BansheeKSA Posted February 8, 2015 Report Share Posted February 8, 2015 Right this problem has been killing me ever since it started to happen.When i started it, the left side had good spark, was idling perfectly, then few mins later the left spark becomes very weak and no smoke coming out of it.I turned it off.Started it back on. Both spark went back to normal again and idling perfectly. Few mins later same thing happens. Left side becomes weak no smoke.Checked spark plugs, they are fine. Very very light brown.Check my reeds and reed petals, both perfect.Opened up carbs, both are good. Swapped spark plug wires over, still having the same problem.I would really like to sort this out before I get a trailer for my birthday and take it for some fun riding on the dunes. I have no idea about this but i think the spark on the left side becomes weak after a while even though the spark is sparking well at start up and idling but then later becomes very weak. Need this sorted out ASAP! Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 This is looking inside the left spark plug hole to the top of the cyclinder And this one is looking through the right spark plug hole to top of cyclinder Anything to be concerned about here? Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 8, 2015 Report Share Posted February 8, 2015 You tried swapping wires and nothing happened , now try swapping carbs , you will need some rest hoses to extend choke tube and what not Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 8, 2015 Report Share Posted February 8, 2015 Test hoses Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted February 8, 2015 Report Share Posted February 8, 2015 Ohm check both plug caps. Cut 1/4" off plug wires, add di-electric grease, install caps. Check that pick-up gap is good and no rust on "nubs" Quote Link to comment Share on other sites More sharing options...
thomas h. Posted February 8, 2015 Report Share Posted February 8, 2015 Check reeds too Quote Link to comment Share on other sites More sharing options...
thomas h. Posted February 8, 2015 Report Share Posted February 8, 2015 Check reeds too And floats heights Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 You tried swapping wires and nothing happened , now try swapping carbs , you will need some rest hoses to extend choke tube and what not Tried that too, same thing. Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 Check reeds too Checked reeds also, they are perfect from looking into it from the carbs side. Didnt take it out to check, dont know how to? Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 Check reeds too And floats heights Both float heights are the same level and adjusted correctly using the manual. Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 Are my pistons ok though guys? Just wanna make sure thats not the problem thats causing the weak spark on left side. Plus my CDI is not stock, its aftermarket and it is set to "curve 3" position, dont know what that means. Any idea? Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 I put a link to a dynatek pdf download on your other post. its the instruction manual that tells you what the timing curve settings are, Thanks bro, appreciate it Quote Link to comment Share on other sites More sharing options...
BansheeKSA Posted February 8, 2015 Author Report Share Posted February 8, 2015 $10 bucks says your dynatek cdi has failed. Lets see if the spark plug wire trimming solves the problem, if not then i guess its the CDI then. Checked stator too, its all good. Has to be either the coils or CDI, everything else is fine. Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted February 9, 2015 Report Share Posted February 9, 2015 Both plugs fire at same time, so if it's good on one plug wire there is something wrong with the other wire, cap, or signal at flywheel. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 9, 2015 Report Share Posted February 9, 2015 I would try swapping carbs before you dean anything bad , see if it follows. My experience with cdi is they don't discriminate side to side. If you swapped coil wires with no change I would swap carbs. Did you pass a pressure test . Could be trickling coolant in that side or bad stator side crank seal. Few and far between but I have also seen a bad flywheel cause s miss on one cylinder Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.