I bought a wrecked(mostly cosmetic) 01 last fall,put it back together and added a p.com.lots of fun, occassional trackday etc. usually runs flawlessly ,but occasionally I'll hit a sharp bump on the street and the bike sputter and stall. the sputtering is abrupt as if the ignition is being turned off and on.the strange part is when put in nuetral it always restarts but when shifter is engaged it stalls.(I bypassed the kickstand switch to be sure it was'nt the problem) usually after a short period of time I can get it going again(sometimes wiggling wires/connections etc. but not always the same ones)lately the f1 light comes on. any clues? getting frustrated too. thanks for looking.