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Dear all,
I am intending this thread to be a once stop reference guide for all Ignition system related issues
I will start with the issue I am facing at the moment, then I will list out individual component failure symptoms for 2 Stroke bikes.
My RD was recently upgraded to an RDD ignition(static)
Finding an original RDD 90/100 kit is like looking for a long lost twin brother, who got lost in a maha kumbh mela(if you know what I mean).
I had the liberty to get a base 90/100 kit fabricated by team carbon(Renjith if you are reading this, thanks a ton!!), it basically has a modified Allied stator and a custom cut shogun magnet with a sleeve collar to ensure it performs better, they have 30 odd bikes running this setup, it has an additional internal pulsar coil bolted at 7 o clock position
The bike was performing awesome, I must have done 300-400 kms on it, the idling was spot-on, everyone(including me) who rode the bike was super impressed.
Finally one evening while returning from office the bike stalled when I opened the throttle. I kicked the bike(like there is no tomorrow) it was not starting, it did burble once, finally after 4-5 minutes of keeping it idle it came back to life, I rode another 2-3kms when I again decided to twist the throttle the bike died, I took it home limping and finally saw one plug was little wet and the other one had spot spark and was properly jetted, I have a crossover setup so they do balance out any issues in jetting if its off in one carb by a bit.
I swapped the plugs and it did the same thing again, now I was thinking maybe a weak fuelling might cause this since before the bike died I tanked it up fully, I replaced the fuel filters and it was not giving any spark, I let the bike as it is for a day and started it day before yesterday, it fired and idled well(not really, there was an occasional sputter) then it had no spark, I decided to take the ignition apart, first thing I did it removed the RDD CDI and installed an RX CDI after looping it(term used to fit a single cylinder CDI to a twin, involves splitting the HT input lead into 2 and connecting 2 HT coils instead of 1) it ran for 2-3 seconds and died, then no spark.
I replaced the plugs
The HT Coils
CDI
Re soldered the Pulsar/pickup coil
still no spark, The same RDD/RX cdi was used on a RX and it sparked alright.
Now the issue seams to be with the pulsar coil, I am buying 5-6 pulsar coils and replacing the one I have and keeping the rest as backup to see if that fixes the issue.
Pramod
I am intending this thread to be a once stop reference guide for all Ignition system related issues
I will start with the issue I am facing at the moment, then I will list out individual component failure symptoms for 2 Stroke bikes.
My RD was recently upgraded to an RDD ignition(static)
Finding an original RDD 90/100 kit is like looking for a long lost twin brother, who got lost in a maha kumbh mela(if you know what I mean).
I had the liberty to get a base 90/100 kit fabricated by team carbon(Renjith if you are reading this, thanks a ton!!), it basically has a modified Allied stator and a custom cut shogun magnet with a sleeve collar to ensure it performs better, they have 30 odd bikes running this setup, it has an additional internal pulsar coil bolted at 7 o clock position
The bike was performing awesome, I must have done 300-400 kms on it, the idling was spot-on, everyone(including me) who rode the bike was super impressed.
Finally one evening while returning from office the bike stalled when I opened the throttle. I kicked the bike(like there is no tomorrow) it was not starting, it did burble once, finally after 4-5 minutes of keeping it idle it came back to life, I rode another 2-3kms when I again decided to twist the throttle the bike died, I took it home limping and finally saw one plug was little wet and the other one had spot spark and was properly jetted, I have a crossover setup so they do balance out any issues in jetting if its off in one carb by a bit.
I swapped the plugs and it did the same thing again, now I was thinking maybe a weak fuelling might cause this since before the bike died I tanked it up fully, I replaced the fuel filters and it was not giving any spark, I let the bike as it is for a day and started it day before yesterday, it fired and idled well(not really, there was an occasional sputter) then it had no spark, I decided to take the ignition apart, first thing I did it removed the RDD CDI and installed an RX CDI after looping it(term used to fit a single cylinder CDI to a twin, involves splitting the HT input lead into 2 and connecting 2 HT coils instead of 1) it ran for 2-3 seconds and died, then no spark.
I replaced the plugs
The HT Coils
CDI
Re soldered the Pulsar/pickup coil
still no spark, The same RDD/RX cdi was used on a RX and it sparked alright.
Now the issue seams to be with the pulsar coil, I am buying 5-6 pulsar coils and replacing the one I have and keeping the rest as backup to see if that fixes the issue.
Pramod
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