[haytermower50]

Hello,

Thank you very much for your reply, that has certainly cleared up some questions I had and narrowed down what series Howard Gem, I believe it is a Series 5 Gem following from the info provided.

Many Thanks

[haytermower50]

if the primer feels smooth to prime then I believe the pipes are assembled correctly and fuel is flowing into the carburettor, which is good, the filter screen may be blocked in the carburettor (pump side) which may be preventing fuel from entering the engine, or, the engine may be flooded, possibly too much fuel in the crankcase? maybe removing the spark plug and pulling the starter rope a few times to see if lots of fuel shoots out (liquid or gaseous effect). Are there gaskets either side of the carburettor when assembled, like on the manifold? theres a chance that lots of air may be entering the crankcase either by a cracked component (like the manifold) or that the gaskets arent assembled correctly (if the gaskets have small holes near the main hole that lines up with the carburettor openings?), it is quite hard to tell on this since it sounds very much like a fuel issue but may be something else, did it run before you replaced the pipes? does the engine spark and/or good compression?

hope this helps

[haytermower50]

Hello,

When you prime the carburettor, does the fuel fill the purge bulb? or when you prime it does fuel seep out of the carburettor everytime you prime it? are there any kinks in the pipes that could prevent fuel flow to the carburettor at all, plus, are the diaphragms and gaskets ok in the carburettor. Its difficult to tell with the photo provided but the fuel pipe goes with the hose that has two notches (looks like two cones on the brass pipe, if that is the technical term for it) and the return hose goes to the pipe without notches, im not sure if that carburettor has the configuration I have described.

Hope this Helps,

[Author]

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