What I've learned about the Rancher 400FA AT - Page 3 - Honda ATV Forum
Honda Rancher Discuss all models of the Honda Rancher 350/400/420

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post #21 of 57 (permalink) Old 07-04-2012, 03:57 PM Thread Starter
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Updated...

I updated and added some info to the original post.

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2005 Rancher 400FA AT
Superwinch LT2000
24" Bearclaws
SuperATV disc brakes w/caliper flip
Kolpin front and rear trail boxes w/rack & fuel packs

2005 TRX400EX
13T front sprocket; EZ Pull Clutch
PRM full skid plates and side bars

2003 TRX250EX
22" Bearclaws on rear
DG Alloy Nerf Bars
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post #22 of 57 (permalink) Old 07-28-2012, 04:28 AM
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Hey guys I'm new to the site and trying to learn more about my 06 rancher 400, I'm having an issue with the automatic, works fine in manual, I can shift go in reverse and all is good. In automatic though it started out I could ride in auto until I went to neutral or reverse, then the display would blink, I have to shut it off and switch it to manual and turn it back on, and now it's to the point that when you put it in auto the display just blinks, and I have to power off and restart in manual. Any help would be great, thanks.
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post #23 of 57 (permalink) Old 07-28-2012, 04:05 PM
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^^^Start a thread in the trx400 section and you will get more answers.
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post #24 of 57 (permalink) Old 07-28-2012, 04:20 PM
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Mel, i went through and read your added links and input. boy, what a pleasure to read.
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post #25 of 57 (permalink) Old 08-17-2012, 11:33 AM
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Melsman I just bought a 2006 Honda Rancher 400FA AT with 66 hours on it and loved reading your post. Great information for somebody new to the Hondamatic transmission!
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post #26 of 57 (permalink) Old 08-26-2012, 03:05 PM
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Unhappy What road do i need to take?

I have 400fa at its slipping and has no engine brake. The clutches are good. I have changed the motor oil three times to try to clean it out (used honda oil). I have not checked oil pressure motor does smoke. Does this sound like the Hondamatic or oil pressure. Ihave no codes and it slips worst when the motor get warm.

Last edited by mississippi; 08-26-2012 at 04:55 PM. Reason: misspelled word
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post #27 of 57 (permalink) Old 09-12-2012, 09:33 PM
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Thanks for the great writeup melsman. Big reason why i decided to join the forum.

I'll spare a lot of the details, but I have never been able to have auto work on my bike, have always had to use ESP, even after bringing it in right away for the service bulletin. Well I never trusted the work the dealers did on it, so this last spring I decided to purchase a new ECM from hondapartshouse.com The new ECM took the install fine, no codes afterwards, but auto still goes into too high of a ratio when starting out.

Which leads me to my question: by installing a new ECM, assuming all the sensors are good, do I at least have myself narrowed down to a clutch/oil issue? Or does the new ECM need to be flashed like the dealers had to do when the service bulletin came out? During this next winter I'm going to tear it down, put a new clutch in, and follow your exact oil guidelines.

And just an aside, I understand how that when the clutch slips, the ECM senses the RPM go up and then increases the gear ratio. But how I look at it, since the machine has front and rear wheel sensors, the ECM should also know the bike isn't going fast enough to be able to handle the higher gear ratio, whether the clutch is slipping or not. If a human brain can know that it is not appropriate to shift to a higher ratio, with the proper sensor inputs and programming, an ECM should be able to do the same. So it still seems to me like the programming that Honda did is lacking, if it can't handle any sort of clutch slipping.

2004 TRX400FA (Rancher 400AT)
MotionPro twist throttle kit
12" handlebar mounted light bar
rear rack wheelchair carrier
Cycle Country 48" plow w/ KFI hybrid mount
Champion 3000 lb winch w/ synthetic rope
23" Titan 489's all around (saving clutch)

2011 Grizzly 450 EPS

Others in the family: '04 TRX250TE, '85 TRX250 Utility (X2), '05 TRX90, '06 TRX500FA, '95 TRX400FW,' 88 TRX125
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post #28 of 57 (permalink) Old 09-16-2012, 06:47 PM Thread Starter
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Might be a good idea to approach this in its own thread. That way folks can find it better in a search. In the meantime, let me research the issue.

Melsman

2005 Rancher 400FA AT
Superwinch LT2000
24" Bearclaws
SuperATV disc brakes w/caliper flip
Kolpin front and rear trail boxes w/rack & fuel packs

2005 TRX400EX
13T front sprocket; EZ Pull Clutch
PRM full skid plates and side bars

2003 TRX250EX
22" Bearclaws on rear
DG Alloy Nerf Bars
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post #29 of 57 (permalink) Old 09-17-2012, 09:59 PM
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thanks melsman!

2004 TRX400FA (Rancher 400AT)
MotionPro twist throttle kit
12" handlebar mounted light bar
rear rack wheelchair carrier
Cycle Country 48" plow w/ KFI hybrid mount
Champion 3000 lb winch w/ synthetic rope
23" Titan 489's all around (saving clutch)

2011 Grizzly 450 EPS

Others in the family: '04 TRX250TE, '85 TRX250 Utility (X2), '05 TRX90, '06 TRX500FA, '95 TRX400FW,' 88 TRX125
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post #30 of 57 (permalink) Old 09-20-2012, 01:05 PM
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what lub is to be used on the front brake drum rubber seals that mate the backing plat on a 400 FA
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