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British Bikes / Re: Troubleshooting a JAP Special
« Last post by john.k on June 22, 2025, 06:25:33 AM »The exhaust seat has been well recut (several times) and pocketed ......not that it matters for road use ..........however it means that a new seating ring cant be fitted without major expense..........If your timing is extreme ,you need to be sure the valves wont collide ............Must say it seems strange to me that Burlen and others sell replica Amal carbs for astronomical sums ,when you can buy new carbs for 15 quid on ebay or temu.