The Tarp-Covered Used Bike
At 3:10 p.m. on a 45°F afternoon, Dana is buying a used 2016 300cc single-cylinder motorcycle that has sat under a tarp for 14 months. It starts and idles. She plans to ride it 25 miles home on two-lane roads before dark. She last rode three years ago and has a new DOT full-face helmet and new gloves, but her only footwear is a pair of soft work shoes. Before leaving she checks the bike: the chain moves about 1.5 inches at mid-span; the tires read 22 psi front and 26 psi rear against a placard of 29/32; the front brake lever pulls almost to the grip; the tires are dated 2016 and show sidewall cracks; the throttle snaps back. The seller says, “It just needs gas and a good ride.” Dana has no tools and no cell signal at the seller’s house.
1. Which of Dana’s findings should stop the ride home, and which are maintenance items she can address later? Explain the risk behind each finding.
Read the worked answer
The front brake lever and the tires should stop the ride. A lever that pulls to the grip usually means air, moisture, or a failing seal in the hydraulic system, not just worn pads. The first hard stop could leave her with little or no front braking, which is most of a motorcycle’s stopping power. Tires dated 2016 with sidewall cracks are aged rubber; they may hold air yet still lose grip, crack further, or fail at speed. Inflating 22/26 psi to 29/32 is necessary, but it does not repair cracked rubber. The 1.5-inch chain slack is likely beyond the manual’s spec and can let the chain jump the sprocket or lock the rear wheel; it needs adjustment before a road ride. The soft shoes are not a legal stopper but offer little ankle or abrasion protection. The seller’s “good ride” advice is not a mechanical inspection.
2. If Dana inflates the tires and the pressures hold, why is that still not enough for a 25-mile ride? What should she do at low speed before leaving the lot?
Read the worked answer
Holding air proves only that the beads are seated and the punctures are slow; it does not restore aged rubber or fix the brake. The sidewall cracks and the 2016 date are replacement items, and a spongy lever is a hydraulic fault. Before any road ride she should test the bike in a parking lot at walking speed: squeeze the front brake progressively and confirm it feels firm and returns; check that the clutch engages smoothly; test the throttle, turn signals, brake light, headlight, horn, and kill switch; and check the chain tension and tire pressures again after the tires cool. If the lever still comes to the grip, the chain cannot be adjusted, or the tires are not replaced, she should arrange a trailer or a ride and leave the bike.
3. What pre-ride inspection sequence fits this situation, and what result would make canceling the trip the correct judgment?
Read the worked answer
Use a consistent sequence such as T-CLOCS: tires and wheels, controls, lights and electrics, oil and fluids, chassis, and stands. For this bike, the tire date and cracks, brake feel, chain slack, and fluid levels deserve the most attention. A test ride in a lot at low speed is not a substitute for repairing known defects; it is a check that the repairs worked. Cancel the trip if the front brake still feels soft after bleeding, if the tires cannot be replaced, if the chain cannot be brought into spec, or if any lever or cable binds. The three-year riding gap also argues for practice in a lot before mixing with traffic. A short ride home is not worth a front-brake failure or a tire blowout at 45 mph.