The Bypass Shift Kit will work on all ES models, and will fix the Shift Buttons on Hondamatic models (but not the AUTO Mode). Go to subzerosound dot com.

That will cause the computer to stop shifting. The Bypass Kit can fix the shift buttons on an Automatic (with technical support).

@@bubbabaryl3422 Thanks, I have the shift motor jumped at the moment but there is mechanical issues also, so I've got to pull the engine and go through that. Bought the thing to fix up and sell but have quickly realized all the parts I need are no longer available.

A shift computer failure usually results in the gear number flashing "--". A clutch failure will shift gears with the gear number changing in the Display, but then the engine will rev as the clutch slips. Very different symptoms, but it may not be a bad idea to adjust the clutch anyway, though I have not adjusted my clutches on my 2000 Rancher and 2000 Foreman and they run great.

I provide technical support when you buy a bypass kit from me. The amazon and ebay sellers do not provide any support.

subzerosound dot com has bypass kits for most Honda models, including the Pioneer. You have an old Hondamatic which the kit will work in ESP mode only, but not AUTO mode (it will not work with the new DCT automatics). However, you may have a mechanical problem. Contact bubbabaryl at gmail with more details.

They are engine wise. You wouldn’t have this problem with a foot shift😂

Watch the video and remove the front cover. Use manual shift tool to watch every component move as in the video. You can get technical support from subzerosound (dot com).

subzerosound dot com (use a period after subzerosound and then add com) Note that youtube filters out actual website links in the comments.

@@bubbabaryl3422 Thank you! Merry Christmas!!

Yes and no. It will work with the shift buttons only in ESP mode, but not in Auto mode.

You can get technical support from subzerosound. The shift motor is not part of the Bypass Kit. You must have a good shift motor for the kit to work. You should watch the video because it tells you why the shift motor would have problems functioning properly, or you can email subzerosound for help.

Many people have driven through deep water, and regretted it later. Do not be fooled by the youtube videos of ATVs in deep water, because almost all of them have problems after they did that. Ask Honda and they will tell you not to drive through water deeper than 1 foot. The Foreman 500 has as many problems as the Rancher 420, which in both cases is very few. Replacing the computer is very expensive, and it is difficult to remove the old computer and then install the new computer without bending/breaking some of the 50 or so pins. I have one Honda that I could not remove the old computer (without breaking it) because the connectors had glued themselves together with age. Replacing a relay is very cheap and easy.

The ECU Bypass System is available on the web at subzerosound (dot com). It will fix the most common computer related problems. There are other mechanical problems that can cause shift failure, but subzerosound will provide technical support that includes work-arounds for those.

Honda designed the system so that the computer (ECU) only applies voltage for a quarter second or so. When you bypass the computer, the voltage stays on as long as you press the button. The Timer on the Bypass System (from subzerosound) will only apply voltage for a quarter second (just like the original design).

I'm having the same issue with a 350es in my workshop. Did you end up working it out?

You get no support when you buy on amazon. You should buy from the inventor at subzerosound (dot com). He has lots of tips and tricks that will get it shifting like butter.

You did not buy from subzerosound because their kits are $60-100. They have free wiring installation support, and they will replace or refund on request.

Mines doing the same thing. Did you figure out the problem?

You probably have an automatic transmission. The ES models have a shift drum in the transmission that will only turn enough to shift one gear at a time.

The shift motor must be functional (a new one costs about $50).

@@stephenharner5938 ok thanks, do you know if when I pull the shift motor off will the three onboard small gears stay put on the shift motor or with the small gears fall out on ground? I ask as if the gears fall out, I can't see enough to reinstall gears back onto mount.

Wondering myself

Hey KZbinrs! For future reference. 27mm but a 1-1/16" will do the trick too!

And most of the newer left handlebar switches are made in China or Taiwan not Japan anymore.

This video is more about the internal shift mechanism parts but nothing about the installation of wiring the bypass or how it performs after it's installed