please help me!!!

[Anonymous]

i had this 1977 gs750 just given to me.it sat for 2 years.when i got it to my house,i pulled the carbs off and my dad cleaned them.when he gave them back to me he said that there was water in the bowls and that the metal of the bowl were starting to eat away from the water.i put them back on.i hooked up back the carbsand hooked up the gas.well the fuel petcock started to leak so i went a motorshop and he gave me another one off an 450 he said it wouldnt make a differnce.well i put that on.it now doesnt leak but when i tryed to start the bike it wouldnt.i tryed spraying alittle starting fluid in the carbs,i tryed to start it again well and it started until the starting fluid ran out,and it died.i tryed it with the gas again and still nothing!so can someone tell me whats wrong please!i would really appreciate it!thank you!bye!


p.s.but it will start for a sec with starting fluid but not just gas!!!

 

[crc1214]

Well, this may sound stupid...... but if you haven't done so already, set the petcock to "prime", and wait for about 15 seconds. If your carbs start leaking gas...... well that's another forum.

Anyhow, assuming they don't, after the 15 sec. turn it to "on". Now try and start the bike. You may have to use full choke to get it started.

If you took the carbs off to be cleaned, and haven't primed them with gas before starting, I'll bet they don't have enough gas in them yet.

 

[Anonymous]

ive done that already!can some one please help me?what else can it be?

 

[joe.d]

CHeck.......GAS in to Carb.....did you prime the carbs
check Spark........whip out a plug check the for the clearance
Id just bung in a new set , after I checked the gaps
before you bung in a plug KICK the bike over with a SPark plug lead on a new plug placed near the fins of the bike and see if theres a spark

you can also use the starter motor but I wouldnt it would weaken the spark

check compression
make sure the kill switch isnt on.....sounds obvious, but hey it happens
MY bike wont start unless the clutch is pulled in
best of luck mate

 

[Anonymous]

wheres the kill switch and why wouldnt you want it on on?

 

[joe.d]

the Kill switch is on the right handle bar usually ...it kills power to the ignition

 

[Anonymous]

but it fires over with starting fluid!

 

[Anonymous]

make sure the kill switch isnt on.....sounds obvious, but hey it happens

dont you need the kill switch on to get spark? my bike requires it

 

[Anonymous]

no u arent understanding me,if u spray starting fluid in it ,it fires over but if just try to start it with from the gas tank it doesnt do anything!

 

[Anonymous]

but it fires over with starting fluid!

did your dad readjust any of the needle valves while he cleaned them?
does the petcock actually flow fuel when in prime? ( your 450 one could be bad as well)
did your dad set the floats to spec?

 

[Anonymous]

yeah

 

[joe.d]

Don Watson
damn it you know what i mean

 

[Anonymous]

 

[Anonymous]

whats that supposed to mean?

 

[Anonymous]

just giving joe a hard time

 

[Anonymous]

so what else might be wrong w/ it?

 

[joe.d]

get your self a manual, is the first step.....its a learning curve for sure, but when you get things running youll be happy
JUst remeber with out fuel it wont run....without spark it wont run

get out there MR

 

[Anonymous]

but it has spark

 

[Anonymous]

but it has spark

true very true I believe very strongly that your problems lie within your carbs still and that you need to go through them with a fine toothed comb, let them soak in some carb dip for a couple of days, use some very fine wire or a torch cleaner for probing all the passages, set all needle assemblies and floats to the factory specs, use new gaskets and o-rings, then take the bike to a proficient shop for a good syncronization.

 

[Anonymous]

yeah i think thats what i am going to have to do!i am buying the rebuild kits for all four carbs friday!$80.00 for all for of them($20.00 a carb!)