Dedicated Subsystem WorkbenchPlatform Gen: 2020–2025

2023 KTM 300 XC Valve Clearance Specs & Shim Calculator

Cold valve clearance specs for 2023 KTM 300 XC: intake mm, exhaust mm, inspection intervals and replacement shim calculator.

Technical PassportOEM VERIFIED

Engine

293.2cc

Cooling

Not Available

Final Drive

520 Chain

Engine Oil

0.80 L (0.85 US qt) Periodic Gearbox Oil Change

Spark Plug

NGK ZGR7GI-13G / BR7ES

Front Tire

80/100-21 51M

Gen 2020–2025

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2020 through 2025.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available

1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2023 KTM 300 XC.

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Select Model Year:(Active: 2023)
6 Production Years (2020–2025)

2020 2021 2022 2023 2024 2025

Suggested Items4 Verified Workshop Consumables Available for this Job

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Factory Valve Clearance & Shim Calculator

OEM Workshop Tolerances

Cylinder head valve lash specifications, timing TDC mark alignments, and interactive replacement shim calculation engine.

Adjustment Mechanism: Not Applicable (2-Stroke Electronic/Mechanical Exhaust Power Valve & Reed Block)

Active Valve Range (INTAKE)

1.90 - 2.00 mm Squish / Deck X-Dimension (0.00 mm on 2023+ TBI Flush Deck)

0.000 in Piston Crown Flush with Cylinder Top Deck

Nominal Mid-Spec Target

0.15 mm

Ideal cold lash assembly setting

Shim Diameter / Tappet

Not Applicable (2-Stroke Electronic/Mechanical Exhaust Power Valve & Reed Block)

Bucket-and-shim interface

Measurement Condition

Cold Engine (≤ 35°C / 95°F)

TDC compression stroke only

Interactive Shim Sizing Calculation Engine: New Shim = Current Shim + (Measured Clearance - Target Clearance)

1. Feeler Gauge Measured Clearance (mm)

Factory intake tolerance: 1.90 - 2.00 mm Squish / Deck X-Dimension (0.00 mm on 2023+ TBI Flush Deck)

2. Currently Installed Shim (mm)

Measured with micrometer or read laser-etched face

TDC Crankshaft Timing Index

On 2023+ TBI models, run electronic exhaust power valve calibration cycle after top-end reassembly

Feeler Gauge Technique

Verify Piston Ring End Gap (0.40–0.55 mm) inside 72.00 mm Nikasil bore and check cylinder base gasket stack thickness for X-dimension deck height

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

No Active Federal Safety Recalls Reported

The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2023 KTM 300 XC platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

Explore Other Subsystems for this 2023 KTM 300 XC

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Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

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Subsystem Guide/fluids

Fluids & Capacities

Oil: 0.80 L (0.85 US qt) Periodic Gearbox Oil Change • Coolant: 1.20 L (1.27 US qt) • Brake: DOT 4 / DOT 5.1 Brake Fluid (Brembo Brakes & Brembo Hydraulic DDS Clutch)

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Subsystem Guide/fuses-relays