FactoryZ · Install & Troubleshooting

Yozma IN 10 & IN 10 Pro
Setup, First Ride & Troubleshooting

Yozma · IN 10 / IN 10 Pro~7 min readWorkshop-verified

The Yozma IN 10 ships mostly assembled. The standard IN 10 and the IN 10 Pro share the same controller, dashboard, and E-code system — they differ in battery, power, and top speed — so this guide covers both and calls out the differences. Built straight from the official IN 10 and IN 10 Pro owner’s manuals. No fluff, no guessing.

Out of the Crate

Following the manual’s assembly steps, you’ll fit the front wheel (axle through the tire and bushings), the front brake, the rear shock absorber, the fenders, and the number plate and front light. Motor, controller, and battery ship installed. Inventory the box against the parts list and inspect the frame, fork, and wheels for shipping damage before you build.

Know which bike you have — both share the same fault codes and torques, but the numbers differ. The IN 10 runs a 2600 W motor, a 54 V / 23.4 Ah pack, and a 40 mph top speed (55 kg, 72 cm seat). The IN 10 Pro steps up to a 4500 W motor, a 60 V / 27 Ah pack, and a 47 mph top speed (65 kg, 78 cm seat). Both are rated to a 120 kg maximum load.

First-Ride Setup Checklist

Charge to 100% first.

Charge fully before the first ride with the included charger. The manual lists about 5–6 hours for the IN 10 and 6–7 hours for the IN 10 Pro. A full charge sets an honest range baseline.

Set tire pressure.

Check both tires are at the correct PSI before you ride — low rear pressure is a common cause of short range and sluggish running in the manual’s own troubleshooting.

Torque the critical fasteners.

Shipping vibration loosens hardware. Torque the fasteners below to the manual’s figures with a torque wrench — don’t eyeball it.

Check the brakes.

Squeeze each lever: the brake must cut motor power and stop the wheel in time, with firm tension. Adjust or bleed before riding if the bite is soft.

Bed the brake pads in.

From a safe roll, make 20–30 progressive stops, light to firm, without locking up, to lay an even layer of pad material onto the rotor.

Function-check before you send it.

Power on and confirm the dashboard shows charge and no error indicator. The bike starts in 1st gear (ECO); it has 3 gears switched from the dashboard buttons. Don’t ride in high gear until you’re ready.

Torque-Critical Fasteners

The owner’s manual prints torque figures for the fasteners that matter most on assembly. Torque each one to the manual’s figure with a torque wrench — don’t eyeball it:

Front axle nut — 40–50 N·m
Front brake disc bolts — 10 N·m
Rear shock absorber bolts — 40–50 N·m
Fender, number-plate & front-light screws — tighten per the manual
Handlebar & control clamps — tighten per the manual

▲ READ The manual gives 40–50 N·m for the front axle nut and rear shock bolts and 10 N·m for the front brake-disc bolts. For the fasteners it doesn’t assign a number, tighten securely and re-check after the first ride — the brake and axle hardware especially.

How the Yozma IN 10 Reports Faults

The IN 10 and IN 10 Pro report vehicle status and faults as an E-code on the dashboard — E00 means normal operation. When something trips, the dash shows the matching code; read it and match it to the manual’s table below. Both variants use the same display and the same code set.

E00 — Normal status
E01 — Reserved
E02 — Brake Error
E04 — Walk Assist Mode
E05 — Real-Time Cruise
E06 — Low Voltage Protection
E07 — Motor Error
E08 — Throttle Error
E09 — Controller Error
E10 — Communications Error
E12 — BMS Communications Error
E13 — Front Light Error

▲ READ This is the manual’s full status-code list exactly as printed — E00 is normal operation, and the dashboard shows only the codes listed above. The same chart lives on our manuals & diagnostics page. Always turn the bike off before inspecting the wiring behind a code.

The 6 Most Common Faults

1 · Bike won’t start or run

Likely: Per the manual: a flat battery, or loose / poorly plugged wires and cables. A deep-discharged pack can also show low-voltage protection E06.
Fix: Fully charge the battery, then check that every cable is firmly plugged into the controller. Confirm the dashboard shows charge before riding.

2 · Brake Error (E02)

Likely: E02 Brake Error: the controller sees the brake input engaged or a brake-cutoff signal fault, so it holds power.
Fix: Check the brake levers return fully and aren’t binding, and inspect the brake cut-off switch and its connector. The brake must cut power cleanly when squeezed.

3 · Throttle Error (E08)

Likely: E08 Throttle Error: a bad throttle signal or a throttle that isn’t returning to zero.
Fix: Make sure the throttle snaps fully closed on its own and re-seat its connector, then power-cycle. If E08 returns, replace the throttle.

Yozma IN 10 dashboard showing error code E08, a throttle fault — E08 — throttle error on the IN 10 dash. Confirm the throttle returns to zero, then re-seat its connector before riding.

4 · Motor Error (E07)

Likely: E07 Motor Error: a fault in the motor or its signal wiring between motor and controller.
Fix: Inspect the motor phase and sensor connectors for a loose pin, corrosion, or water. If the motor and wiring test good, the fault is usually internal and needs service.

5 · Low Voltage Protection (E06)

Likely: E06 Low Voltage Protection: the pack has dropped too low and the controller is protecting it; the bike won’t run at full speed or at all.
Fix: Charge the pack fully. If it won’t hold a charge, the battery may be at end of life — the manual notes a typical 1–2 year battery lifespan.

6 · Communications / BMS Error (E10 / E12)

Likely: E10 Communications Error or E12 BMS Communications Error: the dashboard, controller, and battery have lost their data link.
Fix: Turn the bike off, then re-seat the connectors between the dashboard, controller, and battery and dry out any moisture before retrying.

▲ STOP A Controller Error (E09) or BMS Communications Error (E12) that returns after re-seating connectors, or anything that calls for opening the battery or controller, is service and warranty territory — major parts are labeled and warranted; unlabeled parts are not. Don’t force it.

Build It Right

Most Yozma complaints trace back to tired brakes and worn consumables. We stock the upgrade hardware that fixes both, plus the parts that take the abuse — in stock, shipped from the US.

Yozma Ebike Parts Brake Pads Yozma Foot Lock Error Code Charts

Frequently Asked

What do the error codes on my Yozma IN 10 mean?

The IN 10 and IN 10 Pro show an E-code on the dashboard: E00 normal, E02 Brake Error, E06 Low Voltage Protection, E07 Motor Error, E08 Throttle Error, E09 Controller Error, E10 Communications Error, E12 BMS Communications Error, and E13 Front Light Error (E04 is Walk Assist and E05 is Real-Time Cruise). Match the code to the table to find the cause.

Why won’t my Yozma IN 10 turn on or run?

The manual points to two things first: a battery that isn’t charged, and loose or poorly plugged cables. Fully charge the pack (about 5–6 hours for the IN 10, 6–7 for the IN 10 Pro) and check every cable is firmly seated in the controller. A deep-discharged pack can also show E06 low-voltage protection.

What’s the difference between the Yozma IN 10 and IN 10 Pro?

They share the same controller, dashboard, and E-code system, so they troubleshoot the same. The IN 10 runs a 2600 W motor, a 54 V / 23.4 Ah pack, and 40 mph; the IN 10 Pro runs a 4500 W motor, a 60 V / 27 Ah pack, and 47 mph. Both are rated to a 120 kg load.

What are the Yozma IN 10 torque specs?

The manual gives 40–50 N·m for the front axle nut, 10 N·m for the front brake-disc bolts, and 40–50 N·m for the rear shock-absorber bolts. For the fasteners it doesn’t assign a number, tighten securely and re-check after the first ride.

What does Yozma error E08 mean?

E08 is a Throttle Error — the controller saw a bad throttle signal or a throttle that didn’t return to zero. Make sure the grip snaps closed on its own, re-seat the throttle connector, and power-cycle; replace the throttle if the code returns.