With or without lowers, I still hear the 5th gear whine on my RKC!

 

 

Seems like the opposite would be true in theory but if that is what you are finding then great.
I had cats on my 103 with the lowers and at lights idling away for a while it would get roasting hot.
I have since thrown the front pipes out in the garbage can and no longer have the problem. Now when it's colder out I wish I had the heat back. LOL !

 

i run the lowers closed all they time, no matter what the temp is and Ive never had any issues with the motor running hot. i do run a HD oil cooler also. i don't know if that has anything to do with it. i don't ride every day and my scoot is not my everyday transportation vehicle either. i only ride when it is clear ands sunny... I'm know call me what you will, but it is what it is... lol

 

I run with the lowers open

 

Some rider take the lowers off. They think the engine runs hotter in the summer-time with them on.

 

Correction: The only thing I'm 100% sure of is taking off your lowers creates an increased air noise that totally covers up the 5th gear noise on an '07 Ultra with 90's/early 2000's vintage Screamin Eagle bologna cut mufflers.

Indisputable accurately described experience. Details, details, details.

 

I have lowers on my SG (not shown in old sig. pic) and keep them on all year. Have a oil temp gauge in the dash, no heat issues since putting on the lowers.

 

I have to disagree.
I had them on my old Road Glide in very hot weather and never had any issues.They funnel plenty of air thru to the motor while moving.

 

I f they lower engine temps, then why is my oil 30 degrees hotter with them on ?