Choppin it up with Graham Ambrose #464

The Harley-Davidson Sportster is a classic, air-cooled V-twin motorcycle line known for its simple, traditional design and easy-to-work-on reputation. In this segment, the host specifically mentions a bone-stock 2006 Sportster as a first bike purchase.

“Rubber mounted” refers to using rubber bushings or mounts to isolate vibration between the engine/drivetrain and the frame. On motorcycles, this helps reduce harshness and can make the ride feel smoother without changing the engine’s basic output.

“Carbureted” describes engines that use a carburetor to mix fuel and air before it enters the cylinders. Carburetors were common on older motorcycles; later designs often switched to fuel injection for more consistent fueling across temperatures and riding conditions.

This is a rider’s description of opening the throttle aggressively right away. On a motorcycle, that can quickly overcome low-speed traction and can also make it easier to stall if the rider doesn’t manage clutch and throttle smoothly—especially for a first-time rider.

This segment focuses on the speaker’s early riding experience, including a throttle mistake that caused a spin-out. It sets up why they kept riding and how they became more cautious after the incident.

“Slam the rear” is slang for lowering the rear of a motorcycle by changing suspension settings or components to reduce ride height. It’s commonly associated with a more aggressive look, but it can affect ground clearance and handling.

“Delete the wiring” refers to removing or simplifying parts of the motorcycle’s electrical harness, usually to eliminate emissions equipment, unused circuits, or to support a custom build. This can reduce clutter, but it also risks reliability or safety if done incorrectly.

The Kawasaki ZX-6R is a sport motorcycle known for its high-revving inline-four engine and track-oriented handling. In the segment, it’s the speaker’s first bike, which sets the context for how they learned riding and experienced a throttle mistake.

“Shovelhead” is a nickname for Harley-Davidson’s Evolution-era V-twin engine family (named for the rocker-box/valve-cover shape). In custom motorcycle circles, it’s often treated as a classic, build-friendly engine that people keep upgrading with frames, wheels, and other bolt-on parts.

“Motor” and “trans” refer to the engine and transmission assembly. Pulling both out early is common in a build because it lets the builder cleanly fit the drivetrain to the new frame and align everything before final assembly.

A “frame” is the motorcycle’s main structural backbone, and ordering a custom “Paco” frame suggests they’re building a chopper/custom from the ground up rather than modifying a stock frame. Custom frames also determine fitment for wheels, forks, and engine/transmission placement.

The speaker mentions sending the motorcycle motor out to “billy,” implying a specialist engine builder or shop. In custom builds, having a dedicated engine shop handle machining, assembly, and tuning is often a key step.

In chopper culture, a “long bike” usually means a stretched build—longer wheelbase and/or longer front-end geometry—to create a laid-out stance. It’s less about top speed and more about the visual and handling feel that comes from that geometry.

“Evo” is shorthand for Harley-Davidson’s Evolution (Evo) V-twin engine, used starting in the 1984 model year. In the custom scene, it’s a popular swap/build choice because it’s a later-generation platform than earlier engines like the Shovelhead.

Beaver Bash is referenced as the event where the speaker’s chopper direction changed—connecting the custom-bike community, inspiration, and real-world exposure to different builds. It functions as a story trigger for why they chose a particular engine/build path.

A chopper is a custom motorcycle style known for stretched looks and a laid-back, “custom” stance. It’s often associated with aftermarket frames, handlebars, and engine/chassis styling choices rather than stock geometry.

Arlenes motorcycles is a custom-motorcycle parts brand focused on building and supplying aftermarket components for choppers and touring bikes. In this segment, they’re presented as a source for both classic-style parts (like air cleaners) and newer materials (like carbon fiber).

Air cleaners (intake filters) are the components that filter air before it enters the engine. On custom bikes, they’re also a visible styling element, and changing them can affect how the engine breathes.

Carbon fiber is a lightweight composite material used in motorcycle parts to reduce weight and improve stiffness. In the aftermarket world, it’s often chosen for both performance benefits and a premium appearance.

Handlebar “bars” and “risers” are common customization parts that change riding position. Risers raise or angle the bars, affecting ergonomics and leverage for steering control.

Kabuto is a motorcycle-helmet brand known for race-oriented designs and advanced safety engineering. Here, the host highlights specific aerodynamic features and safety standards as reasons to choose Kabuto helmets.

A wake stabilizer is an aerodynamic feature intended to manage airflow around the helmet to reduce turbulence and improve stability. On helmets designed for high-speed riding, these shapes help keep the rider’s head/helmet from being “buffeted” by wind.

A crest spoiler is an aerodynamic add-on/shape that helps control airflow separation over the helmet’s top area. Spoilers are used to reduce drag and improve directional stability at speed.

“Triple digit speeds” means speeds of 100 mph (or 100 km/h depending on context, but the phrase is commonly used for 100+ mph in US motorcycle talk). The point is that the helmet’s aerodynamics and stability are designed to work under high wind loads.

A composite shell is a helmet outer structure made from layered materials (often including fiberglass, carbon fiber, or aramid fibers) rather than a single molded material. Composite shells are used to balance strength, weight, and energy absorption in a crash.

A full-face helmet covers the entire head, including the chin bar, for maximum protection. “GP race” indicates a track/racing-oriented design with aerodynamic shaping and a fit optimized for high-speed riding.

A hardtail motorcycle has no rear suspension—so the rear frame is rigidly mounted to the wheel. This affects ride comfort and traction, and it’s a defining feature of many classic custom “chopper” builds.

“Soft tail” is a custom-motorcycle term for designs that use rear suspension (unlike a hardtail). In this context, the host is saying the five-speed transmission came from a soft-tail donor bike, implying a parts mix for the build.

A “five speed” refers to a motorcycle transmission with five forward gears. Gear count influences how the bike accelerates and how it cruises at speed (because gear ratios determine engine RPM for a given road speed).

“Marketplace” here refers to buying a vehicle/bike through an online classifieds platform. For enthusiast purchases, it often means you’re relying on the seller’s description and photos, so mechanical verification (and a pre-purchase inspection) becomes especially important.

When a motorcycle “brakes didn’t work,” it usually means a safety-critical fault in the braking system—commonly issues like air in the hydraulic lines, worn pads, leaking seals, or a problem with the master cylinder/calipers. For a used bike, this is a major red flag because it can turn a “running” purchase into an immediate repair project.

“Transmission” is the gearbox that transfers engine power to the rear wheel. The speaker mentions keeping the transmission, suggesting that while the bike as a whole had problems, the gearbox was still functional.

A “title” is the legal ownership document for a vehicle. Keeping the title matters for registration and transfer—especially when buying/selling parts or doing a build from a frame and engine.

“Piece it together” describes building a motorcycle from separate components (like a frame plus an engine) rather than buying a complete, ready-to-ride bike. This approach can reduce risk if you source known-good parts, but it also increases time and requires compatibility checks.

“Aftermarket” parts are components made by companies other than the original manufacturer. In bikes and cars, aftermarket upgrades are often used to change performance, appearance, or reliability compared with stock equipment.

A “stroker motor” is an engine built to increase displacement by using a crankshaft and related parts that create a longer stroke. That typically boosts low-end torque, which is why builders like it for street riding and custom builds.

A “plug and play” motor is designed to install with minimal custom wiring or fabrication. In practice, it usually means the engine and supporting components are set up to work with the bike’s existing systems right away.

“80 inch” refers to engine displacement measured in cubic inches, commonly used in Harley-Davidson circles. Higher displacement generally means more potential torque, which is why people talk about inch size when planning builds.

“Stock inch” means the engine displacement is at the factory (non-stroker/custom) size. In this context, it’s being contrasted with a larger custom “inch” build to see how the riding experience changes.

“93 inch” is another displacement figure in cubic inches, again reflecting a large-bore/custom Harley-style build. The speaker is comparing how a larger-inch shovelhead build feels versus the stocker they’re picking up.

A sissy bar is an upright backrest mounted behind the rider on a motorcycle. It’s often used for passenger comfort and also contributes to the bike’s custom look, especially on choppers.

To “tack” parts in metal fabrication means making small, temporary welds to hold components in position before doing full welds. It’s a common step to ensure alignment before committing to the final welds.

“Sea channel” appears to be the speaker’s way of referring to a channel-shaped steel section used as a structural material. Channel sections are commonly used in fabrication because their shape resists bending better than flat stock.

In motorcycle building, “rigidity” refers to how resistant a frame or mounted part is to flexing under load. More rigidity can help the bike feel steadier and more predictable when riding.

“Muscle bike” is a custom-motorcycle vibe term—typically implying a bold, aggressive look and stance rather than a specific factory model. In this context, it’s paired with “high and tight” and “tough guy” to describe the intended visual theme for the next build.

“T-tars” is almost certainly shorthand for “T-bars,” a handlebar style shaped like a T. On choppers, T-bars are popular because they change the riding position and give the bike a distinctive classic/custom look.

The “top end” of an engine refers to the upper components—typically the cylinder head(s), valves, and related parts. “Tore the top end off” means they disassembled those upper sections, usually for rebuild work or inspection.

“Cases” are the engine’s housings—where internal rotating components sit and are supported. In a build like this, sending the cases out typically means machining, cleaning, or refinishing as part of an engine refresh.

On a motorcycle, the chain is the main power-transfer link between the engine and the rear wheel. Over time it stretches and wears, which reduces efficiency and can affect shifting and acceleration.

A sprocket is the toothed gear the chain rides on. When sprockets wear (often along with the chain), the chain can start to skip or run noisier, and the drivetrain may need parts replaced together.

Oil changes keep the engine (and sometimes the transmission, depending on design) lubricated and clean. Fresh oil helps reduce wear and prevents sludge buildup from heat and combustion byproducts.

Spoke wheels use thin metal spokes lacing the rim to the hub. They can be strong and classic-looking, but they’re also more prone to needing attention over time (like tensioning) and can develop small issues that affect ride feel.

“Mags” is slang for magnesium alloy wheels (often called alloy wheels). Compared with spoke wheels, they’re typically more rigid and can reduce wheel-related maintenance, though you still have to manage tire wear and punctures.

Tubes are inner tubes inside the tire that hold air pressure. On motorcycles with tube-type setups, punctures can require removing the tire and replacing or repairing the tube, which is more work than plugging a tubeless tire.

A 21-inch front wheel is a common chopper/cruiser size, but it can make tube work more annoying because the tire and tube are larger and harder to maneuver during repairs. That’s why puncture fixes can feel like a bigger job on tube-type 21-inch setups.

A spool wheel is a custom-style wheel where the rim is built around a hub/spacer setup that can look like a “spool,” often used on choppers. It’s part of the bike’s aesthetic, but it can also affect how tires and tubes are installed and serviced.

The front brake is the brake on the front wheel, which typically provides most of a motorcycle’s stopping power. Removing or not having one changes how the bike slows down and can make braking feel very different, especially at speed.

Many motorcycles use a foot-operated rear brake pedal. If the front brake is removed, the rider must rely more on the rear brake and foot control, which can affect braking stability and stopping distances.

Jockey shifting is a motorcycle technique where you shift gears using your foot while keeping your hands on the bars, often with minimal clutch use. It’s commonly associated with choppers and older-style riding setups where riders want quick, controlled gear changes while staying focused on balance and line choice.

A foot clutch means the clutch is operated with the rider’s foot instead of a hand lever. On some chopper builds, this can change how you coordinate clutching with jockey shifting, making the process feel more like a “footwork” technique than a hand-and-arm technique.

To “stall” means the engine stops running because it’s not getting enough power/air-fuel (or the RPM drops too low). In a manual motorcycle context, stalling often happens during clutch/gear changes or when you’re trying to balance at a stop.

A throwout bearing (also called a clutch release bearing) is part of the clutch system that helps disengage the clutch when you pull the lever. If it’s failing, it can make noise and cause rough clutch behavior—often felt most during starts and stops.

Power shifting is shifting gears without fully lifting off the throttle, keeping the engine loaded so the shift is faster and the car/bike stays in the power band. It’s commonly used in performance riding/driving to reduce time between gears and maintain acceleration.

Riding in a pack means multiple motorcycles move together closely, often coordinating around traffic lights and gaps. The speaker describes the “light changes” moment where the group accelerates together, which is a distinct technique and social dynamic compared with solo riding.

A deep tissue sprain is an injury to ligaments or soft tissue that’s more severe than a mild strain. It can cause significant pain and swelling, but it may still show “nothing broken” on an X-ray.

A clutch hub is the part of a motorcycle clutch assembly that connects the clutch components to the drivetrain. If the hub is damaged, the clutch may not engage properly, which can make the bike unrideable until it’s repaired.

“Front end” on a motorcycle usually refers to the front suspension and steering components—things like forks and related mounting hardware. If the front end is bent or “folded,” handling and safety can be compromised, so it often needs replacement or repair.

An axle is the shaft that connects a wheel to the rest of the vehicle and helps transmit drive and/or support loads. On a motorcycle, losing an axle means the wheel can’t be properly retained and the bike becomes extremely unsafe.

The swing arm is the motorcycle’s rear suspension arm that pivots to allow the rear wheel to move up and down. It also helps locate the rear axle, so securing the axle to the swing arm is critical for wheel retention.

A metal-on-metal sound while riding is a common sign that something has come loose or is contacting where it shouldn’t. In this segment, that noise leads to the diagnosis of a loosened brake caliper bracket and subsequent brake-line damage.

A brake caliper is the clamp that squeezes brake pads against the rotor/disc to slow the motorcycle. If the caliper mount or bracket loosens, the caliper can swing and the brake line can get ripped out, causing near-total loss of braking.

A brake line carries hydraulic fluid from the master cylinder to the brake caliper. If a brake line is ripped out, hydraulic pressure drops and the brakes can fail suddenly.

Countersunk screws have a tapered head designed to sit flush (or nearly flush) with the surface. That shape can be useful for clearance, but the screws still need secure fastening to prevent loosening from vibration.

Safety wiring is a method of locking fasteners (like screws/bolts) so they can’t back out from vibration. It’s commonly used in motorsports and on motorcycles where parts see constant shaking.

“Trial by fire” is a metaphor for learning through tough real-world stress. In car/motorcycle contexts, it often means components are tested by vibration, heat, and use until weak points show up—like rattling loose or breaking.

A shift lever is the linkage you move to select gears. A “ratchet top” style shift lever uses a ratcheting mechanism so the lever clicks into position, which can help prevent accidental movement or looseness over time.

Main Drive is referenced as the brand/company behind transmission building work. In this context, it’s tied to custom transmission assembly and sealing efforts to reduce leaks.

Seals are the rubber or composite sealing components that keep fluids from leaking out of the transmission or engine. The speaker describes using “different seals and tricks” to make the transmission leak-proof, and later suspects one of the seals may be allowing seepage.

A sand dunes route implies driving in soft, loose sand where traction is inconsistent and vehicles can sink or get stuck. It usually calls for lower speeds, careful throttle control, and sometimes off-road tires or a vehicle setup meant for sand.

Switchbacks are a road design where the route zigzags back and forth up or down a steep grade. Drivers typically slow down on them because the turns are tight and the direction changes repeatedly.

Off-road describes driving on unpaved or rough terrain where the car’s normal street setup may not work well. In places like sand dunes, off-road driving often changes how you manage traction and vehicle control.

Potholes are damaged spots in the road surface that can be deep enough to jolt a vehicle or wheel. On rough highways, they can be especially risky for wheels and tires because impacts can bend rims or damage suspension components.

“Rim benders” is slang for bending or damaging wheel rims from impacts—commonly from potholes, debris, or aggressive curb hits. When rims deform, you can get vibration, poor tire sealing, and faster tire wear.

A temporary visa is short-term permission to enter a country for a specific purpose and duration. In this context, the speaker is describing paperwork for bringing a bike into Mexico and how they were supposed to obtain a short, seven-day entry authorization.

Sturgis refers to Sturgis Motorcycle Rally in South Dakota, one of the biggest annual motorcycle events in the U.S. Riders often plan trips around it, and it’s known for large crowds, custom bikes, and riding culture.

Daytona here is about riding to Daytona for motorcycle culture and events. The speaker specifically mentions camping and emphasizes that the weather can be cold, contrasting expectations with what they saw in “Daytona paintings.”

The hosts discuss route choice for motorcycle trips—preferring secondary roads and planned stops over fast interstate travel. The idea is that a slower, more intentional route can be more fun and less tiring than simply trying to arrive quickly.

They describe a trip pacing strategy: stopping frequently for fuel and taking breaks rather than riding continuously. This kind of planning helps manage fatigue and keeps the ride enjoyable over long distances.

The speaker is describing how long-distance motorcycle travel changes when you shift from “covering miles” to “enjoying the route.” Interstate-style pacing often means frequent fuel stops and less time for sightseeing, while slower pacing builds in stops for photos, food, and camping.

A wheelie is when the front wheel lifts off the ground during acceleration. On dirt drags, wheelies can happen more easily due to reduced traction, but they also risk losing control or traction in the rear.

Dirt drags are drag races run on dirt or loose-surface tracks instead of asphalt. Because traction changes constantly, launches and straight-line stability can be unpredictable compared with typical drag racing.

Born Free Texas is an event where motorcycle builders, riders, and photographers gather to show off custom bikes and ride. In this segment, it’s referenced as the setting for the dirt-drag discussion and the weather-related issues near the end of the run.

A vehicle’s charging system keeps the battery topped up and powers electrical loads while the engine is running. When someone says they “changed the charging system,” they typically mean replacing components like the alternator and/or related wiring/voltage regulation parts.

A carburetor is a fuel-delivery device that mixes air and gasoline before it enters the engine. The speaker mentions running “just a carburetor” and then putting “jets” back to factory settings, which is classic carburetor tuning/jetting behavior.

In a carburetor, jets are small calibrated fuel passages that control how much fuel is delivered at different throttle/engine conditions. “Factory jets” means the original jet sizes/specs the manufacturer designed for the engine, while swapping jets is a common way to tune mixture and drivability.

CV carbs stands for constant-velocity carburetors, which use a vacuum-controlled slide to meter airflow smoothly. That design can make throttle response feel different from other carb types, and it affects how easy (or hard) a carb is to tune on a custom application.

Carb support refers to the mounting/bracketing used to hold a carburetor securely to the engine. Some engine cases have different bolt patterns, so the usual support method may not fit and you may need custom work to mount the carb correctly.

“Way too fat” is tuning slang meaning the fuel mixture is too rich—too much fuel relative to air. On a carb setup, an overly rich accelerator-pump shot can cause heavy fuel consumption and poor range until it’s readjusted.