Hey guys,

Thanks very much for your replies. Sorry for my late reply.

Good to hear about Performance Engineering, and that they often send vans out to collect bikes - that could save me a 400-mile round trip in a rented van myself! I will give them a call. I guess they will know what to do about the power valves / PGM issue too.

Andy - it's been so long since I spent any time on my NSRs that I basically can't remember what's been changed on them, but I do know that I always kept my powervalves meticulously clean after the first couple of fried PGMs, but then still had the "powervalves stopped working" issue appear after that. I think I remember having to replace voltage regs (not 100% sure), and definitely replaced PGMs a couple of times. So, when the powervalves stop working, do you have to replace both the PGM and voltage reg at the same time? Can PGMs be rebuilt these days?

Changes on the bikes - I think the R is totally stock apart from an M-Max box and maybe a free-flowing air filter (or perhaps NO air filter). The SE had been tracked or possibly raced before I bought it, so not sure, but I think it might have a wire-splice derestriction. I put Jha pipes on, and also free-flow or no air filter. Nothing else I think. On that basis, would you suggest that I need either / both bikes rejetted or else set up somehow?


Last edited by Raine on Mon Feb 03, 2020 7:54 am; edited 1 time in total