ninjette.org - View Single Post - Intermittent idle woes, single click sound RPM drop

mistified · January 19th, 2019, 02:59 AM

UPDATE: https://streamable.com/gmwv4

I finally got the carbs out, took it a part and it was clean. BUT, the idle mixture screws were ridiculously backed out, something like 5 or 6 turns. I reset them to 2.5 turns out.
Does this mean at idle I was running very rich, thus the occasional bog at idle?

I also replaced the main jets, pilot jets, and shimmed the needle with this kit:

https://www.ebay.com/itm/08-12-Kawas...72.m2749.l2649

(2 one size larger Pilot Jets (#40), a set of 2 two sizes large Main Jets (#102) and one needle shim for each carburetor)

The original jets were clean, I could see through the holes, but were a little darkened at the tips.

Exhaust was also changed to a slip-on leo vince

Looks like my lean spot at 2k rpm is almost gone and idles nicely; took it out tonight and it performed flawlessly. I still get quite a bit of pop, and backfire flames when I abruptly close the throttle. Normal or should I back out the idle mixture screws again to 3 turns.

January 19th, 2019, 02:59 AM	#27
mistified ninjette.org member Name: Ed Location: Vancouver Join Date: Dec 2018 Motorcycle(s): Ninja 250 , Rebel 500 Posts: 13	UPDATE: https://streamable.com/gmwv4 I finally got the carbs out, took it a part and it was clean. BUT, the idle mixture screws were ridiculously backed out, something like 5 or 6 turns. I reset them to 2.5 turns out. Does this mean at idle I was running very rich, thus the occasional bog at idle? I also replaced the main jets, pilot jets, and shimmed the needle with this kit: https://www.ebay.com/itm/08-12-Kawas...72.m2749.l2649 (2 one size larger Pilot Jets (#40), a set of 2 two sizes large Main Jets (#102) and one needle shim for each carburetor) The original jets were clean, I could see through the holes, but were a little darkened at the tips. Exhaust was also changed to a slip-on leo vince Looks like my lean spot at 2k rpm is almost gone and idles nicely; took it out tonight and it performed flawlessly. I still get quite a bit of pop, and backfire flames when I abruptly close the throttle. Normal or should I back out the idle mixture screws again to 3 turns.