ninjette.org - View Single Post - 2007 250ZZR Carb cleaning - any mods should I do while the carb is apart?

SibSerge · October 26th, 2019, 10:58 AM

Ok the carbs are back together...
I installed them on the heads and connected the choke cable only. The airbox is off still - waiting for the gaskets to come and complete the airbox mod.

I decided to do a quick check realizing the mixture would be lean still. No synchronizing the carbs yet and no pilot mixture tuning has yet been completed either (screws at 2 1/2 turnes out). To my surprize the bike ran well even with no tunning. better than before I did the cleaning. It could even run at 500 rpm without stalling - never hapened before (quickly raised it back shortly after confirming).
Throttle response was great - no percieved lag. Given the box was off I could see the gates openning and they were openning together.
I guess 1.5 mm of washers under the jet needle helped.

Thanks for all your help folks.

October 26th, 2019, 10:58 AM	#21
SibSerge ninjette.org member Name: Sergey Location: Ontario, GTA Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213	Ok the carbs are back together... I installed them on the heads and connected the choke cable only. The airbox is off still - waiting for the gaskets to come and complete the airbox mod. I decided to do a quick check realizing the mixture would be lean still. No synchronizing the carbs yet and no pilot mixture tuning has yet been completed either (screws at 2 1/2 turnes out). To my surprize the bike ran well even with no tunning. better than before I did the cleaning. It could even run at 500 rpm without stalling - never hapened before (quickly raised it back shortly after confirming). Throttle response was great - no percieved lag. Given the box was off I could see the gates openning and they were openning together. I guess 1.5 mm of washers under the jet needle helped. Thanks for all your help folks.
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