ATF in primary
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
ATF is recommended by a lot of clutch makers, like my Alto +1 kit but is not good for most compensators. If you want to run it I would have the CompenSaver oiler from GMR installed or maybe the new Baker compensator.
Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
Many run ATF on their beefed up clutch setups w/ hopped up motors. The $500 clutch setups love it and it's the best thing for them.
No need to run ATF with a stock harley clutch. Not to mention it will speed up the process of you compensator sprocket taking a ****. Stick with synthetic oils and it will be fine.
No need to run ATF with a stock harley clutch. Not to mention it will speed up the process of you compensator sprocket taking a ****. Stick with synthetic oils and it will be fine.
Road Master
Joined: Jul 2013
Posts: 946
Likes: 29
From: my house
I tried it one time and I wasn't happy with the results. Some people report that ATF eliminates the clunk going from neutral into first and makes shifting smoother but I had the opposite results. I quickly drained that stuff out and went back to my normal routine.
Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
I have had synthetic in my bike for a bit over 12k miles on stock 96" and 2,500 miles on my 106" w/ stock clutch & SE spring. I ride my bike VERY hard at high RPM! Didn't slip, shifted perfect, and no uncommon noises. Synthetic is perfectly fine for the stock clutch.
This winter I installed the Barnett Scorpion cause it was only attest of time that my sticker was going to give up, so per Barnett recommendations I used Redline Synthtic Primary Fluid as a good medium for the compensator and clutch. Once the SE compensator is toast I'm getting the Baker comp and running ATF Type F.
Last season or so I ran Spector primary fluid, which is really good stuff. I would recommend that, but many 20/50 synthetics will be fine.
Believe me when I tell you my stock clutch still looked good when I took it out and compensator was in perfect condition and I do wide open throttle shifts w/ just blipping the clutch lever.
This winter I installed the Barnett Scorpion cause it was only attest of time that my sticker was going to give up, so per Barnett recommendations I used Redline Synthtic Primary Fluid as a good medium for the compensator and clutch. Once the SE compensator is toast I'm getting the Baker comp and running ATF Type F.
Last season or so I ran Spector primary fluid, which is really good stuff. I would recommend that, but many 20/50 synthetics will be fine.
Believe me when I tell you my stock clutch still looked good when I took it out and compensator was in perfect condition and I do wide open throttle shifts w/ just blipping the clutch lever.
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Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
If you switch your tans fluid to Spector or Redline (something better than the factory stuff) much of those noises/harshness will be eliminated. I noticed a bigger difference when I switch out my trans fluid than the primary.
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