2018+ Softail Models Breakout

Question about normal sounds

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Old Oct 24, 2019 | 01:20 PM
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I bought a new 2018 Heritage 114 in May of this year. This is my fourth Harley, and I’m pretty well-versed in the brand, but this is my first M8. Since I bought it, I’ve put 12k miles on it. Amsoil in all three holes. Bone stock mechanically (thanks, California), save for the K&N knock-off air filter Harley sells. Over the past few thousand miles, I’ve noticed some new sounds. It seems to make a light knocking/rattling. This happens after it’s warm, is not speed dependent (does it at all speeds but most noticeable around town going slow), and comes and goes at random. I can’t pinpoint the noise, either, but it sounds low. I’ve read that the primary chain can be the culprit and that it’s normal, but I wanted to see if anyone else is experiencing the same thing and I’m just being **** retentive. I’ve also noticed the valve train gets louder from time to time, but I believe this is also normal.

The bike still has stock exhaust due to California’s stupid rules. I don’t want to spend $1500+ on a new exhaust setup/tuner for just a little more sound. Probably the reason why I notice all of the engine noise.

Love the bike. It’s super comfortable and is an excellent commuter for my 100+ mile/day trips.
 
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Old Oct 24, 2019 | 01:57 PM
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Originally Posted by beef_weezle
The bike still has stock exhaust due to California’s stupid rules. I don’t want to spend $1500+ on a new exhaust setup/tuner for just a little more sound. Probably the reason why I notice all of the engine noise.
These slip-on mufflers are CARB compliant. I like 'em. CARB Compliant Mufflers
 
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Old Oct 24, 2019 | 03:37 PM
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Originally Posted by Hulkss
These slip-on mufflers are CARB compliant. I like 'em. CARB Compliant Mufflers
I’m aware of those, however it would still need a tuner (~$500). Eventually...
 
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Old Oct 24, 2019 | 03:52 PM
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No tuner is needed for those slip-ons, bike will run fine.
 
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Old Oct 24, 2019 | 04:58 PM
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I appreciate the help, but does anyone have an answer to my original question?
 
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Old Oct 24, 2019 | 05:31 PM
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Originally Posted by beef_weezle
I appreciate the help, but does anyone have an answer to my original question?
No meaningful answer is possible without a recording for us to hear.
 
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Old Oct 24, 2019 | 05:42 PM
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Besides the primary, it could be loose exhaust components, very common.
 
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Old Oct 24, 2019 | 08:25 PM
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Next time it makes the rattling now put pressure on your gas cap. I was chasing a different rattle that would come and go until one day I noticed the gas cap rattling and found the issue.
 
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Old Oct 24, 2019 | 09:33 PM
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Gas cap is definitely one of the rattles I'd think., also my luggage rack rattles, if you have one lean back and hold the luggage rack!
 
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Old Oct 25, 2019 | 04:56 AM
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Originally Posted by beef_weezle
I bought a new 2018 Heritage 114 in May of this year. This is my fourth Harley, and I’m pretty well-versed in the brand, but this is my first M8. Since I bought it, I’ve put 12k miles on it. Amsoil in all three holes. Bone stock mechanically (thanks, California), save for the K&N knock-off air filter Harley sells. Over the past few thousand miles, I’ve noticed some new sounds. It seems to make a light knocking/rattling. This happens after it’s warm, is not speed dependent (does it at all speeds but most noticeable around town going slow), and comes and goes at random. I can’t pinpoint the noise, either, but it sounds low. I’ve read that the primary chain can be the culprit and that it’s normal, but I wanted to see if anyone else is experiencing the same thing and I’m just being **** retentive. I’ve also noticed the valve train gets louder from time to time, but I believe this is also normal.

The bike still has stock exhaust due to California’s stupid rules. I don’t want to spend $1500+ on a new exhaust setup/tuner for just a little more sound. Probably the reason why I notice all of the engine noise.

Love the bike. It’s super comfortable and is an excellent commuter for my 100+ mile/day trips.
 
Reply
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