Topic: Flat throttle at mid throttle, not RPM

[ksmith0034]

CB750 K1 with pods and 4 into 1.  Runs like a top up to about mid throttle then falls flat. Picks right back up from about 3/4 throttle through WOT.
Can't remember jet size, but i upsized and moved the main clip according to research on this forum.  My question is this: is my flat spot more likely to be jet size or needle location? (Not looking for pod vs airbox discussion)

[flybox1]

If you truly are at mid throttle (because you marked your control and grip beforehand  ), and you go by those jetting overlap charts... you have the pilot jets though-put maxed out, are in the meat of the needle jet, and the main jet is just starting to kick in.  This area is all needle clip range. 
IIWM, and I knew my pilot jetting was spot on, perfect plug color, I would move on to doing 1/2 throttle plug chop, and do it as accurately and as long as I could.
New plugs into a hot engine, and ride right in that 1/2 throttle position where the bike chugs.  Your plug color will show you what to do.
Post a pic of your results.

[ksmith0034]

Yep, it was the needle. I moved it one clip notch back to the stock position and now it runs like a top!

[flybox1]

Yep, it was the needle. I moved it one clip notch back to the stock position and not it runs like a top!

Ahh...sweet!