My problem is an intermittent snatcy drive on my joyride.it has only done 5000 km the snatching is quite violent then the next day it could be fine!! most of the time it is two up.hope you can help me
kind regards fred
Re: intermitent snatchy drive on 2004 Sym joyride.
,being a scooter it will be in your belt has streched or your rollers have flattened out .the rollers should be changed every 2500klms or so ,as they flatten out they take longer to reach the top of the variator(they have to try and slide not roll like there supose to)
your bike has no chain and sproket like the last answer said (and he calls himself an expert)if you look at http://www.youtube.com/watch?v=3yRskb0BYwE&feature=related it will show how a variator works
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Re: intermitent snatchy drive on 2004 Sym joyride.
Check your chain. It is likely something is loose or out of alignment. If you continue to ride you risk breaking the chain and possibly injuring you, your passenger, or damaging the motorcyle. Look closely at the master link on the chain, is there a snap ring missing? Is the sprocket tight and aligned correctly? Is the countershaft sprocket nut in place and tight (the countershaft is the small sprocket at the front of the chain)?
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If it is leaking battery acid you should be able to work out where the battery is. Because you can see where the electrolyte is coming from. Remember to disconnect the earth wire (black) first. Remember to neutralise the battery acid after you have removed the failed battery.
I also own one (4 years old). Assuming it drives strongly enough at speed the problem will be your belt drive/variator transmission. If you are OK mechanic-wise remove the left side panel (you have to remove the small rear panel near the lights first) and then all the txmission case screws to have a look. If the belt is OK (and they last forever) it could be you need new roller weights in the front variator. They wear flat spots afet a couple of years that ruin acceleration. (Special tool needed - I made one though), or new clutch shoes in the rear variator - or maybe they are just sticking and need a good clean. Spin everything by hand to check for noise/slop/ wobbliness and check the oil in the tiny rear gearbox (see owners handbook. You need a measuring cup and a paint syringe to get the exact amount right. If you aren't confident use a good bike garage. weights are inexpensive and probably clutch shoes too so if you can do any labour yourself it won't break the bank. Google for a free SYM Joyride workshop manual by the way. Happy scootering
If this happens in cold weather or after a fast run it's carb icing. SYM do a replacement carb bowl to solve this or you can use a fuel additive SILKOLENE Pro FST. I use the additive as it also keeps the fule system clean and lasts well.
If you hear a tapping noise from the gearbox then you have a broken gear tooth. Is the sound is present in all the gears or just in one or two gears? If the tapping is present in all gears then the busted tooth is on the clutch hub or the crankshaft drive gear. This is good because it is easier to fix than a broken transmission gear.
If the tapping is just in one or two gears then you will need to remove the engine for a complete tear down. In any event, ALWAYS replace gears in sets. Replace the broken gear and the gear that it meshes with. Don't replace both gears and you will soon wish you did. ALWAYS replace gears in sets.
I realise I have announced the wrong bike. Somehow the fact that I ride a 2002 Sym Joyride 125 did not get through.
However, I have finally got to the battery compartment just by perservering in taking in taking out more screws, loosening the pillion footrest and was then able to slide the lower of then two vertical panels back towards the rear of the bike. Two bolts then loosened the battery box and that was that. A new battery on charge and now the task of finding where all the screws and bolts go. I hope I do not have any left over.!!!!
Very many thanks for your interest and offer of help.
If you wish ,I could later itemise the approach to this problem for future riders of thes very nice machine. But give me time as I need to be back on the road.
Thanks again and best wishes,
have you checked your belt ,also 3000 is about the limit i drive with my rollers unless i use the dr puller (sliders)they last alot longer .some rollers flatten out at about 1500-2000klms,the clutch could be worn or one of the springs could have failed(clutch or contra spring)that will give a rough ride ,1 more thing when you changed the rollers did you clean the variator and get rid of all the belt dust