Cold starting

[Disorderlypunk]

ok so definatly sounds fuel related start with taking the pipe off the fuel pump outlet and add a pipe to a jam/coffee jar or just hold a jar there
switch on ignition and see if fuel flows
yes fine = problem is after pump
no or slow = problem is before pump or with pump


before pump - i would look at the fuel filter first, maybe take the fuel pipe from the filter inlet and run it direct to the pump (if problem solved then its the filter so replace asap - DO NOT RUN AROUND FOR A WEEK WITHOUT A FUEL FILTER)
any idea when your filter was replaced last they are only about £8 on ebay so worth replacing anyway


-when the fuel pipe is disconnected from the filter just see what the flow is like direct from the tank if is seems a bit slow it could be a blocked prefilter but this isnt common unless you have a rusty tank - can sometime fix this by blowing up the fuel line but the problem will return so will need to empty the tank remove and give it a good flush (dont do this in winter as it will never dry again wait till summer so it can sit in the sun)


WARNING - the pipe leading from the pump to the carb remove from pump side - the plastic connection carb side is a bit brittle and can break easily - that little bit of plastic is £30, i found out the hard way


i would definatly try and get a dose of redex or preferably marvels mystery oil through the system as is can dislodge little bits that may be sticking but the chances of four float valves sticking at once is slim even in winter (i dont even have the carb heater hoses running through mine)

and darsi just posted a very good point about breather pipes - if thats the problem there are two outlets under the tank add a bit of hose and blow through them - no hose? just wrap you lips around it and blow (as i told the g/f last night) , you will know if its blocked