I bought Old Brown in 1975. The previous owner had added a Hooker Header 2 into one exhaust and laced up a 5.10 x 16 bobber back tire. From what I remember he traded her in for a XS750.
The Hooker Header loved to launch it’s baffle when the screw to hold it in rattled off. Rode it on Houston Freeways and it had plenty of power.
I added a 32 tooth rear sprocket to ease the revs on 70’s Houston Freeways at speed. A Dunlop TT100 tire on the front and a fresh 5:10 x16 on the rear did a lot for the handling along with more preload on the front fork springs with a longer pipe under the fork caps. Stock, the bike ran well with the aftermarket pipe and stock 38 vacuum carbs and would blast from 45-90 mph.
Rode it through Jimmy Carter’s fake gas shortage. My allowed 8 Gallons in my car pumped into the bike went a lot further down the road.
After a lot of hot Houston miles she started to smoke. Some time in 1977 I had killed enough Houston mosquitoes fogging the roads.
Rode it to The House of Wheels and had the top end rebuilt. like all my buddies.
Wiesco 750 Kit
Stock Cam, BS38mm stock carbs , foam pod air filters , Hooker Header.
Added second disk in front,
15 % displacement + higher Compression ratio
Bike was much quicker. Good mid range torque and a great charge to red line.
Rides with my buddies on other 650’s found me getting better mileage on $.69 gas. Passing on two lane roads was effortless. Just twist and hold on.
Ran great on pump premium.
One of my 650 bud’s had caught the road racing bug and somehow talked me into taking OLD Brown to Texas World Speedway.
I ran around Texas World with stock fenders ,seat battery box, headlight and taillight . Even more interesting at Oak Hill. Discovered in riders school that my XS650 would pull away from a Triumph 650 on the straights
Then IS Now
38mm Forks from mid 80’s XJ700
XJ Triple Tree
XS Lower Bearing
XJ Upper Bearing
XJ Front Wheel
XJ Dual Disk Twin Piston Alloy Brakes
XJ Front Fender
XS-E Rear Swing Arm
The guys making Kenny Roberts fast said to use 1.5 pipes 32 inches long. My buddy Ted had a bike with open pipes built to that spec. That bike sounded awesome around TWS. I noticed that Yamaha shortened the stock headers to 32 inches in 1974.
The Hooker Header and its descendants work very well with out being earsplitting
700 CC Piston Kit bored out stock barrels Auto Machine Shop Job
38MM VM Carbs
Buba HEI System Dodge hall effect GM Module
Cleaned Up Ports
Barnet Clutch and Springs
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