My first bike: 1980 cb-750F supersport - free from father-in-law...

[spartan8ball]

Here's some breif history of this bike.  My wife's cousin had it, drove it a but, dumped it a few times, and was too scared to ride it again.  He sold it to my father-in-law for a few hundred bucks, even though it never did run right(according to my father-in-law.)  Dear ole' dad proomptly parked it in his garage and did some cleanup work on it (replaced most of the broken parts/turn signal/mirrr from dumping it) but never really fixed it.  He replaced the carbs with ones from a cb900 (which I have since removed) and mentioned he was going to sell it soon.  I said, how much were you gonna sell it for?  He said, well, 200$, but for you, I'll just give it to you:  So here it is.





and here is me riding it.
http://www.youtube.com/watch?v=ru7Ybq22354

Here is a list of KNOWN things wrong I have to fix yet, just to get it inspected:
1:  Need new rear tire.  New front one probably wouldn't hurt either.
2:  original carbs need cleaned/reinstalled - DONE
3:  A valve cover bolt-hole (in the camshaft bearing) is stripped.  I am currently filling it with JB weld, and will drill/re-tap tomorrow
4:  Rear left tail light works as turn signal, but not as running light (brake light and right turnsignal works fine)  There is electrical tape on a solder joint, that's probably were the problem is.
5:  Paint job is crap. Many dents, dings, scratches.  Will need painted if I like the bike and want to keep it for a while, but not to bad looking considering its a year younger than me, and was treated twice as bad!
6:  My father-in-law had the engine compression tested by a bike shop, and all cyliders were very high, so engine should be rock solid.
7:  I did take it for a quick spin.  Likes to stall when the clutch is pulled and the engine returns to idle speed, although it still had 900 carbs on it then.  I will get the carbs idle/synch adjusted just for the hell of it when its inspected.
8.  NEED A NEW SEAT!!!  Alternator cover also has a rather large gouge worn through it, have to replace before the alternator craps out from exposure.

Any thing else I should look out for?

So, whadya all think?  Not to bad for a learner bike, huh?  I recently finished my safety course and now have my license, cant wait to hit the road!

[spartan8ball]

THE BEAST IS ALIVE!!!!!!

Okay, seriously now.  I essentially rebuilt the 900 carbs, cleaned all the jets and needles, replaced the air-cutoff valves (HUGE thanks to whoever posted on here about using needle-nose vice grips to replace them without separating the carbs), replaced the acc pump, put new spark plugs in, and boy does this baby run smooth now.

Still idles a little rough.  I set the idle screws (little brass needles, one in each carb) at 1 1/2 turns out as described in the book.  Adjusted the main idle setting to about 1200-1300, and its pretty smooth.  I tried setting it to around 1100, but it sounded a little uneven, was afraid of stalling, so I'll leave it at 1200+ until a bike mechanic synchs/adjusts it.

I took it for a quick spin today (still no plates/insurance) but boy was it a fun ride.  Very smooth acceleration, no stalling at all, loads more power than before, it was like a whole new bike.  I can see why you guys love these so much.  I will be restoring/repainting it this winter.

So basically the bike has the 900 carbs in it, with jets/air-cutoff valves/acc pump from the 750 carbs, and it is now running like a champ.  I got the title transferred over to my name, and this week I will be getting it insured and plates put on.  I'm gonna see if I can find a cheap digital video camera to record a ride on.  Ill post it if I can!!!  Thank you all for the help!!!

[woodsrider250-2]

Sweet.  Nice bike!  Google 'homeade carb sync tool' and just do it yourself.  Sounds like you're quite competant enough.  Change oil.  Lube everything, and don't forget steering stem.  Bike's worth a couple grand when you're done.

[80cb750fss]

nice bike great description to, with wat u posted will help me out on rebuilding my carbs this week,