Machining for double spark plugs in a shovel-head

This video showcases various specialized machines and techniques used by Dragonman for intricate Harley-Davidson engine modifications. It details processes like cutting down cylinders for compression adjustments, shaving flywheels for faster acceleration, repairing cracked engine cases with custom-fit sections, and performing dual spark plug installations. The instructor demonstrates precise machining for valve seats, connecting rod rebuilding, and cylinder honing, highlighting the efficiency and accuracy of his workshop equipment.

This video details advanced motorcycle engine rebuild and modification techniques, focusing on Shovelhead engines. Dragonman, an experienced mechanic and business owner, explains flywheel lightening for higher RPMs, dual spark plug head modifications, and camshaft lift considerations. The content highlights the shop's capability to perform comprehensive engine services, including pricing for basic rebuilds to fully tuned assemblies.

This video demonstrates the process of installing dual spark plugs in Harley Davidson motorcycle heads. The creator provides a visual guide showcasing the equipment used and the installation steps. They also offer their services for similar custom work, inviting viewers to contact them with their specific project needs and discuss pricing and logistics for shipping parts in for modification.

This video demonstrates a specialized machining process to install dual spark plugs into Holley heads, a modification aimed at improving fuel combustion efficiency. The presenter, Dragonman, details the steps involved in precisely milling a new seat for a 9/16-14 millimeter spark plug, drilling the hole, and tapping the threads. This technique is presented as a solution for engines running on high-methanol fuels that can lead to carbon buildup.

This video provides an in-depth look at Harley-Davidson engine and transmission rebuilds performed by Dragonman at his machine shop. It details the history and identification of various Harley engine models, including Knucklehead, Panhead, Shovelhead, and Evolution. The guide covers common repair issues like bent shifter forks and broken exhaust ports, offering expert solutions such as welding replacement ports and installing steel race inserts into transmission cases. Specific instructions are given for packing engine components for shipping and the high-quality parts used in rebuilds, emphasizing the advanced skills required for these tasks.

This guide details critical steps for rebuilding Harley-Davidson Evolution engines, focusing on common pitfalls. It covers correctly installing cam covers by matching pinion shaft bushings to the correct model year to ensure proper oiling of connecting rods. The guide also provides detailed instructions on bleeding and adjusting hydraulic lifters, emphasizing the importance of an oil-free lifter for accurate adjustment and preventing valve damage. Additionally, it addresses spark plug selection for dual-plugged engines and correct head gasket and piston orientation for Sportsters.

This guide details the process of loading belt-fed machine gun ammunition using a vintage WWII .50 caliber linking machine, as demonstrated by Dragonman at the Dragon Arms Museum. It covers the manual steps of aligning links and cartridges and securing them with the machine's lever. The video highlights Dragonman's expertise with historical military equipment and large-scale ammo preparation.

Dragonman's Gun Store received a massive delivery of firearms and ammunition. The video highlights various handguns like the Ruger 57, FN 509, Glock 19X, and M&P Shield EZ, alongside AR-15 style rifles including the Smith & Wesson M&P 15 and Ruger AR-556. A 12-gauge bullpup shotgun and optics like the Sig Sauer Romeo 3 are also featured. The store emphasizes its wide ammunition inventory and compliance with Colorado's magazine capacity laws.

This guide outlines a home defense strategy emphasizing immediate firearm accessibility, as demonstrated by Dragonman, a Class III Dealer with high expertise in NFA firearms. It covers the strategic placement of various firearms, including handguns, shotguns, and heavy machine guns, within the home for rapid deployment. The content also includes a strong recommendation against using traditional gun safes for home defense due to access time concerns, highlighting the importance of readiness in critical situations.

This entry details the process of manufacturing and testing machine guns, as demonstrated by Dragonman. It covers essential steps from using specific receivers and complying with ATF regulations, including licensing and registration, to live fire testing of various full-auto firearms like the M16, AK-47, and M2 Browning. The guide emphasizes the importance of proper marking and adherence to legal requirements for firearm production.