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Messages - FC59BL

#1
General Technical / Re: Fuel Pump issue ....maybe.
April 18, 2026, 08:25:26 PM
In my experience it?s normal to have some sort of air bubble trapped in the pump glass bowl. Obviously not down the pick up / strainer screen. maybe check your lines and hoses, even filter if fitted for leaks. Possibly sucking air somewhere along the way.


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#2
General Technical / Re: 138 ex Speedway build
April 18, 2026, 08:19:53 PM
My8thholden, thanks for your reply. I ended up sorting it today. I drilled the jets out in both carbs to the next number, new plugs and fitted an accu spark module to the disi. Timing at around 22 degrees, she?s running sweet as 👌 pulls like a train and purrs like an upset kitten 🤠


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#3
General Technical / Re: 138 ex Speedway build
April 14, 2026, 07:52:22 PM



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#4
General Technical / 138 ex Speedway build
April 14, 2026, 07:42:40 PM
Hi Team,
Firstly, Thank you all, for all of information you share on this forum. It is an unbelievable resource. I now own 3 FC?s. My first, I purchased off this forum. (Old log in lost and gone)
I have just completed building a motor for my latest acquisition. The engine is believed to be an ex speedway build. It has Westlite high top, high comp pistons, custom ground cam (very lumpy), big valves, double valve springs, ported and polished ect. I have fitted a twin stromy manifold and extractors. I am still very much in the tuning stages but am having issues with spark plugs. It appears to be killing them quickly. I started with the standard BP4 ran ok for a little while, went to a BP6S ran beautifully for around a 15 minute drive then developed a miss. Plugs are brown (possibly a bit lean). Interested in thoughts and past experience. Running points at the moment, thinking of upgrading to Accuspark module.
Thanks in advance,
Brendan.