John Salt Courses

How Anti-Spark Connectors Work and Their Importance in RC Applications

Explore anti-spark XT90S connectors for RC LiPo batteries: installation, benefits, and how they eliminate sparking, pitting, and carbon tracing in high-power RC vehicles.

• YouTube
• 11 minutes
• Self-Paced
• Free Video

Parts Washer Pump Replacement - Know About Dissolving Pumps

Discover why modern parts washer pumps dissolve in petroleum solvents and learn to upgrade with a diesel transfer pump for reliable, solvent-safe operation.

• YouTube
• 13 minutes
• Self-Paced
• Free Video

Porsche Vent Foam Repair - Both Blend Doors Through The Heater Core

Master a less intrusive DIY method to fix disintegrating HVAC foam in Porsche 996/997/986/987 models by accessing blend doors through the heater core without cutting the plenum.

• YouTube
• 29 minutes
• Self-Paced
• Free Video

How to Fit a Balance Plug Protector - AB Clip to Your LiPo Batteries

Learn to install balance plug protectors (AB clips) on LiPo batteries for safer unplugging and wire strain relief in this practical RC helicopter tutorial.

• YouTube
• 11 minutes
• Self-Paced
• Free Video

Hour Meter for Electric Motors - Easy Hour Meter Installation

Learn to install low-cost hour meters on electric motors and devices for accurate runtime tracking and maintenance scheduling with simple parallel wiring techniques.

• YouTube
• 12 minutes
• Self-Paced
• Free Video

AC Start Capacitor Replacement - A Step-by-Step Guide to DIY HVAC Repair

Learn how to diagnose and replace a faulty AC or heat pump start capacitor in 4 simple steps, saving money on service calls while ensuring your system runs efficiently and effectively.

• YouTube
• 12 minutes
• Self-Paced
• Free Video

Tuff Torq K46 Fluid Change - Two Methods, Best Oil to Use and Tips

Master Tuff Torq K46/T40 hydrostatic transmission maintenance with two fluid change methods, optimal oil selection, and expert tips to extend your riding mower's transmission life.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Wireless Total Stop System vs Pressure Switch TSS for Pressure Washers - A Comparison Guide

Discover how wireless total stop systems work in pressure washers, their installation process, and advantages over traditional pressure switch systems for better pump longevity and performance.

• YouTube
• 21 minutes
• Self-Paced
• Free Video

Parts Washer Pump Update and Installing Variable Flow Control

Upgrade your parts washer with a reliable submersible fuel pump and add variable flow control using an inexpensive PWM speed controller for enhanced performance.

• YouTube
• 10 minutes
• Self-Paced
• Free Video