My ‘77 Suzuki GS750 Is Finally On The Road!
Friday, August 22nd, 2008Well it’s finally happened, I finally have my GS750 on the road! It seems to be running pretty decent to. Of course it could use some more “tuning”, but it’s not to bad.
Last night I finished installing my 2 new throttle cables, the night before that I installed the carbs and the airbox. It took me a little bit to get the throttle to work smoothly last night, it kept sticking & it would not return on it’s own. But in the end last night, I got it freed up & adjusted it the best that I could at that time.
So tonight, after getting my Ignition switch back from my co-worker friend… who repaired the broken connector… I installed the gauges, hooked the wires back up & installed the headlight. After adding some 4-stroke lawnmower gas, bam!, the motor fired up pretty quick, it only took a few revolutions. Actually though, it sure fired up… revving around 4,500 RPMs & holding. I shut the motor down & looked into the culprit. In the end, I ended up putting my one good OEM Throttle Cable backs on the bike. The new aftermarket cable that actually pulls & opens the throttle, well I never was able to get it adjusted to were it had enough slack to let the bike idle down. The new aftermarket throttle cable did seem to be a little longer in length then the OEM throttle cable.
So now that the bike will idle at a decent RPM… well let me repeat that… now my bike will idle. That was my whole problem last fall when I tore into the carbs. Back then, my GS would not idle on its own. So after all my messing around & waiting to get my Idle Adjuster fixed, now that the Idle Adjuster is fixed, my GS will idle on it’s own. This is a big step in getting the bike back on the road & to being a decent commuter bike.
The motor seemed to be running a touch rough, I wasn’t 100% sure that it was running on all 4 cylinders… so I pulled all 4 plugs one at a time, & verified if I saw spark… which I did… I also shocked myself 3 out of the 4 times when holding the spark plugs to the cylinder head looking for that spark (doesn’t that indicate either that I don’t have a wire grounded somewhere, or that my spark plug wires/boots need to be replaced?). So now that I verified that it has spark for all 4 cylinders… I accepted that it was running a little rough, the bike has been sitting for so long, plus my jetting is likely to be off a little & my carbs likely needed to be sync’d as well.
Well the next obvious thing to do was to put some more air in the tires & take the old bike out on the road.
“She’s a runner” I thought to myself as I’m cruising around my neighborhood. It seems to be running ok. It has decent enough torque & actually pulls ok from 4,500RPM - 7,500RPM’s (redline is 9,000 I believe). Of course I didn’t “get on it” right away. Boy, does this thing feel totally different then the ‘08 GSXR600 that I’ve been riding for the last 2 weeks! Everything is different about it; seating position, all controls feel very different then the new GSXR, it has an old feeling to it, it shakes & vibrates more, the brakes work… but surely not very well. But I must say, it was fun to ride it & that it for sure has it’s own character. With it being so old, that makes it cooler, I did notice a few guys & girls definitely watching me ride past.
After riding the GS for a while, I did jump back on the GSXR, now that felt different to me, instead of back to “normal”. I can see that jumping back & forth between bikes will likely need time to get re-acclimated with whatever bike I’m riding at that time… to give it a few minutes of riding to let my brain come to grips with that particular bike.
So yea… I did get the bike up to 65MPH, it seemed just fine at that speed, I do suspect that the brakes will improve a little when the new pads bed into the rotors & that I will look into “dialing in” my carbs better in time… plus just putting some miles on the bike might improve how it runs by itself. I still feel that the GS is a very easy bike to ride & that it would make a great beginner bike, plus it’s way more comfortable then a new sportbike. Oh, and to adjust the Idle Adjuster after you’ve been riding the bike… that thing is a bitch to reach in-between the tank, carbs & the airbox. I tried when stopped, not sure if it’s even possible while riding?
Where from here? Well my wife Brandy, a few days ago, she just received her motorcycle license… so we’ll be battling over who rides which bike of the two… we’ll have to alternate of course. For the GS itself, of course I plan to continue improving it, getting it to run better & stronger, plus to continue improving the looks & condition of it… each year it will only be a cooler bike as it gets older & older. So this is far from the end of The GS Project, it is just the beginning of the next chapter.


























