2002 twin cam 88 low idle when hot staying steady @1000rpm just feels too low and sha
 

New member and thanks for having me .2002 ultra classic bike cold starts fine after a ride engine stays @1000 rpm and is not right. oil pressure is good
new temp sensor new IAC new intake seals cleaned and removed throttle body. Battery is good new plugs bike has a historic code. This happened on my way home one night has been idling like this for a month now
​​​​​​ things I've checked so far
vss sensor cleaned
Crank sensor cleaned
Check for vacuum leaks
Check for codes
Looked at exhaust system
Check all wire connectors and fuel injector wires
as of yesterday having a starting problem it's random I have to give it a tiny bit of throttle for it to fire up now and other times just push the button.

So when hot the idle stays at 1000 rpm. I don't think that is off, You could take some kind of tuner and maybe increase it to 1100. I am guessing the bike is new to you, and you think 1000 rpms is low. If it is steady, and not bouncing, I think fine. You can look in the manual for what it should.be

The 1000rpms feels like 500rpm very low and shakes so I replaced the front engine mount with Harleys new style. It just idles low to we're it's like spark nocking

What does this mean????? RPM is an RPM. You do know rubber mounted motors shake like a paint can mixer at idle? I think you gave your bike a nice refresh which i think is good idea based on age, but are probably chasing your tail. But I have not seen the bike.

You first harley or first rubber mounted harley?

On hot idle after a 30 mile ride the engine drops to 1000rpms shakes like all engine mounts are 50 years old wants to spark knock until I rev it back up. If it was idling @1050-1100 I wouldn't be joining a forum and asking questions

Holding a good idle cold
 

This is cold start and idle

1000 rpm is the proper idle.

you’ve got something else going on.

How can a Post a video

Do you know how many M8 owners would love to have their bikes idle like that?

That is as close to the classic HD sound that you're going to get out of a Twin Cam without spending some serious $.

It does sound like it may have some aftermarket cams in them.

That said, if you want the idle higher, adjust it higher.

I ran both my '00 Road Glide (injected) ans '02 Dyna (carbed) between 950 and 1050 without issue.
Shaking at idle is normal, and as above I also think you need to look elsewhere.

1000 RPM, is the idle speed spec. If your idle quality is poor, other than speed and or you have off idle transition isuues, maybe you should take the bike to a pro and have it diagnosed. Your homemade 2-2 trie dual exhaust requires the bike toa be re-tuned. That could also be allmor part of your issue.
m

Thank you for your intelligent response
 

nothing is homemade on my bike. I was hoping maybe someone smart would have a answer or similar problem to when the bike is up to Temp after a 20-30 minute ride and the bike would idle low . I fixed it today by installing a new crank sensor. Thank for your input it really helped me and other people who have similar issues when they come across a post like this

Thank you for your intelligent response
 

nothing is homemade on my bike. I was hoping maybe someone smart would have a answer or similar problem to when the bike is up to Temp after a 20-30 minute ride and the bike would idle low . I fixed it today by installing a new crank sensor. Thanks for your input it really helped me and other people who have similar issues when they come across a post like this

https://cimg1.ibsrv.net/gimg/www.hdf...685547b94a.jpg
Rinehart exhaust isn't home made

Multiple posts pointed you to the fact that 1000RPM is not a “LOW” idle for this bike.

the thousand rpms feels like it was 500rpms that's how low it was feeling. The crank sensor was leaking oil and melted on the top. I changed it and bike is steady 1050

In your OP you said you checked and cleaned the crank sensor as well as other potential sources of the problem thereby eliminating the crank sensor as a potential source of the problem. Had it not been for that, "someone smart" might have suggested the crank sensor as a potential source of the issue; problem solved. However, you kept insisting the 1000rpm idle speed was "not right" and if the idle speed was 1050rpms, you would not be on the forum asking questions; you even replaced the motor mount. Maybe after several members pointed out that a 1000rpm idle speed was normal, you decided to back check some things and found the crank sensor problem that, apparently, you missed in your initial diagnosis.

I read all your replies and, honestly, caught a bit of attitude in a couple which I am sure other members caught as well. I see that you are a new member and suggest that if you want to hang around; lose the attitude. Lots of "smart someones" here and all wanting to help.:icon_wink:

1000 or 1050 is splitting hairs. We are not there to see. But first question to me was,is this your first rubber mounted motor. But you got it fixed good to hear
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i'm sorry, but anyone that watches your video is going to see that your header pipe for the front cylinder is homemade, not Rinehart or anyone else, sorry it hust is what it is. It hides under the heatshield, so no big deal, and it doesn't change the fact that true dual exhaust needs to be tuned.

good luck in your journies here,,,remember, this place works a lot like a computer, garbage in=garbage out. lots of good info here, so dont be discouraged.
m