Hello, I think if the bike has been left for a while I would put some new fresh fuel in and that may help it to idle. If you have already done that, then I would check the condition of the spark plugs next as you may get a clue as to what's causing the problem. Your other problem sounds like the clutch is slipping so it could be worn plates or incorrectly adjusted either at the lever or in the front sprocket cover end. It's easy to re adjust, I would start there before taking anything apart. Others with lots more knowledge will give more help soon no doubt, good luck!
Second issues is as yamazer says is clutch related. Wrongly adjusted at the sprocket cover or worn friction platesFirst one sounds like pilot jets blocked or wrongly adjusted pilot screws.The 02 -03 models have different pilot screw adjustments to the earlier models. They should be 2.5 turns out from fully in.If you replaced or cleaned the jets then it is most likely the pilot screwsRemove the carbs and check the pilot jets and the setting of the pilot screws.It is possible to get at the screws with a special tool with the carbs in place, but if you do not have it then it is carbs off
What oil is in there?I'm just wondering because from the rise in revs when you pull the clutch in when idling in neutral it sounds as though the gearbox might be giving a lot of drag. If someone's put a thick gearbox oil in there instead of engine oil that would account for it. It'd also cause massive clutch slip when under way.
Slacken the cable a bit. If there's too much tension on the cable from being adjusted too tight it's as if you've got the lever slightly pulled all the time so it slips. Do you have to release the lever quite far before it engages? That would be another tell tale sign that it's adjusted too tight. It could also be worn clutch plates or old oil but it's probably just the cable needs to be adjusted.Sounds like it's not getting enough petrol at idle as the lads said. If it only runs ok with the choke pulled then it's probably not getting enough fuel at idle so that points to blocked pilot jets. Turning the idle screw all the way in is probably making it worst not helping because that opens the butterfly valve so you'd be getting more air when you need more fuel not more air. If it's been parked up for a good while then a good carb clean and put the idle screw back to normal and it should sort it.
Unfortunately at the bottom,Turn them anticlockwise one full turn first to ensure they are not stuck or already at the stop point.Now Turn them clockwise until they stop, don't force them past the stop point or you will damage the seating. Mark where they stop on the edge in line with the screwdriver slot, make it easier to set the number of turns.Now turn them anticlockwise 2.5 turns.Make sure the screwdriver fits the slot properly
Unless you have access to the special tool it is a carbs off job. You will not have to remove them completely, you could leave the throttle cables attached and lift the carbs up through the frame enough to get at the screws.Are you sure the pilot jets are clean?
Fit the cables to the carbs before fitting carbs to the bike, making sure the throttle snaps back before re fitting.....tip no2........plenty of tea and take your time
With the air box pulled right back tighten the 2 side bolts to stop the air box moving while try to get the carbs in place. Moisten a cloth with WD40 and rub it on to the edge and inside of the rubbers before you you start the fitting. Makes it easier to fit the carbs into the rubbers. Loosen the the hose clips until the bolt is flush with the nut. Any less and they will be to tight to push the carbs on.Keep checking that nothing is in the way as you feed them back in between the rubbers.You will need three hands to get one of the cables on . I usually jam the throttle open full to put that one on it makes it easier, just make sure to feed them through correctly. Nothing worse than having the cable on only to find it is in the wrong way. Enjoy And as Red says plenty of time and cups of tea
Did you hear the fuel pump clicking like mad when you turned the ignition on ?It will only run for a few seconds and then stop, it takes a couple of goes to load the carbs up, if you turn the ignition on and off a couple of times, you should hear it slow down and then stop as it gets some back pressure. If you did not hear it, is it getting power ?If it keeps going after several on, off's maybe trapped hose, or the obvious, everyone always remembers - yah, , did you turn the valve back on ?
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Topic: Weird revving issue and bike wont idle (Read 6956 times)
