Yamaha model line
WaveJammer (WJ500)
The Yamaha WaveJammer (WJ500) is recorded for four consecutive model years, 1987 to 1990. Every WaveJammer (WJ500) year on record is a carburetted two-stroke, with the engine recorded as 500.
At a glance
- Years made
- 1987 to 1990
- Engine, as the records hold it
- 500
- Strokes
- Two-stroke
- Fuel system
- Carburettor
- Hull type
- Stand-up
- Model years on record
- 4
- Checked
- None of the four WaveJammer (WJ500) model years verified, which needs a check against the maker's own document, which the row names, and an engine figure; all four name a source below.
Some Yamaha numbers are measured sizes rather than the number in the model name: a GP760 is held as 753, a GP1200R as 1131, a GP1300R as 1296. None of these figures has been checked against a Yamaha document unless a cited source states it.
The Yamaha WaveJammer (WJ500) from 1987 to 1990, one square for each model year, a decade to a row; follow a square to its row.
How we know: The 4 WaveJammer (WJ500) rows in the year table, with each row's grade and the engine cells it prints in bold.
Year by year
| Model year | Engine, as the records hold it | Fuel system | Strokes | Hull type | What the record says | Source |
|---|---|---|---|---|---|---|
| 1987 | 500 | Carburettor | Two-stroke | Stand-up | US model code WJ500H. | Source 1 |
| 1988 | 500 | Carburettor | Two-stroke | Stand-up | US model code WJ500G. | Source 2 |
| 1989 | 500 | Carburettor | Two-stroke | Stand-up | US model code WJ500F. The dealer listing carries the WJ500 WaveJammer for 1987 to 1990; Yamaha dates the MJ-500S, which it names the Wave Jammer, to January 1987 in Japan. | Source 3 |
| 1990 | 500 | Carburettor | Two-stroke | Stand-up | US model code WJ500D. | Source 4 |
Sources
- Partzilla OEM parts catalogue, Yamaha WaveRunner 1987 model index, listing the code "WJ500H" (the page prints no name beside it) for that model year, partzilla.com Retrieved 2026-09-21. (model year 1987)
- Partzilla OEM parts catalogue, Yamaha WaveRunner 1988 model index, listing the code "WJ500G" (the page prints no name beside it) for that model year, partzilla.com Retrieved 2026-09-21. (model year 1988)
- Partzilla OEM parts catalogue, Yamaha WaveRunner 1989 model index, listing the code "WJ500F" (the page prints no name beside it), partzilla.com ; Yamaha Motor Co. Japan, Marine Jet history, yamaha-motor.co.jp (the MJ-500S, "Wave Jammer", released in January of the year after the November 1986 MJ-500T) ; Yamaha Motor Co., global WaveRunner history, global.yamaha-motor.com (1987: "The WaveJammer 500 (Marine Jet 500S) debuted") ; Partzilla and the Yamaha Japan pages retrieved 2026-09-21; the global history retrieved 2026-09-09. (model year 1989)
- Partzilla OEM parts catalogue, Yamaha WaveRunner 1990 model index, listing "WAVE JAMMER - WJ500D" for that model year, partzilla.com Retrieved 2026-09-21. (model year 1990)
Related
In Yamaha News
Cite this page
“Yamaha WaveJammer (WJ500)”, BaddJet archive, https://baddjetarchive.com/reference/yamaha/wavejammer-wj500/
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