Stronger clutch springs
 

I replaced the oem clutch plates/springs with an EBC kit. With the 350 big bore kit the new clutch springs aren't holding in 6th gear. That is with close to stock gearing 14 x 45. So I'm looking for stronger clutch springs. klx400 springs? kx450f? kx500? Anyone have an *experienced* informed idea?
I'm going to go back to non synthetic gear box oil as I've read where the synthetic is too slippery.

Over the years right up to the present, that debate has raged about syn oil in the tranny/clutch possibly causing trouble. I've used Mobil One in all of my bikes for ages and never experienced a clutch issue. A little different for most Kawasakis, I think the clutch on the KLX may be a tiny bit marginal. The guy that owned mine new before I got it had to replace the clutch discs and no big bore kit was involved. You hear this a good bit, especially if the bike is off roaded quite a bit. I haven't had an issue with mine with a 300 cylinder and tons of off road, but you see/hear about it frequently enough. You'd think the heavier EBC kit would have addressed that.

Hello!
I am using in addition to the springs EBC clutch discs of the year KX125 OEM 93. They have greater surface friction.
For now I'm very happy.

Just because an oil is listed as "synthetic", it doesn't necessarily mean it is "more slippery". It depends on the resultant base oil characteristics, as well as the additive pack characteristics.

In the case of TRUE Synthetics (created totally in the lab), there's nothing about being made in a lab that means the resulting lubricant has to be more slippery than a Group 1 petroleum.

Besides, MOST oils labeled as "synthetic" are only severely hydrocracked petroleum...thanks to the Mobil 1/Castrol Oil lawsuit over a decade ago. So, I wouldn't count on changing oils to help your problem...although it wouldn't hurt. I bet you'll need to change springs or friction plates at this point.

I'm trying to locate clutch sprimgs that have more tension so that the plates don't slip which is what fried mine. I'm just trying to find out which bike they come out of...the oem springs worked for a long time with the big ore kit. Theres no way to put washers under neath to increase tension, since theres no recess to hold them in place.

Please report back when you find what works for you. I may get bored and want to do the same thing some day, before I get slipping....

I used the Barnett springs and EBC clutch kit. Works well.

Good enough recommendation for me! Thanks...

^^^following...BB in the near future...:|)