Here's my 650 that I've had for about 20 years. It's an ongoing project in the sense I'm always fixing or upgrading it. I bought it not running and got it going and now running like a beast with the help of this forum.
My goal has always been to upgrade it and increase performance while maintaining a pretty stock look. Luckily, when I got it, all the major parts were there. The tank, wheels, and seat were in really good shape.
The stock look has been leaned with the help of low rise bars, short signals, a cropped front fender and rear fender delete, some frame trimming including the rear peg perches, and a custom chain guard. Rear fender is replaced with an zx-11 taillight and plate mount.
Suspension is an upgraded but fairly stock front with progressives in the rear. Drive train is all new sprockets, seals, chain, and hardware.
Brakes are rebuilt stock with stainless lines, modern master, and polished calipers.
Ignition is all dyna with slightly overgapped stock NGKs and copper wires. It also has the coil relay to provide better spark.
Carbs are rebuilt stock with uni pods and more fuel to accommodate the increased airflow. I think it's running 2 sizes up on both pilot and main jets with the needle on the third setting.
Pretty much everything else has been rebuilt or upgraded as well through the years.
Most importantly, it starts instantly, doesn't stumble or backfire, and once warmed up, it rips. It's pretty amazing how much pep these motors have and how much power they make even at high rpm. It runs a tad bit lean at high speeds but only when it is windy and getting a bunch of air turbulence but otherwise about as good as it gets. I'm thinking of building an airbox to replace the pods.
The delkevic pipe is a nice piece of craftsmanship and fits and sounds great. I made a custom stainless steel hanger since the bike has no rear peg perch. I ran the pipe without the baffle a few times which was fun but not good for the hearing.
Yes your bike looks very nice.
Frame is a '78, and the motor would not have the head with emissions crap.
The '79 models got the emission stuff.
Brake rotor looks 1979 or later.
That's when holes started appearing in the rotors.
Correct! The taillight is off a zx-11, just flipped upside down and mounted. Not sure about the brakes. It had the dual discs when i got it. Yeah, I got lucky. It's been just about a perfect platform. This winter will be spent adding a gravity petcock and possibly some sort of air box to cut down on the turbulence induced imbalance at high speed or when windy.
tseohs wrote: Correct! The taillight is off a zx-11, just flipped upside down and mounted. Not sure about the brakes. It had the dual discs when i got it. Yeah, I got lucky. It's been just about a perfect platform. This winter will be spent adding a gravity petcock and possibly some sort of air box to cut down on the turbulence induced imbalance at high speed or when windy.
Amazing looking bike. Tell me more about how you mounted the tail light and what year ZX-11 its from. . I want to keep my stock signals just as you have, eliminating only the rear chrome fender. Here is a pic of my bike. Looking foward to hearing from you on the tail light info.
Here's how I mounted the taillight. Don't flame me. I did this 10 years ago and it is still well attached and does not rattle.
As you can see, the zx-11 light fills out the tail section nicely. On each side of the lens, there are factory tabs. I drilled each tab and then inserted some long machine screws. They're the outside screws in photo. The same screws go through the rear mounting tabs of the tail. There's a regular nut in the center on one side of the mount and a nylock nut the other side of each mount on the end of each screw. I used the center nuts to position the light evenly on each side then snugged the nylocks onto the other side of the mounts. I then glued the factory tab on the bottom of the light to the underside of the tail (remeber it is mounted upside down). You can see the reflection of the tab int he photo. It's still holding strong.
The other photo is a kz twin tail that I'm using the same light but the mounting will be a bit different. That's going ona cb550.