EFM Auto Clutch — One Year Later

12 Mar

It’s been a little over a year since the EFM Auto Clutch was installed on my V-Star 1300. 

Since then I’ve tried to objectively share my impressions and what I’ve learned in three previous reviews.  Those three reviews are:

EFM Auto Clutch — First Impressions
EFM Auto Clutch — Almost-But-Not-Quite-Final Impressions
EFM Auto Clutch — Final Review

More people than I ever imagined have shown an interest in the reviews, so I want to continue writing about my experiences with the EFM — good, bad, or neutral — in the hope that others will find it useful.  This article talks about some symptoms that developed with my clutch assembly and the solution to that problem.

Last July I left off by saying in Final Review that the EFM Auto Clutch occasionally made a loud rattle/grating and gronking sound on take-off and that sometimes I couldn’t shift from second to first without pulling in the clutch lever.   Over the next several months, both of those issues became increasingly more frequent.  

Later on, the forward pull described in Almost-But-Not-Quite-Final Impressions suddenly seemed to take on a life of its own, and I experienced a few scary butt-pucker moments while stopping the bike.  In fact, in those butt-pucker moments, the clutch pull was so strong I was afraid I might not be able to reign her in.

With the “runaway” clutch pull, I took the bike to Jennifer at Austin City Powersports.  After inspecting and measuring the clutch plates and clearances, she tried varying the spacing washers within the recommended range of clearance and also varied the amount of spring washers.  Garry, from EFM Auto Clutch, suggested making some more adjustments with the spring washers.  Any and all small adjustments were either too much or not enough, and it was impossible to fine tune the adjustment so it worked properly.  None of that worked to her satisfaction.
 
Even though the friction plates still measured within Yamaha specs, they were glazed.  Jennifer replaced the old friction plates and then had to start over with correct clearances and spring washer adjustments.  That solved everything.  I consider myself lucky to have a mechanic who stuck with it long enough to find a fix.
 
So, to make a long story short, last week I picked up my bike, went on a nice, long ride, and can confidently say that riding with the EFM Auto Clutch is back to normal.  In the future, if any of these annoying symptoms show up again, I won’t put up with them for long!
 
Central Texas has had some rain, bluebonnets are blooming, and it’s time to get out and ride!
 
Peace on the Road!
BT

10 Responses to “EFM Auto Clutch — One Year Later”

  1. RandomHero July 16, 2012 at 10:11 pm #

    Thanks for your review. I have a disability in my right arm, and i have never ridden before. Recently ive been bitten by the riding bug and want to give it a try and have been looking at any and all kinds of mods i can do to the bike myself. The EFM auto clutch was one of them and your review is very helpful. Now if i can only find a cheap bike that i can wrench on myself to add it to i would be set to learn. bookmarked your site for future reading. Thanks from San Antonio.

    • biketrash July 17, 2012 at 7:08 pm #

      I’m glad you found it helpful. You’ll have fun doing the work yourself AND riding!

  2. jimmy December 29, 2012 at 7:56 pm #

    I recently tried an EFM auto in my custom chopper with a 3.35 belt drive. I tried different thicknesses of metal plates, but at high rpm’s this thing would not shift using foot and you couldn’t pull the hand clutch in at all. What might my problem be.

    • biketrash December 30, 2012 at 12:13 pm #

      Jimmy, I don’t know anything about the installation, except that there are real strict specs you have to follow. Once you start increasing the rpm, it’s impossible to pull in the clutch lever. (Is that what you meant by “hand clutch”?)

    • Dana March 9, 2013 at 3:33 am #

      thanks , Do you maybe know why my bike wont go up past neutral? my buddy fell off it and now it makes a gnndiirg noise and it only goes to 1st and neutral it wont go up anymore .I asked a couple of guys at a dealership but they wont waste their time telling me and i dont have a way to transport the bike! Any help would be greatly appreciated , Thanks again : )

      • biketrash March 11, 2013 at 10:37 am #

        I don’t know anything about that. Sorry.

  3. Anonymous October 18, 2013 at 2:04 pm #

    EFM answers the phone just about anytime and everyday of the week. If you don’t call with a problem, we can’t help you. We are always ready to help with questions or issues about our product. This is our 15th year of making auto clutch’s for motorcycles.

    330 947 1700

Trackbacks/Pingbacks

  1. EFM Auto Clutch — Almost-But-Not-Quite-Final Impressions « Biketrash Holiday - March 13, 2012

    [...] talk about a problem with the auto clutch and the solution in EFM Auto Clutch — One Year Later Share this:FacebookTwitterLike this:LikeBe the first to like this [...]

  2. EFM Auto Clutch — First Impressions « Biketrash Holiday - March 13, 2012

    [...] talk about a problem with the auto clutch and the solution in EFM Auto Clutch — One Year Later. Share this:FacebookTwitterLike this:LikeBe the first to like this [...]

  3. EFM Auto Clutch — Final Review « Biketrash Holiday - March 13, 2012

    [...] about a problem with the auto clutch and the solution in EFM Auto Clutch — One Year Later. Share this:FacebookTwitterLike this:LikeBe the first to like this [...]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 61 other followers

%d bloggers like this: