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Author Topic: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"  (Read 15062 times)

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PR3VS56

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Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« on: July 19, 2009, 04:55:18 PM »
I knew the N to 1 heavy clunk was due to clutch drag.  What I didn't know was whether the Amsoil Super Shift would stop the clunk AND hold up to heavy heat.

My test this morning was starting it in Neutral, then let it warm up maybe 2 mins while I back out the driveway & put the gloves on.  Then, pull in the clutch & into 1st without hesitation.  Perfect.  So far, the big clunk is definitely gone.  There's still the usual (modest) Harley N/1 gear clash, which sounds cool if you ask me, but it's not like I'm hittin' the gears with a sledge hammer.  I'm sure I could quiet it down even further by holding the clutch in for 3-4 seconds while the gears slow down, but I wanted to give it a real test.  I'm tired of thinking about it every time I start off, and just want to shift into gear and go.  WHY anyone would recommend Syn3 in the primary I'll never know.  Harley could just as easy label their own primary fluid.

I gave 'er a good hard ride yesterday, to build up some heat, and it held up real well.  BUT, nothing compares to a July/August ride through Arizona.  Heading to Sturgis in 2 weeks -- I'll find out how the primary parts hold up to the extreme heat and report back. 
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Redline V-Twin Syn 20W50 (winter), 20W60 (summer) in the crank case.
Redline Heavy Shockproof in the tranny.
Amsoil Super Shift Syn ATF in the primary.

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #1 on: July 23, 2009, 07:45:55 AM »
I have been using ATF in the primary for years. I rarely mention it, tends to raise eyebrows from the experts. Lol.
 Definitely helps the 1st gear clunk. Clutch works very smooth. The transfer case in my late model Dodge uses ATF. It has a chain. The auto trans has clutches. Kinda makes sense when you think about it.

Steve
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Rooster

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #2 on: July 23, 2009, 11:05:29 AM »
Along with the Jim's 131 I added the Rivera Pro Clutch and now it shifts way smoother no more hard clunk.
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PR3VS56

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #3 on: July 23, 2009, 11:15:26 AM »
Quote from: Rooster on July 23, 2009, 11:05:29 AM
Along with the Jim's 131 I added the Rivera Pro Clutch and now it shifts way smoother no more hard clunk.

Overkill for a stock 96inch, but great for your Jim's.  I had a Pro Clutch in my previous RG -- 105tq/108hp.  Perfect.

The clunk is all about clutch drag.
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Redline V-Twin Syn 20W50 (winter), 20W60 (summer) in the crank case.
Redline Heavy Shockproof in the tranny.
Amsoil Super Shift Syn ATF in the primary.

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #4 on: July 23, 2009, 11:30:07 AM »
When I put the Barnett clutch kit in the red bike the company strongly recommended just plain old Type F ATF.
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LarryB

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #5 on: July 23, 2009, 02:45:07 PM »
good info
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Buffy

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #6 on: July 23, 2009, 08:31:55 PM »
Quote from: Twolanerider on July 23, 2009, 11:30:07 AM
When I put the Barnett clutch kit in the red bike the company strongly recommended just plain old Type F ATF.

Did you do it?

And if so, how is it working and for how long?
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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #7 on: July 23, 2009, 09:34:03 PM »
I also use Amsoil Supershift in my bikes and like the way it shifts.  :2vrolijk_21:


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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #8 on: July 23, 2009, 10:54:32 PM »
Quote from: Buffy on July 23, 2009, 08:31:55 PM
Did you do it?

And if so, how is it working and for how long?

Yes.  Actually use ATF in the primary in both bikes.  Though rather than Brand X type F stuff I did grab a synthetic just to pacify myselft for a little better heat tolerance.

Works fine.  No issues at all and no deterioration in any kind of "feel."  At 5k service intervals fluid doesn't smell hot or burned and nothing unexpected in the drainage.
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LarryB

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #9 on: September 04, 2009, 05:00:04 PM »
so how has the amsoil supershift been holding up?
Need an update
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PR3VS56

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #10 on: September 04, 2009, 08:50:22 PM »
Perfect for me.  Worked well riding throught he Mojave in August + Badlands in So Dakota.  No issues whatsoever. 
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Redline V-Twin Syn 20W50 (winter), 20W60 (summer) in the crank case.
Redline Heavy Shockproof in the tranny.
Amsoil Super Shift Syn ATF in the primary.

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #11 on: September 04, 2009, 11:08:36 PM »
I have Redline Shockproof in the tranny. And I have used it in other bikes. It does make it better but the biggest difference was the Clutch change.
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LarryB

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #12 on: September 05, 2009, 07:40:17 AM »
I use the redline in my Tanny too, but I opened this thread back up specifically for the primary
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LC110

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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #13 on: September 06, 2009, 10:59:13 AM »

Several people I ride with, have used and recommend this.

http://www.jegs.com/i/B-M/130/80286/10002/-1&parentProductId=750344
« Last Edit: September 06, 2009, 08:45:56 PM by OldLefty »
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Re: Amsoil Supershift Syn ATF in primary -- stopped the N/1 "clunk"
« Reply #14 on: September 08, 2009, 03:58:27 PM »
I am in jersey. Where can I get this stuff?
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