How to inspect a used Honda HRG 466 SK — UK guide
The Honda HRG 466 SK (Izy series) is the mid-range Honda for typical UK gardens. Cheaper than the HRX, simpler mechanism, same Honda GCV engine pedigree. Here is the 10-minute used-mower inspection.
Before you go
Bring: spark-plug socket (16mm), a torch.
The Honda GCV is the headline. Confirm cold-start cleanly, then everything else is fixable.
1. Cold-start the Honda GCV145
Auto-choke on modern HRGs (or manual choke on older units). Pull once. The Honda fires on the first or second pull cold.
Slight smoke that clears in 10 seconds is normal. Persistent smoke = top-end wear, walk away unless under £200.
Knocking or rattling once running means internal damage. Replacement Honda GCV from a salvaged HRG is £180-£280.
2. Test the self-propel drive
Engage the bail-arm on an incline. The Honda Smart Drive should pull cleanly without slipping.
Slipping under load = stretched drive cable. £25 OEM part, 30-minute DIY. Knock £35 off.
Drive lever stiff = corroded cable inside the sheath. £18 part, easy DIY fix.
3. Inspect the deck
HRG decks are pressed steel. Tilt the mower with the spark plug disconnected.
Rust-through the deck is walk-away — replacement is uneconomic. Surface rust is fine.
Bent deck-edge suggests impact damage. Check the blade for damage as well — both often go together.
4. Check the blade and spindle
With the spark plug disconnected, grip the blade and check for vertical play. Any wobble means spindle bearings are worn.
Worn bearings = £40-£60 dealer fix. Knock £50 off.
Blade chipped = £15 OEM blade, easy DIY swap.
5. What it's worth in 2026
2018–2020: £220–£320 in tidy condition with documented service.
2021–2023: £340–£430. Newer auto-choke models.
2024–2025: £440–£500. Near-new, sometimes warranty remaining.
Knock £40 for: stretched drive cable, stiff drive lever, missing service stamps.
FAQs
HRG 466 vs HRX 476 — which to buy used?
HRG is £150-£200 cheaper used and has the same Honda GCV pedigree. HRX adds the rear roller (stripes), variable speed drive, and Roto-Stop blade brake. If stripes do not matter and you want Honda engine reliability without the premium, the HRG is the smarter buy.
Honda HRG 466 vs Mountfield SP46?
The HRG outlasts the Mountfield SP46 by about 5 years on equivalent maintenance. Used, the HRG is £100-£150 more. For 5-year ownership the SP46 is the smarter spend; for 10-year ownership the HRG wins on cost per year.
Where do Honda parts come from?
Any UK Honda dealer or authorised garden machinery retailer. Service items (filters, plugs, blades) on the shelf. Major parts (drive cables, spindles, decks) ship within 2-3 days from the Honda parts warehouse in Reading.
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