Hello everybody... I couldn't find a 750 after searching for awhile, but...

[Chrono2nd]

I ended up getting a 1983 CB650.. It's been modified already and has gotten work recently... About 8 months ago it ran for about 2 months and has been sitting for 6 months... I have a receipt from mechanic that totaled close to 1300 dollars.. I charged the battery and seems good, but it won't start... I've never worked on motorcycles... I know I'm in the wrong forum but I can't register for the 650 forums, don't understand what's up with that..

 

[BAHNST]

Did you drain the fuel tank and carbs when it sat idle.....
Maybe gummed up carbs??..

When you say wont start it still turns over/cranks??

 

[Chrono2nd]

No I don't think he drained it before letting it sit... The guy said he knew little about bikes and I'm on the same boat.. I barely learned understood how to work the petcock.. It does turn over.. I believe there's no fuel getting in..

 

[SenseAmidMadness]

How mechanically savvy are you in general? Got prior experience working on old cars at all?

Your basic diagnosis of any no-start condition, on any engine, is FACTS. Fuel - Air - Compression - Timing - Spark. Not necessarily in that order but any internal combustion gasoline engine requires all five to run.

 

[BAHNST]

Is this a model with a vacuum petcock (fuel tap).*.?
*3 lines going from the fuel tap

If so the fix may be simple...