The Zephyr Zone

I have an S1000rr and its an awesome bike that's for sure , but yours steals the show good work Jr she looks well tidy

i have an s1000r at the moment which replaced a couple of yamaha r1's and a z1000 and i have found that every year i have owned it the zephyr has clocked up a higher annual mileage than the other bike in my garage

Thanks.
Today was good motorsport day. Crazy street racing, same as isle of man tt. I forgot to take pictures, only one bad video.
Sadly yesterday one driver crash badly and passed away later in hospital. That is always terrible to hear.
We have booked track day (no not with zeph) in start of July, but now I'm kind of scared. I think I'm getting old.

First test ride with flatslides.
After 5000rpm it's good and hard pull. Mixture little at rich side. Cruising with small throttle
opening, it's very lean. Ordered bigger pilots.

Which jettings you ride? i Also use the RS36 on my 1100 - and have same mixture Problems like you

All stock. 135 mains, 17,5 pilot,
9chy10-99 needles (supposed to be same as stock y3)
Emulsion tubes stock y6
acc pump hit's on all most immediately when opening throttle.
I opened idle mixture screws little more, they are now 1 full turn open. Idle afr is now 12 and it helped little at low speed cruising.
I ordered 30 pilot's, I think next 20 is so small change, that it's better to get big leap.
4.8€ eatch, so I can order more when tested 30.

Forget to mention that i raised needle to the 3 position from top. (stock is 2)

So idle is afr 12 cruising 15-16 afr and full open 11-12 afr.
Do you have mikuni tuning manuals? They are good reading, basic stuff though.

Raised needles one more groove, so they are now second lowest groove. Little bit better but just off idle cruising still very lean. Top end very rich.

Nice ride today with my friends though.

Manuals i have - helpfull Informations in there You use the RS38 - right? my needle in the RS36 are 9DZH3-50 in Stock and now 9DZH3-30. Main is at the moment 130

Greetings

Yes I have rs38.
Mikunioz.com is best site finding parts and manuals, however they don't list witch needle is ritcher. In this site is good listing for needle sizes.
https://www.jetsrus.com/a_jets_by_carbu ... ikuni.html