Thanks to the wizardry of the the GS911 tool and Neville's expertise my GS is now idling much smoother and has better off idle response. Another bonus appears to be lower fuel consumption on cruising home. Riding to the Auto Classics venue this morning (prior to balancing), I had a best readout of 5.1 ltr/100 km and finishing up with 5.3 ltr/100 km arriving in Perth.
After balancing on the ride home, I recorded a best of 4.4 ltr/100 km going from Nev's place to city beach and then ending up with 4.7 ltr/100 km on the freeway doing @120 km/hours.
So this reflects an improvement of @ 0.65 ltr/100 km which is absolutely fantastic.
I will of course confirm this with the next fill up to get an accurate consumption figure.
The reason for this work was that this GS appeared rougher at idle, less responsive on road and was prone to stalling at low speed/revs. Comparison was my previous GS, also a 2008 model with identical engine. This was a seat of the pants kind of feeling but there was a measurable difference in fuel economy with my previous GS recording as low as 4.1 ltr/100 km and getting close to 400 km before needing to be refuelled.
Work done prior to the balancing was valve adjustment and new plugs.
I will record future actual fuel figure achieved and post these for reference and see whether any other work needs to be done.
Thanks again Neville. There is a bottle of the best Limoncello coming your way. And thanks to Terry Anne for providing refreshments while this exhausting work was being done. Removing the rubber caps, keeping the save and puttinjg them back on was a big responsibility for me you know.......