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1980s Kawasaki GPZ750 Turbo Valuation Report

Date: August 2025

Historical Overview

The Kawasaki GPZ750 Turbo, launched in 1984, was part of the short-lived turbocharged superbike era. Powered by a 738cc inline-four with fuel injection and a turbocharger, it delivered performance matching larger-capacity machines of the day. The 1984 models were the launch edition, while 1985–1986 examples saw minor refinements in fuel mapping and turbo reliability. The GPZ750 Turbo is now a cult classic, with UK collectors valuing originality, low mileage, and unmodified condition.

UK Valuation Summary (by condition and model year)

Condition	1984 Models	1985–1986 Models	Example External Source (non-link reference)
Project / Restoration Non-running or incomplete; often needs turbo rebuild, fuel injection servicing, and full cosmetic work.	£3,500 – £4,500	£3,800 – £5,000	eBay UK completed sales; H&H Classics – project bikes
Roadworthy / Presentable Running and usable; may have older paint, some cosmetic wear, but mechanically sound.	£5,500 – £7,000	£6,000 – £7,500	Car & Classic – sold listings; Bonhams – Stafford motorcycle auctions
Restored / Excellent Fully restored or exceptionally original; correct decals, paint, and matching numbers; often low mileage with history.	£8,000 – £10,500	£8,500 – £11,000	Iconic Auctioneers – sale archives; The Saleroom – multi-house results

Notes: Bikes retaining the factory exhaust, turbocharger, and original paint command a premium. Many were modified in period, so unmolested examples are rare. Later models tend to sell for slightly more due to incremental factory refinements.

Value Influencing Factors

• Originality: OEM turbo system, exhaust, and paintwork add significant value.
• Mileage: Documented low-mile examples sell at the top end of ranges.
• Condition: Turbocharger health and bodywork quality are major price drivers.
• Year: Later 1985–1986 examples can command a modest premium.
• Market Rarity: Turbocharged bikes were produced in small numbers, boosting collectability.

Conclusion

In the UK market, the GPZ750 Turbo offers a unique blend of 1980s technology and collectability. Projects range from £3,500–£5,000, roadworthy bikes fetch £5,500–£7,500, and restored or excellent examples reach £8,000–£11,000. Later bikes tend to edge ahead in value, with originality remaining the key to achieving top prices.

Sources (non-link references): eBay UK; H&H Classics; Bonhams Stafford; Car & Classic; Iconic Auctioneers; The Saleroom.

All Valuations