My 1988 Tenere refuses to startit appears to be fuel starvation Iv found a strange gizmo alloy diaphram thingy bolted to the frame behind the tool box , both petrol taps are connected to this before going to the carb .There is no mention of this device in my Clymer manual , any ideas ???? thanks in advance

Hi EGGY
This is the fuel pump. Ive never had one go wrong on any of my tenere's, before pulling it a part i would start with a few basic's, check the filters on the tank pet coks as these can clog if you have crap in the tank, then i would give the carb a good clean making sure the float works ok. Have you checked to make sure that the pipe that runs from the top of the fuel pump to the top of the left side inlet rubber the one with a small brass pipe sticking up, make sure the pipe is fitted properly. This is the vacume pipe and works the pump. Hope this helps skip

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this may sound a bit basic buts its worked for me a few times.

try taking off the fuel pipe from the tank making sure you don't lose all the

petrol then blow it through into the carb then refill from the tank again a

couple of times an blow it through again.

As it's vacum feed if it's previously run out on reserve it needs this to get

going again.

simple i know but it's worth a try.

good luck

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Thanks chaps Iv removed this thing completly and piped the fuel directly to the carb , now running sweetly

Hi Eggy
Be very carefully if you have disconnected the fuel pump as i tried this once, the bike ran fine but after a few day of riding about, i filled the tank up and left it over night, come the morning the gravity had forced the petrol passed the float valve and into and into the cylinder, the petrol washed down the bore passed the rings and filled the engine casing with fuel. i ended up having to drain the engine and let it dry out and fill with fresh oil and filter. The pump is on there for a reason best to get another if you can. Skip

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Do the best you can with what you have
A stranger in a strange land / now taking a well earnned break in the UK