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tjkamper · September 30th, 2010, 11:53 AM

Yes it is important to make sure that there are no vacuum leaks. My first recommendation to was to check all the hoses to make sure they were not damaged, disconnected, improperly installed, etc...

All of my other suggestions, were based on the assumption that there was no vacuum leak, and the symptoms that he is experiencing were that of a lean mixture in the low RPM range.

Assuming he was thorough in his check for a vacuum leak, the pilot jets is the next logical step. Then he needs to ride it to see how the needle hieght/mainjet size is working for him.

September 30th, 2010, 11:53 AM	#19
tjkamper ninjette.org certified postwhore Name: Travis Location: Warwick, RI Join Date: Apr 2009 Motorcycle(s): 2009 Ninja 250R Posts: A lot.	Yes it is important to make sure that there are no vacuum leaks. My first recommendation to was to check all the hoses to make sure they were not damaged, disconnected, improperly installed, etc... All of my other suggestions, were based on the assumption that there was no vacuum leak, and the symptoms that he is experiencing were that of a lean mixture in the low RPM range. Assuming he was thorough in his check for a vacuum leak, the pilot jets is the next logical step. Then he needs to ride it to see how the needle hieght/mainjet size is working for him. __________________________________________________ Addicted to anything that has an engine and rolls.