Quote:
Originally Posted by mistified
The CCT was installed by a mechanic, he also did a compression test and said it was all good. Here is a video of some hanging RPM after blipping the throttle
https://streamable.com/lh5i7 |
That's typical of a lean mixture.
If someone knew what they were doing when cleaning the carbs they would have removed the caps over the idle mixture screws. This allows you to make fine adjustments to the mixture to compensate for changes in temp and other factors.
If they didn't remove them they didn't clean the passages, so it means they didn't know what they were doing.
Normally they are set lean from the factory, and adjusting them to the optimum setting (normally in the range of 2.5 turns out - "out" is richer) helps smooth the idle and throttle transition.
Here's some info about it -
https://faq.ninja250.org/wiki/Intake - topics #6 and #7.
As Danno suggested, you might want to take a look at the adjustment of the manual CCT. It's easy to apply too much pressure. Check the manufacturers web site for the proper procedure.