Just to clarify. New fuel lines proper spec fitted recent by PO.
Carb fuel filter is gauze and blown out at low pressure.
The carb has not been tanked/chemically cleaned. See no point in doing this (time/money) until the underlying fault is found.
Latest road test 84 miles. All went well for 79 miles (longest by far) and then the idle became erratic but did not stall.
This to me indicates there is something nasty in the fuel. When I last checked the pump pushing fuel out of the hose to carb the fuel was a slightly golden in colour, so thinking stale fuel. Ran without the inline filter this time. Also more stable running temp so must be a good sign of not running weak until the erratic idle started. Should I drain the fuel tank, is this a difficult job assume can do with a siphon pump.
Carb fuel filter is gauze and blown out at low pressure.
The carb has not been tanked/chemically cleaned. See no point in doing this (time/money) until the underlying fault is found.
Latest road test 84 miles. All went well for 79 miles (longest by far) and then the idle became erratic but did not stall.
This to me indicates there is something nasty in the fuel. When I last checked the pump pushing fuel out of the hose to carb the fuel was a slightly golden in colour, so thinking stale fuel. Ran without the inline filter this time. Also more stable running temp so must be a good sign of not running weak until the erratic idle started. Should I drain the fuel tank, is this a difficult job assume can do with a siphon pump.