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Old October 24th, 2014, 06:59 PM   #5
Scattcatt
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Name: Zach
Location: Michigan
Join Date: Aug 2011

Motorcycle(s): 2008 Kawasaki Ninja 250R, 2003 Honda CBR600RR

Posts: 721
Blog Entries: 1
Quote:
Originally Posted by Scattcatt View Post
The bike has a little over 30,000 miles on it, Dynojet kit with needles on 2nd clip with 2 shims each, full Yoshi exhaust, snorkel delete, and removed air box with the K&N 0990 filter.
Quote:
Originally Posted by Foxrider64 View Post
I suspect bad gas too.

But valve clearances out of spec can also cause sputtering from mistimed valve openings and closing.

How many miles are on the bike and were the valves ever adjusted?
I do the valves myself at the specified servicing intervals, this should not be the problem. The next valve clearance inspection is in about 1500 more miles.

I've been working a lot recently so have not had time to test out the bike with the new gasoline, (bike is too loud and I get home too late) but I have 3 days off coming up starting Sunday where I will be tearing through the bike to try and figure out what is going on. I'll report back my findings.
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