal stared at the bike.
"Maybe we tell Mack it's not happening."
No one answered.
That silence was an answer.
The side door opened.
Cold morning air entered first.
Then Mack.
At sixty-four, he was still a large man, although age had softened the shoulders that once made leather jackets look too small.
His beard was white around the chin.
His riding vest was faded.
A patch over his heart read RED MESA RIDERS.
He closed the door and looked at the faces in the shop.
His eyes moved toward the lift.
"Bad?"
Cal sighed.
"We've eliminated almost everything obvious."
Mack walked to the Harley.
"That's not what I asked."
Cal hesitated.
"Bad."
Mack rested one hand on the fuel tank.
The garage became quiet.
"How bad?"
Luis answered.
"If we don't find something soon, we're going to have to pull the motor completely. Split the cases. Start from zero."
"And Saturday?"
Cal shook his head.
Mack stared at the tank.
He didn't look angry.
That would have been easier.
He looked older.
"The ride starts at nine."
"I know."
"Aaron's sister is coming this year."
Cal hadn't known that.
Neither had the others.
Mack continued quietly.
"She hasn't been on the memorial run since he died."
Dennis looked away.
Mack gave the tank a gentle tap.
"Come on, old girl."
Nothing.
Of course nothing.
Then a voice came from near the rear door.
"You're losing ground."
Four mechanics turned at once.
Mack turned more slowly.
A teenager stood beside a stack of discarded tires.
He wore an oversized green jacket with a broken zipper, jeans faded almost white at the knees, and shoes that had been repaired around the toes with strips of black tape.
He was thin.
Too thin.
Dark brown hair fell over his forehead.
A backpack rested beside his feet.
Cal knew him.
His name was Eli Ward.
He had first appeared behind the garage two weeks earlier.
Cal had found him early one morning sleeping between two storage containers, wrapped in a moving blanket.
When Cal asked where he lived, Eli had answered, "Around."
When Cal asked about his parents, the boy had stopped talking.
Cal should probably have called someone immediately.
Instead he had bought Eli breakfast.
Over the following days, an informal arrangement developed.
Eli swept the shop.
Emptied trash.
Washed motorcycles.
Organized boxes.
In return, Cal paid him small amounts in cash, fed him lunch, and pretended not to notice when the teenager slept in an unused office behind the parts room.
Cal had been planning to figure out what to do next.
He had not planned for Eli to diagnose a motorcycle.
Dennis frowned.
"What did you say?"
Eli pointed at the Shovelhead.
"You're losing ground."
Owen lifted the multimeter.
"Voltage drop?"
Eli shook his head.
"Maybe."
Dennis gave an irritated laugh.
"Kid, that's helpful."
Eli didn't respond to the sarcasm.
He pointed lower.
"That strap."
Everyone looked.
A braided metal ground strap ran between part of the engine assembly and the frame.
Old.
Dirty.
Ordinary.
Owen had tested it.
"It has continuity," he said.
Eli nodded.
"I know."
Owen's eyebrows rose.
"You know?"
"I watched you test it yesterday."
Dennis sighed.
"So what are we doing?"
Eli stepped closer but stopped several feet from the lift.
He did not touch anything.
"You're testing it cold."
Owen stared at him.
Eli continued.
"But it doesn't fail cold every time."
Nobody spoke.
"The engine turns," Eli said. "Then vibration starts. The motor moves in the mounts. Metal heats. That strap changes position."
Cal looked at Owen.
Owen looked at the strap.
Dennis crossed his arms.
"And you're telling us the entire engine is locking because of one ground strap?"
"No."
Eli's voice was barely above normal conversation.
"I'm saying you keep treating every symptom like it comes from one problem."
Owen's expression changed.
The kid had just repeated his own theory.
Mack studied Eli.
"How old are you?"
"Fifteen."
Dennis muttered something under his breath.
Mack ignored him.
"You work on motorcycles?"
Eli looked toward the old Shovelhead.
"Used to."
"Where?"
The boy became quiet.
Cal recognized the reaction.
That question had gone somewhere painful.
Mack noticed too.
He didn't press.
Instead he asked, "What would you check?"
Eli looked from Mack to Cal.
Then at Owen.
"Can I show you?"
Dennis started to object.
Cal raised one hand.
For eighteen days, experts had been allowed to be wrong.
He decided they could spare ten minutes for a fifteen-year-old.
"Show us."
Eli walked toward the lift.
He crouched beside the Shovelhead.
He did not immediately reach for a wrench.
He simply stared.
One minute passed.
Then two.