Multi-purpose two-stroke

AG-2R Engine: Rotary Valve DIY Build Guide

The journal has already reported on the advantages of rotary valve gas distribution in two-stroke internal combustion engines («M-K» No. 11 for 1974 and No. 10 for 1977). Here are their advantages in brief: achieving the highest specific power and fuel economy of the engine, improving starting and simplifying the cylinder design (no intake ports Read more…

Wheels under control

Camber and toe-in adjustment at home: DIY angle gauge

Camber and toe-in of a passenger car’s wheels can be adjusted very accurately without going to a service station. You only need some basic metalworking skills and simple tools to make your own set of devices for this adjustment—simple and convenient to use. Consider as an example the VAZ 21063. The distance between the centres Read more…

Frost tests the tires

Winter Tire Studs: Bozhko & Zakrevsky DIY Designs

Winter has arrived, and the flow of motor vehicles on the highways of our country has noticeably thinned. The fleet of cars and motorcycles belonging to individual owners is almost completely put away for the winter. There are many reasons for this, but one of the main ones is the mismatch between automotive “footwear” — Read more…

Vehicle microclimate

Oka Car Winter Preheater: DIY Coolant System, Schematic & Build

Many motorists, especially owners of domestic cars, have experienced all the “joys” of winter operation of their beloved “steeds” firsthand. A particular “pleasure” is bringing the heart—the “fiery engine”—back to life after a frosty night. I own a giant of Russian automaking—the Oka—so all my thoughts and efforts went into developing a system that would Read more…

With forced air

Schematic diagram of the under-hood fan power supply

With the help of articles in the magazine «Modelist-Konstruktor», I built myself a universal power tiller based on a Minsk motorcycle. It turned out to be a good, hard-working mechanical helper. Its basis, of course, is the standard motorcycle frame, shortened (as recommended by the magazine) and fitted with the power unit and a two-stage Read more…

TO PREVENT CARS FROM RUSTING

TO PREVENT CARS FROM RUSTING

Rust is enemy number one of almost any metal. The “red plague” that with enviable persistence and constancy turns hundreds of thousands of tons of sparkling high-grade, high-strength, alloyed steel into heaps of brown powder. A disease for which there are no barriers… But there are remedies for it: galvanic coatings, varnishes and paints, bitumens Read more…

With a sidecar and a trailer

Homemade trailer for motorcycle with sidecar: track-for-track

I read in the magazine «Modelist-Konstruktor» No. 12, 1992, A. Tatarnikov’s article «Obedient trailer». It suggested a solution to what at first glance seems a rather ordinary, but on closer look almost unsolvable problem: how to fit a motorcycle with a sidecar with a trailer that would follow it track-for-track? The idea of building a Read more…

AERODYNAMICS — TO THE CARBURETOR!

AERODYNAMICS — TO THE CARBURETOR!

Few car owners do not try to improve their consumer qualities. The most extensive field of activity for auto-rationalizers is the power plant. From time to time, publications appear about gaskets, attachments, or additives that increase engine life, optimize fuel consumption, reduce exhaust toxicity… Our Ukrainian reader proposes an aerodynamic attachment for the carburetor. He Read more…