ignition problems, rain related or just wear and tear?

[oberonspacefruit]

Before you ask what a TPS is, here you go. 
[size=0.7em]http://foc-u.co.uk/index.php/topic,13864.25.html[/size]

Ha! you know me so well.......

thanks for the detailed reply.
Ive ordered a set of plug caps yesterday, they were the angled ngk resistor type in the red oxide colour.

When i rode it yesterday, i was backing it out and i thought id give the ht leads a wiggle to make sure they were seated. no4 was giving me a mild shock while holding it(still plugged in) while the others didnt, so at least theres one discrepancy between the 4.

I watched a vid on changing the airfilter so ill do that too. how long do they last? theres a good looking second hand one on the bay right now......an unwise move?

ive also downloaded the service manuals, so hopefully that should help with any procedures...

regarding the rad flush, is it mainly the radiator that the scaling builds up? i only mention it as i could do with a new one anyway.....

thanks agin for the reply, i research the tps thing now.
pip