sportster overheating need help 380 degrees!
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Stage IV
Joined: Aug 2018
Posts: 4
Likes: 0
From: HAwaii
sportster overheating need help 380 degrees!
as the title says bike gets as hot as 380 degrees F.!
2016 sportster 48 1200cc.
upgrades include high flow air filter and vance & hines big raduis pipes.
running vance & hines fuelpak FP3 and running the maps that i can manually select through the options menu.
tried to adjust the fuel maps to add more fuel to cool things off but no luck.
basically cruising in 2nd gear at 30-35mph (30-40 in hg.) 2200-3000 rpm with vance hines maps they run 14.3 afr.
i tried to drop the afr down to 11.8 at the same settings/configuration and no change at all in temps still running 380 degrees F.
any suggestions?
any help would be greatly appreciated.
thanks
2016 sportster 48 1200cc.
upgrades include high flow air filter and vance & hines big raduis pipes.
running vance & hines fuelpak FP3 and running the maps that i can manually select through the options menu.
tried to adjust the fuel maps to add more fuel to cool things off but no luck.
basically cruising in 2nd gear at 30-35mph (30-40 in hg.) 2200-3000 rpm with vance hines maps they run 14.3 afr.
i tried to drop the afr down to 11.8 at the same settings/configuration and no change at all in temps still running 380 degrees F.
any suggestions?
any help would be greatly appreciated.
thanks
Road Warrior
Joined: Jul 2013
Posts: 1,649
Likes: 443
From: Indianapolis
That is not too hot for a Sportster engine. The Engine Temp on Sportsters is measured on the rear cylinder head.
In my 2013 XL1200C the Stock tune did not enable Adaptive Fuel Control until 356 F, it stayed active until 424 F.
The EITMS (extended Idle Temperature Management System) does not kick in until 464 F.
The Spark Adjust by Head Temp does not start pulling ignition timing until 394 F (that is under high loads only)
it doesn't pull spark in the idle area until 509 F.
Thanks for the info about running richer not cooling the engine down much if at all.
What happens if you go leaner, say to 14.6 to 1?
A 2016 should stay in closed loop between about 14.2 and 15 to 1 Air Fuel Ratios.
In my 2013 XL1200C the Stock tune did not enable Adaptive Fuel Control until 356 F, it stayed active until 424 F.
The EITMS (extended Idle Temperature Management System) does not kick in until 464 F.
The Spark Adjust by Head Temp does not start pulling ignition timing until 394 F (that is under high loads only)
it doesn't pull spark in the idle area until 509 F.
Thanks for the info about running richer not cooling the engine down much if at all.
What happens if you go leaner, say to 14.6 to 1?
A 2016 should stay in closed loop between about 14.2 and 15 to 1 Air Fuel Ratios.
Last edited by shanneba; Aug 11, 2018 at 06:48 AM.
Stellar HDF Member
Joined: Aug 2009
Posts: 3,212
Likes: 212
You should probably take it to a pro. Your useage of AFR is way off, and I fear you will damage your bike if you continue to mess with it.
Also, those head temps are fine. I wouldn't even be concerned.
Also, those head temps are fine. I wouldn't even be concerned.
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,528
Likes: 12,142
From: Indianapolis
I've checked mine and when running for 15-20 miles at 70 mph my FP3 shows head temp of around 380*-385*. I've been told, and as Scuba said that's pretty normal.
I was more concerned with my oil as I would see close to 250* when running 70 mph for extended periods of time. A few weeks ago I installed a Jaggs oil cooler, and it took care of that issue, I'm lucky to see 220* after installing it no matter what the air temps are or how fast I'm riding.
I was more concerned with my oil as I would see close to 250* when running 70 mph for extended periods of time. A few weeks ago I installed a Jaggs oil cooler, and it took care of that issue, I'm lucky to see 220* after installing it no matter what the air temps are or how fast I'm riding.
Thread Starter
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Stage IV
Joined: Aug 2018
Posts: 4
Likes: 0
From: HAwaii
thank you everyone for the responses. very helpful info.
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,528
Likes: 12,142
From: Indianapolis
thank you everyone for the responses. very helpful info.
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
I'm running Redline 75w90 in my primary, and Redline 20w50 in the engine. I made the decision to go all synthetic in my bike.
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Tourer
Joined: Apr 2016
Posts: 370
Likes: 69
From: Laredo, TX
thank you everyone for the responses. very helpful info.
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
will not worry too much about the 380 temp and re flash my map back to the factory vance and hines settings.
hopefully my oils will not burn up.
going to switch out the ATF inside my primary for some 75w90- gear oil as it may be able to withstand higher tems than the ATF thats in there.
thanks again for all the input
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Road Master
Joined: Apr 2016
Posts: 1,031
Likes: 141
From: NJ
my bike runs ~360-380 and around 400 if its at 75mph on the highway, but the oils usually around 210. I think your fine, but dont leave the AFR at 11.8, thats beyond even my 7000rpm @ 100MAP level. WAYWAYWAY rich. just throwing carbon into your cylinders. Ive been told the best torque AFR is around 13.1, and thats plenty rich to keep the temps down.
