open the helmet lock on the left side of the bike, then pull the lever located behind the helmet lock toward the front of the bike. this should release the seat.
gpz 305 fork iol is 140 cc per leg
1984 GPZ900R (development in 1982 - 83) and was the first Kawasaki to be marketed under the Ninja brand name in NA. Prior to that bike, most of Kawasaki standards or sport motorcycles were called GPZ. I have the 1984 900R and it has both the GPZ and Ninja names on different parts of the body.
321cc +/- 5cc
I think this is a simple gravity feed to the carbs. It's possible you require some vacuum from the intact manifold to open the flow. Some Honda Nighthawks are set up that way. The stock from the factory 1982 GPZ 1100's (B2) were fuel injected with a pump located below the battery tray providing 33 PSI on turning the key to 35 PSI while running. A suitable replacement is a MSD # 2225 fuel pump using a new fuel pressure regulator from www.mpsracing.com/NOS/no01z.asp
maby , but i know that the swingarm the shock absorber rim of a zzr1100c fit in the gpx , also the rim of a zzr600E so its a modification from 18 inch wheel 140 to 17 inch 160. then you can put a 180 tire on the gpx , but then because of the different rear rim you need to change also the front tire from 16 to 17 inch .. a gpz 500E rim fits in perfectly...hope that i could help you
Use a heavier weight
online manual suggests 10w/40, 1.8l with filter change, 1.5l without.
Check your fuse, ign switch and kill switch.
you can easily get the service manual online for free (same as the kz750), highly sugggested. cylinder head nuts figures are first 2.5kg.m or 18ft lbs in a criss cross pattern then to 4.0kg.m or 29ftlbs. the bolts are 3.0 kg.m or 22ft.lbs. valve cover figures are 104inlbs or 1.2kg.m. once put back together warm up bike thoroughly then retighten to specs. just changed all gaskets that, was a pretty easy job. good luck
There are two star-head screws on the rear of the ignition switch.(Actually reversed star-head screws) You need to buy a special tool to get them off.
The gpz1100 a1, it was even advertised as the world fastest production motorcycle at the time. i know I bought one. it was superceded by the gpz 900, an iconic motorcycle which took some of ithe 1100's design cues with a better engine and became the first modern sports bike.