Chopped '81 KZ305 CSR

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1981 Kawasaki KZ 305 CSR

This one was built on a budget for my wife. She didn't care for the bike stock and said to get rid of it. I started chopping on it instead to see what I could do with some imagination and very little money. The wife likes it fine now and has been out many times learning how to ride. Total outlay was less than 400 bucks which proves you don't have to spend a small fortune to get a "that's cool" out of folks.

81 KZ305 CSR right side

Make and Model 1981 Kawasaki KZ305 CSR
Engine 306cc (18.6ci) air cooled twin
Bore x Stroke 3.72 x 3.2" (61.0 x 52.4mm)
Compression Ratio 9.5:1
Carburetion Keihin CV32 x 2 with Emgo filter pods
Transmission 6-speed, wet clutch
Final Ratio 2.17:1
Horsepower 30 @ 9000rpm
Torque 5.5lb/ft (2.5kg-m) @ 7000rpm
Fuel Tank Capacity 2.77gal (10.5liters)
Curb Weight 366lbs (164kg)
Wheelbase 53.7" (1365mm)
Front Tire 3.00-18
Rear Tire 120/90-16
Seat Handmade Custom
Head Light 5-3/4" Tractor Light
Tail Light/Plate JCW Bullet w/simple plate mount
Exhaust HD sporty mufflers on stock pipes

81 KZ305 CSR right rear The head light is from an old tractor and the seat was made from an old aluminum heat lamp shroud. I used closed cell foam (one of those 1/2" blue sleeping bag mats), 3M 77 adhesive and 80 grit paper on a block to get the shape then covered it in an old t-shirt.

81 KZ305 CSR side after About six inches was cut off the tail and the rear hoop was welded back on. All un-needed tabs and brackets were cut off and ground down. I'd guess about twenty pounds of dead weigh was chopped off the bike. About two of that was the stock wiring harness.

81 KZ305 CSR rear after Rear shocks were replaced by a set of fabbed struts about 10-1/2" long. Stock rear fender was rotated forward and re-mounted.

81 KZ305 CSR front after Originally the tail light and plate were side mounted but the bike is so small that it got in the way. Changed it over to a fender mounted bullet light from JCW and fabbed up a simple plate mount.

81 KZ305 CSR right after Those HD sporty mufflers were cobbed onto the stock pipes by a previous owner. They don't sound terrible.

81 KZ305 CSR chopped a bit Just a few parts removed and a couple of cuts.

81 KZ305 CSR lowered Cut the springs on the rear shocks so she was sitting on the bumpers.

81 KZ305 CSR right After a little clean up, battery, a good carb swamping she fired right up and rode fine. Could have dumped her then but I can't leave anything alone.

81 KZ305 CSR left The one below is way she was sitting for quite some time at her old home. She had the typical ancient battery and green carbs. Stole it with a title and current tabs for 200 bucks.

81 KZ305 CSR


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