I just bought a 1982 Suzuki GS450. It was running, and idling, fine two days ago, the guy even drove it 40 miles to where I am and it seemed to be fine. Today I started it up with the choke fully open and it idled fine for about ten minutes. Then the rpms slowly started going down and eventually it died.
It starts ok, but now it will stay on only if I give it some gas, even with the choke fully open. The guy said he filled up the tank before he brought it to me.
The only difference I noticed was that it is now situated on a slight hill, and before he kept it on flat ground.
What could the problem be?
2007-06-20 10:43:40 · 6 answers · asked by nannite 1 in Cars & Transportation ➔ Motorcycles
check the idle adjustment screw on the carb itself. it may just need to be turned up a bit. i had to do it on mine when i bought my bike.
2007-06-20 10:48:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
a) You're idling it for 10 minutes! Don't expect it to idle for 10 minutes! d'OH! Ride it! After it warms up a bit, it'll idle a little longer, but not 10 minutes!!
b) Give the idle adjust screw a few turns.
c) Marginal gas, put some carb cleaner gas additive in there (I use about a quarter of a small bottle with a full tank of gas)
d) When in doubt, check the oil level. When your motorcycle is cold, and level on its center stand, the oil level has to be between the two marks. Underfilling is bad. Overfilling is not good.
e) All that idling at low RPM is putting crud on your spark plugs. Remove, clean, check the gap, put 'em back in.
f) All that idling at low RPM is draining your battery. Charge up your battery [1 amp trickle charge -- buy a battery tender or battery tender junior if you haven't already], then stop trying to idle for 10 minutes.
2007-06-20 11:04:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You might have a vacuum leak some where. In that case it would be running to lean and choking it would return the mixture to more normal. I would have to look at the bike to be sure.
Also your bike might have a cam to raise the idle speed when choked. So the rough idle and stalling could be from many things. Choking it also raises the idle speed and is keeping it running that way. Perhaps.
2007-06-20 13:43:56 · answer #3 · answered by Hawk 5 · 0⤊ 0⤋
How long did it sit before you bought it?
Your carbs need to be cleaned.
You should also remove and clean the screen on the petcock.
2007-06-20 11:36:23 · answer #4 · answered by Firecracker . 7 · 0⤊ 0⤋
sounds like bad gas, and gummy in the idle circuit,
2007-06-20 11:06:22 · answer #5 · answered by rich2481 7 · 0⤊ 0⤋
needle is sticking take off carbs have them cleaned and checked out , sounds like trash or varnish in them have them adjusted also
2007-06-20 11:19:29 · answer #6 · answered by Nightrain 3 · 0⤊ 0⤋