jetting for honda cr85 engine ?

[250rrr]

hey guys ...having a little trouble jetting my blaster- cr85 the main is 48 and pilot is a 150 its usually 20-30 degrees

it seems like its braking up at wide open position.

the bike has v force reeds-spacer-pro circuit pipe and a little motor work done to it but not really sure what was done to it . stock cr85 carb .

any suggestions on mixture and jetting ????????????? thanks!!!!

needle clip is in the middle

carb is a keihin

[Ryko racing]

round slide 122 main at 70 degrees. clip middle stock pilot will be real close.

flat slide 140 main 45 pilot clip middle .....we run em leaner but this will get you real close..... 32 to 1 oil mix...

50 50 c 12 n prem pump gas. on stock motor works well.

[250rrr]

maybe thats my issue ....i was running ams oil 80 to 1 .....

[Ryko racing]

ooooh. i dont think it would make it miss unless its siezing.

run a comp ck. 125 lbs and up ok.

i think you r ok but go to amsoil dominator at 32 to 1.

[250rrr]

ill try that!

[zach R 7x]

If your gonna run Amsoil, run what the bottle specs or don't run it at all. Dominator is designed to run at 50-1, some oil's, more doesn't mean better.
We ran ours at 32-1 and had carb adjustment issues, plus oil leaking out everywhere. Changed the ratio to 50-1 and fixed the issues.

[Ryko racing]

WOW, IVE RUN aMSOIL AT 32 TO 1 FOR 10 YRS IN SNOW CROSS SLEDS AND ATVS AND NEVER HAD AN ISSUE.

I THINK ONE TIME IN OUR CVTS IT WAS A LITTLE RICH AT 32 TO 1 BUT THATS IT.

GOOD LUCK ... YOU ARE REAL CLOSE.

[zach R 7x]

Ryko, I'm not saying you can't run it at 32-1. To each their own.
From what I was told from the guys at Amsoil, it is designed to work at it's best at 50-1, anything more than that is a waste of oil and could hinder overall hp performance.

I do believe there was a thread on this subject a year or so ago, stating the same thing.

To be truthful, I did the something for years, until a salesman convinced me to try the 50-1, never had any problems oil related in two years running it at 50-1.

[Ryko racing]

I agree with you but when i went to 50 1 with it i burned 3 rod bearings 3 weeks in a row.

oil is cheaper. plus if my kid gets beat because of that oil mixture maybe he should take up VOLLEYBALL... LOL....

[250rrr]

jetting was perfect for the weekend ......he won all races!! thanks!!!