The bike intakes air through the filter and if this is restrcited it can be an issue. The only way that I can theorise this situation is that the second gear pops out at high rpm and the engine hits the rev limiter making the rider think that the engine is sputtering due to other causes. It is possible for the ignition coil to not send enough spark to the spark plugs which will again cause misfires within the engine. A squirt of starter fluid at the boot while running will tell you. I haven't had the problem since and just turned over 83,000 miles while headed to the Eureka Springs M&G. Float bowl gaskets are also generally inexpensive. Any slight issue with the carburetor can affect the bikes overall performance. Regular maintenance of your motorcycle will prevent it from misfiring. Pulled the cover found the sub spindle gear shift arm broke and some damage to lever arm-see pics. Loves to ride trails and learning how to rebuild his machines. Try shifting into fifth at 70. There are three possibilities that could happen with ignition issues. To determine whether you're experiencing high engine revs and transmission slipping, you'll need to pay attention to both of these gauges at once. A forum community dedicated to Kawasaki Motorcycle owners and enthusiasts. See my post belowThanks!! It happenens with or without the auto-tuner engaged. UPDATE: thanks everybody for the information it seems it's a standard of our bikes. These days, most bikes come standard with what's called a side stand safety . Does this help in anyway of my debacle? Below or above these speeds the bike runs fine. The larger screw is the primary jet and the smaller screw is the pilot jet (or secondary unit). So, what causes a motorcycle to sputter? Over time, that threaded connection becomes corroded and rusted. your motorcycle will sputter when accelerating. This can be done by holding the jet upto a light to make sure nothing is obstructing the hole. I recently acquired a 2004 Honda VTX1300c used with only 6,000 miles. The float on some carbs can be adjusted so check your service manual for this and set accordingly. Hi folks. Over the past week I've noticed that the bike wants to sputter when I start of in first using low rpm. Check for vacuum leaks. The answer could be the pilot jet also called the idle jet or slow jet. The carb is starving for fuel. . Old ethanol fuel turned to gel? However, if you don't feel comfortable, contact our technical team and we can help you through the process or recommend a local mechanic. Use the same method to check you can see light with no obstructions. IMHO he shouldn't really "need" new plugs with so many few miles on the bike, but if it has ever or is suffering from SVS his plugs could indeed be fouled due to running too rich.common problem with the '04 and '05. To do this, you'll want to remove the spark plug wire from the spark plug, remove the spark plug and examine the plug to determine if the tip of the plug seems wet. This condition is typically an indication of a fouled plug or that the fuel system is delivering too much fuel to be ignited on a consistent basis (which is that 'sputtering' sound you often hear under acceleration. JavaScript seems to be disabled in your browser. My next stop is the fuel drain screw on the carb. Most sputtering issues can be linked back to the carb. Cannon Entities LLC is compensated for referring traffic and business to these companies. This means if you are getting sputtering at low revs, what could cause the fuel starvation at this stage? The setting dictates how much air can pass the screw and the more out the screw is turned the more air passes. - Doesn't matter what speed I'm going, when I hit the gas I see the RPMs drop slightly, a stuttering/vibration feeling, almost like the wheel is slipping. Harley Davidson Evolution and Twin Cam Touring. Getting between 38 -48 MPG. 4th,pulls slightly,cuts out. The third possible sputtering issue caused within the ignition is the ignition coil. Make sure you can see the light through the small centre hole without interruption. Start by checking the easiest spot first which would be the spark plugs. Click here to see our article about pod filters vs. an air box. Has it set for many months without riding? Rust and debre in the tank? motorcycle sputters when accelerating . Any idea what it might be? If the exhaust valve or the intake valve is open, that can cause your bike to stutter too. If it dies it will start right back up in neutral and then it will sputter a little bit while I "nurse" her back to my garage. Keep the air filter clean, whether you have a 2 stroke or a 4 stroke. With the CAGR, this market is estimated to reach USD million in 2029. Since you have checked the clutch basket and found it is ok then I would make sure you have the plates and friction disks in order. Now its time to fix it. Feb 14, 2007. First, well discuss the possibility of a vacuum leak within your carburetor. It sounds possible that it is an electrical issue. This is probably the least likely case with the ignition. Using a screw driver to undo this screw will allow fuel to run out of the attached pipe. A ground-devouring new suspension. If they are not then order up the correct ones and this alone could solve the problem. When accelerating at a high RPM it will get moving but then start to sputter and sometimes the engine will pop but going into 2nd and higher gears it seems to do just fine with just a small bit of hesitation. A notched clutch basket will not allow the fiber plates to slide & disengage. You followed the info on page 150 of the repair manual? That is fine if you know what are doing but we need to eliminate this as an issue and we know the service manual spec will do this. Take out your spark plugs and make sure there is no nasty build up on them or any type of corrosion. You will notice that one jet is bigger than the other. Remove the spark plug and examine it for problems carefully. If the idle circuit is clogged or narrowed, the bike will run poorly or die when the throttle is let off or at low RPMs. You'll get it figured out. VTX Cafe Forum is for owners of Honda VTX 1300 or VTX 1800. I give dozens of tips and tricks that you wont find anywhere else online. If you carb is starved of fuel it will cause sputtering because it is effectively running out of fuel. Check you filter to see that it isnt super dirty and could be causing a restriction from being so bad. The screws of the engine are tightened during tuning. Thanks for your time and thanks for this great forumthere is so much great information and bikes on here! They have a complete product of all available Japanese brands and many popular foreign labels. Foe example, while going 65 in 6th gear and hitting . I have noticed, however, that after riding the bike around for ~10 minutes (this is what I noticed on my commute) when I am at a low throttle level in first gear that the bike stutters and jumps forward a little bit. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Reply Quote. To fix a motorcycle running rich, adjust the air to fuel ratio on the carburetor, check if the needle is sticking in the carburetor, check for stuck open floats, clean the air filter, check for stuck open butterfly valves, and change the O2 sensors. Other culprits could include corroded or cracked spark plugs or spark plug wires, a faulty ignition coil, a clogged air filter, or engine timing issues. If its pretty snug on there, its probably not threaded and likely not the problem. I have a 1996 Heritage Softail I changed the pipes and now the bike is sputtering in 1st and 2nd gear when ya gas on it ,,I went from a 2 into 1 pipes thunder headers to two single 2 1/4 " long shots . The push rod is straight when rolled on glass or against a straight edge? Also, changing out the plugs is a good step. You should only need it until the engine is warm. Upon taking the carb off and then apart, I check the jets. Another easy thing to do it to check the air filter condition. wat happen??? The . A vacuum leak in the carburetor can cause sputtering. I must hurry back to my comic book store, where I dispense the insults rather than absorb them". Unscrew, hold upto a light to check for any noticable obstructions through the centre and surrounding holes. Then, never use the choke (enricher) ever again and you shouldn't need to. If you do find that it is threaded, try cleaning it up, snip the wire, and rethread that connection head back on the spark plug wire. I have a 2011 gsxr 600 with 5800 miles on it. Up until this point, the engine runs smoothly and is a fun bike to ride. Rusting of the spark plug can cause sputtering. Clean pintle for IAC motor, at 12noon, just inside throttle body. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Take out the spark plug and first do a visual check. Ronayers.com Fiche Desktop Motorcycle Honda 1998 CBR600F3 CARBURETOR COMPONENTS. Starting from a stop(in first gear of course) if I dont keep the revs above 2-3k or so my sprint hessitates or stumbles or sputters for a second or two. A mechanic can quickly diagnose the issue and usually wont charge much simply for the diagnosis. You dealer will tell you that it is *normal*. This short video shows you better than I can explain it so take a look. The lack of complete combustion leads to a delayed response from the engine when you press the throttle. I can shift to 2nd,punch it,it pulls for split second,cuts out. Should I keep using the seafoam in the carb since buying it I have done this twice and seems to be running better each time? Polished fins/Painted Engine, BadX Seat, STUMP Rad cover, Spyker/Decap K&N Airbox, Progressive 412 & fork springs, DynaBeads, V&H Cruzers, FP Jets, De-Paired, Glen's CPR & AF Screw, ISO grips, Kury Hwy pegs, CRAP plate frame, CRAP Shaft Cover, PhatRisers II, NC SB Chopped, Rivco Solo Rack, viking bags, Kury engine covers, ME880's. There is definitely something off. The most common reasons are carburetor issues such as a vacuum leak, fuel leak, or tuning issues. Sputtering is when your bike engine doesnt achieve complete combustion. The bike had sat in a garage for about a year. Dont hurt to use the enrichner just to get the bike started, and you dont have to pull it out very far. Extra slack in the throttle cable. 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