The Husqvarna 45 chainsaw was manufactured by Husqvarna Vapenfabriks AB in Huskvarna, Sweden, and was introduced in 1987. It quickly became a popular choice among both professional and amateur users due to its reliable performance and lightweight design.
The chainsaw was constructed with a die-cast magnesium and injection-molded polymer body, weighing in at just 4.7 kg (10.8 lbs.) for the powerhead only. The manufacturer advertised H.P. for the 44ccm (2.7 cu. in.) engine was 2.7 hp (2.0 kW), making it a powerful tool for its size. The Husqvarna 45 chainsaw was equipped with a centrifugal clutch, an anti-vibration handlebar system, and an inertia-activated chain brake for added safety. It was also designed with an automatic oil pump, which made maintenance and operation easier for users.
The Husqvarna 45 was discontinued in 1995, leaving behind a legacy of quality and durability that endures to this day.
Specifications Chart
| Specification | Value |
|---|---|
| Manufactured by | Husqvarna Vapenfabriks AB, Huskvarna, Sweden |
| Year introduced | 1987 |
| Year discontinued | 1995 |
| Engine displacement | 44ccm (2.7 cu. in.) |
| Cylinder bore | 42mm (1.65 in.) |
| Piston stroke | 32mm (1.26 in.) |
| Piston ring thickness | 1.5 mm |
| Cylinder type | Aluminum with chrome plated bore |
| Intake method | Piston ported |
| The manufacturer advertised H.P. | 2.7 hp (2.0 kW) |
| Weight | 4.7 kg (10.8 lbs.), powerhead only |
| Handlebar system | Anti-vibration |
| Chain brake | Inertia activated |
| Clutch | Centrifugal |
| Drive Type | Direct |
| Construction | Die-cast magnesium, injection-molded polymer |
| Magneto type | Electronic, Phelon |
| Carburetor | Walbro WT-17A, 17D, Zama C1Q-EL1, C1Q-EL5 |
| Major repair kit | K20-WAT for Walbro, RB-45 for Zama |
| Minor repair kit | D10-WAT for Walbro |
| GND-33 for Zama | |
| Air filter system | Nylon mesh cartridge |
| Starter type | Husqvarna automatic rewind |
| Oil pump | Automatic |
| Maximum engine RPM | 12,500 max free after break-in, with bar and chain |
| Maximum engine RPM 2 | Installed, 9,000 under load. |
| Idle RPM | 2,500 |
| Ignition timing | Fixed |
| Breaker point setting | None |
| Flywheel/coil air gap | 0.30 mm (0.012 in.) |
| Spark plug type | Bosch WSR7F/WS7F, NGK BPMR7A, Champion RCJ7Y |
| Spark plug gap | 0.5mm (0.020 in.) |
| Crankshaft main bearings | Ball |
| Fuel tank capacity | 500 ml (16.9 fl. oz.) |
| Fuel oil ratio | 50:1 |
| Recommended fuel octane | Regular |
| Mix oil specification | Husqvarna two-stroke chainsaw mix oil or equivalent |
| Oil Mix | 50:1 with Husqvarna mix oil |
| Chain pitch | .325 in. |
| Chain type | Oregon 21 |
| Bar mount pattern | 01 link |
| Shortest guide bar supplied | 33cm (13 in.) |
| Longest guide bar supplied | 46cm (18 in.) |
| Color scheme | Husqvarna orange |
| Illustrated parts list | Yes |
| Workshop Manual | Yes |
In conclusion, the Husqvarna 45 chainsaw was a reliable and efficient tool introduced in 1987 and discontinued in 1995. With its lightweight construction, anti-vibration handlebar system, and powerful 2.7 horsepower engine, the Husqvarna 45 was a popular choice for both professional and home users. Its durable die-cast magnesium and injection-molded polymer construction, automatic oil pump, and nylon mesh cartridge air filter system made maintenance and repair easy.
Whether used for cutting firewood or clearing trees, the Husqvarna 45 chainsaw was a dependable and versatile tool that served its users well during its production years.