[mll1000]

For most street riding, I seem to be in 4th gear, I know the bike generally needs to be reved but I have found sometimes at low or mid revs flat spots happen, anybody else.

 

[Aufitt]

Maybe something wrong, fuel type, etc.


Mine pulls away from as low as 5-6000, **** stong from 7-10,500 then slightly tapers off.
goes a little flat from 11500-12,2250 but hopefully a Full system and fuel controller will tidy that up.

 

[Lollingthunder]

What rpm are you shifting at from 3rd to 4th?

 

[mll1000]

shifting maybe 7k but then decrease speed but still stay in same gear, think it may be some bad gas or something, it is very slight

 

[Yamamama]

Torque and horsepower curves are never perfectly smooth - if it's "very slight" it's probably normal.

Here's a baseline run on a California bike - note the flat spot in the torque curve around 7400-8K -
https://i1.wp.com/www.yamahar3racing.com/wp-content/uploads/2015/05/Yamaha-R3-oem-stock-CA-bike.jpg

 

[Stirz]

Below about 6000, you're only making about 15 hp - these bikes are happier at higher rpm. Maybe you need some of these:

 

[Slowmo84228]

Lol

 

[Maxpressure520]

R3 s are rev Monsters, so keep your rpms up (After Yamaha approved break in, of course.). Ravens mechanic told me to keep her between 8 & 13k rpms. Ravens pushing 35,000mi these days, and shes an absolute Sweetheart! He said she doesnt even begin to make real power until around 9k rpms!!

 

[Dreadwil]

Necro first post with a lol

lol