Key Figures · Companies · Maker

ADA Racing

Maker of a billet cylinder head with replaceable domes that Personal Watercraft Illustrated fitted and tested on a Kawasaki Ultra 150 in 2000; its own page places it in Chandler, Arizona.

• a year printed above a fact on this page
• a year printed above no fact

Printed above the facts, 1996, 1997, 2000, 2003 and 2004. Printed above none, 1998, 1999, 2001 and 2002. 1 fact has no year printed above it and marks no box.

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What it made and sold

1996 · Likely

Splash's June 1996 feature on a race replica of a Sea-Doo HX lists an ADA head in the replica's motor package. Reading that ADA as this company rests on the name and the part.

Sources: Splash June 1996

1997 · Likely

Group K's comments of 1997 on magazine articles discuss a Personal Watercraft Illustrated article of March 1997 on installing an ADA head on a Sea-Doo, and mention ADA's view that 43cc domes suit most stock motors and a headpipe gasket supplied by ADA. The archive reads the Group K ADA as this company from the name and the part, an inference.

Sources: Group K Between the Lines 1997

2000 · Likely

Personal Watercraft Illustrated's test, on a page the Wayback Machine captured on 11 May 2000, fitted an ADA Racing cylinder head to a Kawasaki Ultra 150, beside a Buckshot Racing carburettor kit: a one-piece head shell machined from 6061-T6 aluminium, with replaceable combustion chamber domes and O-ring seals in place of a head gasket. ADA Racing shipped the head and 44cc domes for the test, and the magazine says it offers other domes, custom ones included, on request.

Sources: PWI 2000 Buckshot and ADA test

Likely

The company's own page, as read on 5 October 2026, says it designs and makes everything in house in Chandler, Arizona, with no retail store and no repair work, and lists billet heads, cylinders, domes and girdle kits among its personal watercraft parts. The archive reads that page as the same company from the name, an inference. The year it gives for buying its first Haas machine, 1996, is not a founding date.

Sources: ADA Racing About page

Patents and trademarks

2003 and 2004 · Likely

USPTO records ADA RACING, applied for on 2 July 2003 by ADA Inc., an Arizona corporation, and registered on 20 July 2004 for motorized scooters and their parts; it was cancelled in 2011 when no declaration of continued use was accepted. First use, by the registrant's own claim, was 1 January 1995. The archive reads the mark as this company's from the name, the state and the scooter parts the company's own page sells, an inference.

Sources: USPTO record serial 78269540; ADA Racing About page

Elsewhere in the archive

• History chapter: The aftermarket: exhaust pipes and engine parts
• Era: The makers and their machines
• Era: The rule book years

What the archive has not read (2)

• No independent document dates the founding of ADA Racing (searched the archive's mirror and research cache, 2026-10-18).
• No held document says when the company came to Chandler or where it worked before (searched the archive's mirror and research cache, 2026-10-18).

Documents cited on this page

• PWI 2000 Buckshot and ADA test (web.archive.org): Test: Buckshot Racing/ADA Racing Kawasaki, Making the fastest, faster, by Jeff Hain (Personal Watercraft Illustrated, 2000; Wayback capture), Personal Watercraft Illustrated, 2000; enthusiast media, medium. The magazine's test of a Kawasaki Ultra 150 fitted with an ADA Racing billet-aluminium cylinder head with replaceable domes and a Buckshot Racing BRM carburettor kit (three 50mm billet carburettors, billet manifolds and Pro Lite Power Filters), installed at Buckshot Racing's shop in Brea, California, with radar speeds. Captured on 11 May 2000; the page address reads as volume 14 number 3, and the text names the December 1999 issue and a test around New Year, so the issue is of 2000. Medium: an independent magazine test; its praise and prices are not used. The held copy is an excerpt, without the site menu.
• Splash June 1996 (held here, not public): Riding A Rocket, Splash, June 1996, pages 40 to 42 (our transcription of the owner's printed copy), Splash magazine, 1996-06; enthusiast media, medium. A period magazine feature on a race replica of Chris Fischetti's Sea-Doo HX, read from phone photographs of the owner's printed copy on 26 August 2026 and transcribed in our own record, already held here, so it is kept there rather than copied. The modification package and two short phrases are verbatim; the record's account of the article's running text is a summary in the transcriber's words, so a page restating it says so. The magazine has no public address, so the article is held here only. The continuation on page 44 was not read.
• Group K Between the Lines 1997 (groupk.com): Between The Lines - January 97 to December 97 (Group K, groupk.com), Group K, 1997; enthusiast media, medium. The same shop's comments on the technical items in the PWC magazines of 1997, issue by issue, kept on its site under the heading January 97 to December 97. Read on 2026-10-05 and held as text; the page is current and no earlier capture is held, so the dating rests on the heading and the issue-by-issue layout. Medium as a trade participant's period commentary, cited only for which products it names as existing.
• ADA Racing About page (adaracing.com): About Us (ADA Racing page, read 2026), ADA Racing; manufacturer primary, medium. The company's own page, as read on 5 October 2026: in-house design and manufacturing in Chandler, Arizona, no retail store or repair service, and a menu of watercraft part categories. Medium for what it says the company does now; it gives no founding year, and the date of its first machine tool is not a founding date.
• USPTO record serial 78269540 (tsdr.uspto.gov): Trademark Status and Document Retrieval record, serial 78269540, registration 2865138 (ADA RACING), United States Patent and Trademark Office, 2004-07-20; government, high. ADA RACING with a shaded-rectangle design, RACING disclaimed, filed 2 July 2003, registered 20 July 2004 for motorized scooters and their structural parts (wheels, decks, brakes, clutches, chain tensioners, forks, sprockets, frames and others); cancelled on 25 February 2011 when no acceptable Section 8 declaration was filed. Owner ADA Inc., an Arizona corporation; its address and the correspondent's details are omitted from the held copy. The registrant claims first use on 1 January 1995. No watercraft goods. The published date is the registration date.

Cite this page

“ADA Racing”, BaddJet archive, https://baddjetarchive.com/key-figures/companies/ada-racing/

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