How much does temperature change mess with the jets?

[117bigdog]

I was just wondering. All you tech guys. I'm going to get my bike dyno'd again in the next few weeks. My concern is its now in the 70's sometimes low 80's. Now if I get it dyno'd now and the A/F is perfect and summer time comes and the temp is in the mid 90's, Am I going ot see or feel a difference? Would I now need different jets or is that much of a temp change not going to effect the bike too much. Is there a certain ratio that when the air temp moves a certain amount of degrees you should move your jets a certain amount? What do you guys think? I guess I was bored tonight thinking about this!:loony:

 

[lee]

I think from memory my PSI carb requires a click of the needle for a 20 degree temp change and 4 clicks are equivalent to a mikuni jet change. From low 80's to mid 90's I would guess you should be ok. Maybe one size smaller but that should be it.

 

[alhall88]

You have the R&B pipe with the bung in it and really you if you get your own air/fuel meter it takes allot guess work out.

 

[lee]

I got my LM-2 last week and the bung has been welded in - dialling it in is my next job...one of my next jobs :2thumbs:

 

[117bigdog]

how much are one of those a/f kits? where is a good place to get 1?

 

[MARV]

300 on ebay