What year GSXR 1100 ??

[Dlindberg]

I got a GSXR 1100 GV73A a couple of months ago. Its a Frankenstein bike, some parts I knew was changed others not really - but bike runs great, no regrets so far:) 

I did spend some time trying to figure which year it is 89,90,91 or 92 / K,L,M,N

It has 11 digit frame number without the year letter in it K,L,M,N        -JS1GV73A104527-

I found from searching that some US bikes had a 17 digit frame number already back then, which has the year letter in it, but european bikes didnt get that 17 digit VIN until mid 90s (?)

Since it ALSO has the engine from a 86-88 bike the engine number dosnt help out.

it has 36 mm carbs (which may or may not be original hence the engine was swapped) the switch gear seems to match the carbs and one throttle cable. Which makes me think carbs, throttle, cable, is original to the bike - so maybe it is likely K or L model. From what I know they are close but K have RWU forks and L USD (?) maybe theres other differences.. and Im thinking M and N have 40 mm carbs.

The bike has USD, but could have been changed from maybe RWU forks if is really a K model. Its naked no front fairing, with risers and handlebar (no clipons), bike is repainted, all white. The front seat seems to be spaced up/ lifted and the rear plastics, Im not sure, but looks like it could have been swapped. It does fit well together rear plastic, fuel tank and seats, but Im guessing it wasnt like that for starters. It has the 5.5 inch rear wheel.

 

-mayby the frame number is close to someone elses bike (known year) ? or if theres a list somewhere with known frame numbers and year.

- any advise to what could give away the year ?? cheers