Second Gen Carburetor Flaw Revealed!!!! - Page 14 - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #131 of 132 Old 09-25-2019, 08:59 AM
5th Gear
Join Date: Jan 2011
Posts: 4,328
If you read my posts, Retfird, perhaps YOUR favorite book is War and Peace!

Again, just for the record, I've never denigrated the 22-cent mod, or even swapping OEM needles for replacements of proven merit.

The 22-cent mod raises the needle; so does an O-ring kluge. A different needle profile alters air-fuel mixture, as doubtless does grinding a needle by hand on a bench grinder. Now . . . where lies the innovation/discovery following these well-worn paths (influence mixture by raising needle/changing needle profile)?

By all means, try the modification under discussion, and report (with, one hopes, repeatable, quantifiable testing methods and data) your results. BTW, incidentally, the cam advance plays to decidedly MIXED reviews. Quantifiable maintenance consequences of the Thermo-Bob remain elusive (although the device performs as advertised, enhances coolant temperature stabilization and at a higher nominal operating temperature).

Innovators, thinking "outside the box," have brought forth useful discoveries. Re-inventing the wheel (as in, raising/re-profiing the needle) isn't one of them.

Then again, COLD FUSION was once "discovered" in Utah. Unfortunately, however, the phenomenon (cold fusion) has never been detected beyond Utah's borders!

“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre
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post #132 of 132 Old 09-25-2019, 09:31 AM
4th Gear
Join Date: Aug 2010
Location: Kelowna, B.C.
Posts: 2,341
not getting into the middle of this one but any mod that corrects the factory lean condition and has the proper and desireable AF mixtures throughout the range will use more fuel.......then again, I don't think running overly lean is a good way to increase fuel economy. There is no free lunch.

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