11th Jan 2014, 12:25
Change the fuel filter; it's underneath mid way. I'm in the trade and I have one of these things. I have had it 2 years. I don't service it, I just abuse it till it dies, then I will take it to the scrap yard, collect the 150, and go buy another one for 400 pounds or less from eBay.
6th Jul 2013, 17:17
Two things to check or replace. Ignition coil pack and H.T. leads.
Fuel filter and pump clogged up. Normally due to dirt entering a corroded filler pipe.
Hope this helps.
Had both of these problems on mine, and it now runs fine!