KIRBY - HK25 and HK30 Engines #84694 21/04/17 02:40 PM
Joined: Nov 2013 Posts: 6,938 Likes: 308 Tasmania CyberJack Forum Historian
Hello ODK History Lovers Kirby engines were a popular choice for lawnmower manufacturers in the 1960s and 1970s. Made under licence from North American Tecumseh, they would power Australian-made rotary and reel mowers in vertical and horizontal shaft configurations. This article discusses the most popular small horizontal shafts - the HK25 and HK30 engines. Many enthusiasts would know these engines powered the early Victa Imperials, Rover Thoroughbreds, and Scott Bonnar Model 45s. TO BE CONTINUED ...
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Re: KIRBY - HK25 and HK30 Engines CyberJack #84695 21/04/17 03:03 PM
Joined: Nov 2013 Posts: 6,938 Likes: 308 Tasmania CyberJack Forum Historian
PART TWO - Specification The small HKs were 125cc with alloy crankcase and cylinder. The cylinder had a alloy cast iron or sintered iron sleeve. They were mechanically governed and had a ball bearing on the PTO side. These were quality engines, many still being used regularly today. Attachments kirby_hk_specification.pdf (406.04 KB, 228 downloads) KIRBY TECUMSEH HK30 Specification
1 member likes this: Ozlap

Re: KIRBY - HK25 and HK30 Engines CyberJack #84696 21/04/17 03:08 PM
Joined: Nov 2013 Posts: 6,938 Likes: 308 Tasmania CyberJack Forum Historian
PART THREE - Operating Manual This 1970 Operating Manual is from my collection and covers the HK25, HK30 and HHK40. As always, it is available as a download for personal use. Attachments kirby_hk_operating_manual.pdf (934.16 KB, 251 downloads) KIRBY OPERATING MANUAL - HK25 HK30 HHK40
1 member likes this: Haidz

Re: KIRBY - HK25 and HK30 Engines CyberJack #84697 21/04/17 03:13 PM
Joined: Nov 2013 Posts: 6,938 Likes: 308 Tasmania CyberJack Forum Historian
PART FOUR - Parts Manual - Scott Bonnar This mid-1970s Parts List is from Scott Bonnar. It is a handy list because it includes both the SB and Kirby part numbers. As always, it is available as a download for personal use. Attachments kirby_hk_sb_parts_manual.pdf (1.51 MB, 281 downloads) KIRBY HK25 HK30 PARTS LIST (SCOTT BONNAR)
3 members like this: Random Brad Creator, Haidz, HedgeHippo19

Re: KIRBY - HK25 and HK30 Engines

CyberJack #108726 27/09/20 09:44 PM

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