My bike has always idled a little low, just about 1k or a little under but never bogged down once warmed up. Out of nowhere today it died while sitting at a light. Thought maybe I was low on fuel, but not the case. Started back up but then shortly thereafter, died again. If I let the throttle go, it would bog down to maybe 500 rpm then die. If I kept on the throttle, it was fine. When I got home, it would start, idle normal for a minute or so then bog down.
I noticed when I got home that immediately after it dies it spits some gas out of the airbox drain hose. Any ideas on what could be causing this? I've had the bike almost a year and this is the first time I've had this problem. I cleaned the carbs a couple months ago and replaced the frame petcock but I've ridden it quite a bit since then with no issue. It's all stock (exhaust, air filter, etc.) and I've not messed with float heights or needles at all.
Any and all help is greatly appreciated.
Gas out airbox =float valve not seating, leading to a very rich mixture. Could be that that's killing the bike. What do your plugs look like. Dark?
Quote from: bmf on May 16, 2015, 02:45:45 AM
Gas out airbox =float valve not seating, leading to a very rich mixture. Could be that that's killing the bike. What do your plugs look like. Dark?
The tips of the plugs are black and dry, so yeah it's definitely running rich. This is completely out of nowhere. I took apart the carbs yesterday, adjusted the float height slightly. Nothing was stuck. I just started it up again this morning and when it's practically pouring gas out of the carbs all over everywhere. All the gaskets and seals are good. Just makes no sense.
Might have to take it to the shop and spend an arm and a leg for them to correct it cause I can't find any issues when I have it apart. Floats aren't stuck, needles are in great shape, seals are all good, not running the bike in prime, new petcock recently...
Any ideas?
Quote from: nickxedge on May 17, 2015, 07:35:12 AM
I took apart the carbs yesterday, adjusted the float height slightly.
Any ideas?
Did you bend the tang the right direction?
Quote from: Suzuki Stevo on May 17, 2015, 11:16:22 AM
Quote from: nickxedge on May 17, 2015, 07:35:12 AM
I took apart the carbs yesterday, adjusted the float height slightly.
Any ideas?
Did you bend the tang the right direction?
My clymer says bending them down was the proper direction, so that's what I did. I'm getting slightly less gas out of the drain hose, but still dripping directly from the carbs. I can't find where exactly though. When it bogs down and dies, it spits gas all over the crank case cover. I can't see where it's coming from, just pouring down all over.
I had this problem about six months after buying my gs new from the dealer. I was borrowing gas from the landscaping company I worked for at the time, and I assumed that I got some dirt or whatever in the lines. A fellow borrower had problems with his fuel injectors in his buick as a matter of fact. Anyway, pull the carbs and pay special attention to the float needles and valves. Theres probably some dirt in there preventing one or both of them from closing.
it could also be your valve O-ring. Nobody ever brings it up (not the most common issue), but when this sort of problem happened to me, it was the O-ring, so it's something to look at.
Have noticed a number of less mentioned (normally) o ring solutions lately Menno! .. lol. . You right! Its always the last/later thing mentioned.....
And often right after carbs have been apart for cleaning! ... 'oh that little tiny oring thing?! It looked fine!!' ... and later when the ring gets changed the issue vanishes like magic! :thumb:
Just a general observation! , not trolling anyone! ..
Grandad used to say.. "never time to do it right but always time to do it again!" ;)
Hahaha yeah Janxie, I've got lotsa old o-rings that are decaying and I'm finding out QUICK how important they really are :icon_eek: