Problem with my 700 sks

[Bubbles]

I got a 2000 700 sks, and tonight I take it out for the first time, get it going warm it up a few short rides around the house. I loop around the block, come back and then go around again and it starts firing on one cylinder.

I check the plugs lots of spark on the mag side but if you pull the plug wire off the pto you have to rev it up to keep it going or most time it cuts out.

I fogged it out last spring and drained the carbs, all new gas in it. I changed spark plugs atfer this happpend and pistion wash looks good.

Now the funny thing, the happened 3 years ago, I took it out for a ride and 4 kms later( which is the exact same milage I got tonight) it fires on one cylinder. I took it to the mechanic, he could not find out what was wrong. He puts in a new plug and she works again. I put in new Plugs and had a trouble free year. After that year I took her to the dealer to get serviced every fall and it never happened again. Till this year,I didn't take it to the dealer this year.

Any Ideas before I start tearing the carbs apart?

 

[Hukey]

It may sound stupid but check your plug caps, the spring may be weak and cause a bad connection!

 

[Bubbles]

I cut some off the wire and plugged it in again, it has spark, pull the plug out and pull it over and it sparks.

 

[Old700]

is the spark as strong as the other hole? Bad wire with more resistance maybe? bad CDI? probably won't hurt to clean the carbs though, and make sure they are adjusted properly. I have a 99 RMK, they are almost a decade old now. Do new plugs make the problem go away again?

 

[Bubbles]

I had a new plug and put it in, but that plug was banging around for a while not sure if it was gpped right.

It seams like the carb is over loaded in oil now and the plug gets black quick.

 

[Bubbles]

It seams like strong spark.

I would think bad cdi but this happend before with the exact same about of kms on her.