will a s1 petrol tank fit a s2 as ive got a mint s1 tank ready for when i do the underside of my s2

 

fits mate but the sender is in the wrong place so might read wrong reading?

 

nightmare may have to sell it then bummer

 

I've just put a mk4 tank on a mk3 & as far as I can tell the gauge is reading right.

You also need to change the filler neck to suit which ever tank you use along with the fuel cap as a mk3 one doesn't fit a mk4 neck & vise versa.

 

good point mate.....
which also leads to the top of the neck at the filler cap needing mounting in a different way as ther different sizes/designs (if that makes sense..... open petrol cap and the bit that screws ther is different)

 

Think I'll pass and get a mk4 then sounds a lot easier