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2017 Heritage Classic runs really hot

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Old Oct 14, 2017 | 08:40 AM
  #11  
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OP; Cheapest option is to get a tuner and change AFR to add some fuel. From there, exhaust swap & stage-1 are your next options to cool 'er down.
 
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Old Oct 14, 2017 | 08:49 AM
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If you just richen the fuel mixture without removing the stock cat the exhaust pipes can get hotter as the cat is coping with more un-burnt fuel vapors. Best to do together imo.
 

Last edited by Thingfish; Oct 14, 2017 at 08:52 AM.
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Old Oct 14, 2017 | 01:18 PM
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OP here. Yes, everything on it's stock, except for lowering the bike with replacement shocks.

The cooling fans sound like the best way to go. Has anyone used the Harley Davidson cool flow fan?
Does it pull hot air from both sides of the bike or just from the exhaust side?

Thanks.
 
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Old Oct 14, 2017 | 01:47 PM
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Originally Posted by Schoolboy
OP here. Yes, everything on it's stock, except for lowering the bike with replacement shocks.

The cooling fans sound like the best way to go. Has anyone used the Harley Davidson cool flow fan?
Does it pull hot air from both sides of the bike or just from the exhaust side?

Thanks.
I've used the Wards cooling fan(s) on both my SGs, they pull air in from the left and blow across the engine to the right. IMO you best solution is a Stage 1(AC, Pipes & Tuner). Check out FuelMoto, they offer some decent priced packages.
 

Last edited by aviscomi; Oct 14, 2017 at 02:16 PM.
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Old Oct 14, 2017 | 08:49 PM
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Twin Cams right check number 17 and 18 reference maybe even reference 20 who knows.

http://www.jamesrussellpublishing.bi...buyharley.html

I'll save you the time it's only an engine right you guys don't need to read the whole thing right ha ha.

17. Overheating: Harley-Davidson engines run hot. The 88 cubic inch engine ran hot and at the high limits and the 96 cubic inch engine runs hotter yet which is not good for the engine. The 110 cubic inch engines run exceedingly hotter and so much so a class-action law suit was filed against Harley-Davidson from riders being burned from the engine heat (mostly from the rear cylinder near the rider's thighs). Heat burns to the skin is not the only problem as heat is an engine killer and the hotter these big air-cooled V-twins run reliability falls drastically. Don't expect engine longevity with a 103 or 110 or 113+ cubic inch air-cooled V-twin such as the Harley-Davidson design. Clean synthetic engine oil and a large external engine oil cooler is a must-have accessory, but it only helps engine cooling and not cure these serious excessive heat problems that self-destructs the engine.

18. The Harley-Davidson engine looks nice with all the chrome, but if you really look good you will notice the engine design is so archaic it is truly a problem to behold for there are way too many moving parts inside the engine and in the primary case to wear out and break down. The transmission is small in size and that means smaller, weaker shafts, bearings and gears are inside. Way too many moving parts each over-stressed! This is why you see so many in shops being repaired and broken down on the side of the road being towed back to the dealers. The engines also run very hot when stock and even hotter when the engine is "hopped-up" and this old engine design just can't tolerate all of that heat. Oil coolers will help, but will not shed enough heat to stop engine damage from excessive wear. Even full synthetic oil won't stop the wear due to hot spots in the engine. Even replacing a drive belt will cause you grief even if you do it yourself for it will take you hours of labor. It will be expensive for a shop to replace your drive belt. And with the cam followers going to bite you and blow up your engine you need to consider replacing those followers often like every 20,000 miles (30,000 miles if you have the newer hydraulic followers). But they can even fail quicker in some cases. The 103 cubic inch will evolve into even higher 110 and 113+ cubic inch engines that will create even higher stresses and heat and reliability is going to suffer even more. The way I see it, I will not buy a new Harley-Davidson Twin-Cam engine due to all these defects.

Maybe read it all it's a little alarmist , the sky is not falling ,your bike should be fine if you just look after your toys !
 

Last edited by badcooky; Oct 14, 2017 at 09:55 PM.
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Old Oct 14, 2017 | 09:48 PM
  #16  
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Perhaps some insulated boots would help.
 
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Old Oct 14, 2017 | 10:00 PM
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Sunscreen ?
 
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Old Oct 17, 2017 | 10:51 PM
  #18  
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Wow, this is a doom and gloom article! Is everybody just drinking the motor company Kool Aid? Where's the outcry?

I've known guys who have had Harleys for years and I've not heard of this before. Anyone out there have these dire consequences?
 
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Old Oct 17, 2017 | 11:04 PM
  #19  
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I remember my legs burning up when I first got my bike. I fattened up the fuel, changed cams and turned on the etms. Turning on the etms was the big game changer, the rear cylinder shuts off when you're sitting at a light.
 
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Old Oct 17, 2017 | 11:28 PM
  #20  
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What is the etms?
 
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