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Jet Keihin Pilot #40 (FCR-MX) (4/Pkt)
Carburettor Rebuild KitsSKU 68-350-400
Cheapest we found
$28.95
at XPERT Moto Gear
3 recent in-stock prices · spread $0.95 (3%)
Based only on in-stock prices checked in the last 30 days. 3 stores checked; dates for every store are shown below.
Recorded store prices
Prices we recorded when we last checked each store for this exact variant.
Product details
The Keihin Pilot Jet #40 is a direct-fit replacement slow jet for the Keihin FCR-MX flat-slide carburettor series, widely used across motocross, enduro, and off-road four-stroke motorcycles. Sold as a pack of four, it suits riders who tune their jetting across different altitudes, temperatures, or fuel types and want spares on hand.
The pilot jet governs fuel delivery at idle and low throttle positions — a critical tuning point for crisp off-idle response. Having the correct pilot jet size dialled in prevents hanging idle, flat spots, and poor low-speed fuelling. Size #40 sits in the mid-range of the FCR-MX pilot jet spectrum and is a common starting point for many stock displacement bikes running near sea level.
Price history
Recorded changes for this exact variant.
Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.
- 1XPERT Moto Gear5 points · last checked 22 Aug 2026
- 2Everest Motorcycles1 point · last checked 22 Aug 2026
- 3Shark Leathers1 point · last checked 22 Aug 2026
Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.
How we collect and compare prices