I'm hoping some knowledgeable fellow ST1300 owner can help with an issue which has started since the major service (103,000km) was done last week. What is happening is I start the bike and it is running sweet as following the service (which included new air cleaner, spark plugs, valve adjustment, fix a leaking fork and correct the reverse polarity for the 12volt socket in the RHS pie warmer (this is a long story, suffice to say it was not me who reversed the polarity). Once riding off it takes 1/2 a km before the fuel gauge lights up (indicating the tank is 1/2 full when it has 50km on the trip meter from full) and the fuel consumption is reading I'm using 90l/100km. After a while the gauge climbs a bit and the consumption readout drops to 30 or thereabouts and finally settles to a normal readout. But it can change to a silly amount at any time.
The searching I've done suggests electrical contact problems somewhere. The battery is about 12 months old and not giving any sign of needing to be replaced. Has anyone experienced something like this or got any plausible suggestions.
Thanks ... Mark