Remember, it will take a bit to get the fuel running through the carbs at first. Basically, she'll start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. And yes, it has gas lol. The bike hasnt been running to my knowledge for 4-5 months. Does it cut out as soon as you pull up to a traffic light and disengage the throttle? Charged the battery - truck started and ran fine. Loosen the screw and turn the cable in or out to get 1/16 to 1/8 inch freeplay on the thumb throttle. My bike normally idles around 1050. Does it start up fine and keep running as long as you engage the throttle? Any suggestions would be greatly appreciated.. Is your bike basically the upgraded GSXR600 with the Mikuni carburetors? I was told smoke came out of the exhaust but I didn't get to see what color. With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. As soon as you crack the throttle the starter is not working against the vacuum of the closed throttle and spins just fast enough for it to start... Its only a few RPM's but it is enough to make the differance. Welcome to Bike Talk, a forum for all bikers and motorcycle enthusiasts. Jetski won't stay running (too old to reply) JamesE 2007-06-02 22:12:48 UTC. Join Yahoo Answers and get 100 points today. a) After Storage. carb needs to come off and the jets cleaned. is your fuel filter clean? With the choke full, it holds at 3000rpm and once warm the idle drops to about 1000/1200. But a few seconds in, it sounds like it's choking and slowly turning off, unless I keep revving the throttle, then it stays running. Answer Save. Then start the bike without using throttle, if you use any throttle when you crank the bike over the IAC cannot find home and the bike will stall. Next, screw the idle mixture screw all the way into its hole until it just stops turning. Is it feasible to think that it might not be too clogged if it's at least idling ok? Then when it does start, if I let go of the throttle, it dies immediately. Aside from that, if it's carburated, it may be runnin too rich or too lean your choke may be out of wack too. I see a few replies regarding a vacuum leak. If your bike runs fine other than tickover and if nothing has been modified it could be a block in the carb system. I've never messed around with any kind of vehicles before but I'm willing to open up anything if it's not too difficult. Message. Vacuum leak. If so it sounds like a carburetor problem if it dies below 1000RPM, has the air intake filter been changed or modified? Don’t try this at home!) If it feels ok at the grip and you hear the slide going up and down that means throttle control functions as it should. Jump to Latest Follow 1 - 8 of 8 Posts. Quick links. A lean running motorcycle engine is usually caused by clogged jets inside the carburetor. Write that number on the back of your garage door so you won't forget it. Why won't my motorcycle stay running? If your bike has been warmed up and is idling lower than the recommended level from the manufacturer, you probably have a couple of problems: The engine will stall easily or may not stay running without throttle being added. Hopefully you found the problem. Bouncing up … Page 1 of 2 1 2 Next > TShamanSon New Member. Won't stay running / Not idling. Subsequent attempts won't even run, just crank crank crank crank, nothing. I could bring them back down by engaging the clutch, but when I did this the revs dropped to around 700. Check the air filter, mucky filters can cause this problem. The coolant is a bit low but doesn't seem to heat up. Listen closely, ear at the carburator, check to hear the carb slide move as you twist the grip. If I didn't give enough info just say so. Next, screw the idle mixture screw all the way into its hole until it just stops turning. So, why does a motorcycle throttle stick? The one person who did give something sensible - Samantha got a thumbs down !!! You should actually hear the function of the barrel in the carb. This is why some dirt bikes need to have the choke on left longer to keep them running without needing to give it more gas by twisting the throttle. It would turn on normally. I'm trying to figure out what's wrong with my Virago 250cc. I have an 2000 Kawasaki Super Sherpa, first bike. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. I even tried to start it without the air filter in, and no go. The only way that the ski will stay running is if when I am in the water I hold the throttle wide open. If you have a good manual it is possible to do but if you don't take your carbs to a professional carb shop. Anyone know what to do for this? I rode it over to my friends house yesterday, just fine no problems, then when I went to go ride it back home, it wouldn't turn over. I went with a 130 main and a #20 pilot. My Mule will stall at Idle unless I keep choking it. The pilot air jet is probably in the mouth of the carb, but sometimes it's located underneath the large rubber diaphragm under the vacuum cap. If you stay off the throttle it will idle but its very rough and wants to die then finally dies. I'm hoping that the Seafoam will clean it enough to get it running. You will also experience stalling during take offs. what does the air filter look like? When you bump start the bike it spins the motor fast enough. Even more so after you've run the battery down or tried push starting it, yet it still won't start and run properly, all the while your riding buddies are waiting on you to get that thing started. give them a squirt of wd40 to clean or go to the bike repair shop, what about trying to adjust the tick over by finding the slow running screw on the carb. What's my problem here? Then when they were balanced afterwards back on the bike it ran like a dream. Th Subsequent attempts won't even run, just crank crank crank crank, nothing. If the bike has a choke, make sure it's closed. Fresh gas and "jet cleaner" WILL NOT fix the problem. Bike won't stay running. You'll have to remove the carburetor and turn it upside down to drill a 1/16th inch pilot hole in the 92066 plug, amigo. Metering the fuel ratio is the jets, the air slide (and needle) and the enriching device (choke) for cold starting. Won't stay running w/o holding throttle #1 Unread post by rapidblue » Mon May 15, 2006 3:35 pm So like the title says, all of a sudden yesterday and today, the bike will not stay running unless I hold the throttle. The bike runs fine and everything, its just that if it falls below 1RPM itll just just turn off. I can start it and hold the throttle simultaneously and keep the bike running it i throttle it to about 1000 rpm's or so. Motorcycle Idle Too Low. If you haven't what I would recommend is turning the mixture screw out 2.5 turns and installing a new main and pilot jet in the carb. Joined: Jan 21, 2013 Messages: 4 Likes Received: 0 Location: GA. Hi i have just brought a cheap bike for driving round the farm on but the bike wont hold the revs it will kick over and fire up, but if you dont hold the throttle partually open it will die. About a few weeks ago, I started to notice that my idle was getting rougher. Running or starting of an engine back on the thumb throttle, did n't give enough info just so! It runs with choke the Seafoam will clean it enough to get the fuel pump working but would. But when I twist the throttle or two and just die, but it wo n't.! Air filters like K & N, different exhaust, the carbs 8 posts tickover if! Was having some carburetion problems because the carburetor did give something sensible - Samantha got a thumbs down!!... Enthusiasts who can agree on nothing except for entry level SV650s and splitting. 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