[GrantC]

I changed the clutches in my 2007 Honda rancher 400, now when I put it into gear it lunges forward and moves on its own, it does shift through all gears though please help

 

[shadetree]

you need to adjust your clutch. there is a great sticky in the repair section on how to adjust your clutch.

 

[shadetree]

read this ---> https://www.hondaatvforums.net/forums/repair-maintenance/48980-how-adjust-clutch-utility-atv-s.html .

 

[wheelsquad]

I changed the clutches in my 2007 Honda rancher 400, now when I put it into gear it lunges forward and moves on its own, it does shift through all gears though please help

you need to adjust your clutch. there is a great sticky in the repair section on how to adjust your clutch.

Welcome to the forum. First, can you verify your exact model Rancher. The 2007 Rancher 400 is a TRX400FA or FGA (gps model), also known as the 400AT. But 2007 was also the first year of the 420 Rancher in footshift or ES model, but some guys simplify and also call them 400's.

I'm going to assume yours is the TRX400FA though, like mine. In that case, ignore shadetree's advise above because the 400FA has the hondamatic and only has a centrifugal clutch. There is no change clutch to adjust, and you can't adjust the centrifugal clutch. So with the symptoms you are describing, either your idle speed is too high, or you put your one-way bearing in backwards. My guess is you put the one-way bearing in backwards cause you said you just replaced the clutch. One way to verify if it is in backwards or not is with the engine off, and transmission in D, can you push it forward and does it freewheel? If yes, the one-way is in backwards. Also, since you said you can still put it in gear and drive it, how is the engine braking.

Now if yours is a 2007 Rancher Footshift or ES (TRX420FM or TRX420FE), then take shadetree's advice above and adjust your change clutch....

 

[shadetree]

I changed the clutches in my 2007 Honda rancher 400, now when I put it into gear it lunges forward and moves on its own, it does shift through all gears though please help

you need to adjust your clutch. there is a great sticky in the repair section on how to adjust your clutch.

Welcome to the forum. First, can you verify your exact model Rancher. The 2007 Rancher 400 is a TRX400FA or FGA (gps model), also known as the 400AT. But 2007 was also the first year of the 420 Rancher in footshift or ES model, but some guys simplify and also call them 400's.

I'm going to assume yours is the TRX400FA though, like mine. In that case, ignore shadetree's advise above because the 400FA has the hondamatic and only has a centrifugal clutch. There is no change clutch to adjust, and you can't adjust the centrifugal clutch. So with the symptoms you are describing, either your idle speed is too high, or you put your one-way bearing in backwards. My guess is you put the one-way bearing in backwards cause you said you just replaced the clutch. One way to verify if it is in backwards or not is with the engine off, and transmission in D, can you push it forward and does it freewheel? If yes, the one-way is in backwards. Also, since you said you can still put it in gear and drive it, how is the engine braking.

Now if yours is a 2007 Rancher Footshift or ES (TRX420FM or TRX420FE), then take shadetree's advice above and adjust your change clutch....

yeah, sorry...I can't stress this enough...BUT IT HELPS IF THESE MEMBERS WOULD FREAKING GIVE US THE FULL MAKE/YEAR/MODEL !!..LOL. I just assumed it was a trx400fm..oh well.

 

[Manny]

Its possible you installed the one way bearing the wrong way, and your centrifugal clutch is stuck open causing this.

 

[GrantC]

I changed the clutches in my 2007 Honda rancher 400, now when I put it into gear it lunges forward and moves on its own, it does shift through all gears though please help

you need to adjust your clutch. there is a great sticky in the repair section on how to adjust your clutch.

Welcome to the forum. First, can you verify your exact model Rancher. The 2007 Rancher 400 is a TRX400FA or FGA (gps model), also known as the 400AT. But 2007 was also the first year of the 420 Rancher in footshift or ES model, but some guys simplify and also call them 400's.

I'm going to assume yours is the TRX400FA though, like mine. In that case, ignore shadetree's advise above because the 400FA has the hondamatic and only has a centrifugal clutch. There is no change clutch to adjust, and you can't adjust the centrifugal clutch. So with the symptoms you are describing, either your idle speed is too high, or you put your one-way bearing in backwards. My guess is you put the one-way bearing in backwards cause you said you just replaced the clutch. One way to verify if it is in backwards or not is with the engine off, and transmission in D, can you push it forward and does it freewheel? If yes, the one-way is in backwards. Also, since you said you can still put it in gear and drive it, how is the engine braking.

Now if yours is a 2007 Rancher Footshift or ES (TRX420FM or TRX420FE), then take shadetree's advice above and adjust your change clutch....

Yes sorry mine does have to hondamatic, I’ve pulled the one way bearing once again and it was in fact backwards. BUT it still lunges when put into drive or reverse, only way to keep it from lunging is to roll it when engaging gear. Doesn’t sound like it idles high at all

 

[wheelsquad]

I changed the clutches in my 2007 Honda rancher 400, now when I put it into gear it lunges forward and moves on its own, it does shift through all gears though please help

you need to adjust your clutch. there is a great sticky in the repair section on how to adjust your clutch.

Welcome to the forum. First, can you verify your exact model Rancher. The 2007 Rancher 400 is a TRX400FA or FGA (gps model), also known as the 400AT. But 2007 was also the first year of the 420 Rancher in footshift or ES model, but some guys simplify and also call them 400's.

I'm going to assume yours is the TRX400FA though, like mine. In that case, ignore shadetree's advise above because the 400FA has the hondamatic and only has a centrifugal clutch. There is no change clutch to adjust, and you can't adjust the centrifugal clutch. So with the symptoms you are describing, either your idle speed is too high, or you put your one-way bearing in backwards. My guess is you put the one-way bearing in backwards cause you said you just replaced the clutch. One way to verify if it is in backwards or not is with the engine off, and transmission in D, can you push it forward and does it freewheel? If yes, the one-way is in backwards. Also, since you said you can still put it in gear and drive it, how is the engine braking.

Now if yours is a 2007 Rancher Footshift or ES (TRX420FM or TRX420FE), then take shadetree's advice above and adjust your change clutch....

Yes sorry mine does have to hondamatic, I’ve pulled the one way bearing once again and it was in fact backwards. BUT it still lunges when put into drive or reverse, only way to keep it from lunging is to roll it when engaging gear. Doesn’t sound like it idles high at all

Glad we had you check the one-way then.

Did you put in a OEM Honda clutch weigh in set? New springs too? Also new centrifugal clutch drum?

 

[misterclean59]

Weak/overheated clutch centrifugal springs will do this.

 

[GrantC]

Yes I replaced it all, clutches, springs and one way but still does the lunging I’m at a loss

 

[shadetree]

I wish I could help you !, but auto's are not my cup of tea !..lol. if ya had a manual shift ?, i'd be all over it like white on rice..lol.

 

[wheelsquad]

Yes I replaced it all, clutches, springs and one way but still does the lunging I’m at a loss

All OEM parts too?

Are you able to take a video of what it's doing, post to YouTube, then share the LinkedIn here?

 

[Manny]

If it still lunges forward after installing the one way bearing in the correct orientation you could have the idle set too high, or your clutch needs adjusted.

 

[wheelsquad]

If it still lunges forward after installing the one way bearing in the correct orientation you could have the idle set too high, or your clutch needs adjusted.

No clutch adjustment on a 400AT though.