[shiboy0721]

ok i got a 99 trx 400 4x2 and it runs but wont go the clutch engages and trys to move but seems like it cant on the newby post someone mentioned the centrifugal clutch and to be honest i see what they are talking about but i havent tore into the quad just yet i want to know what to look for and what all i will need to replace when i go in should i get the shoes spring and housing or just rip it open and replace as i think needs it? im new to the quad thing but not motors or clutches im handy under a hood of life sized vehicles and RC cars just not those that fit right in between. is the centrifugal clutch in a dry housing i mean im totally lost when it come to a quads inner workings thanks to all who respond

 

[shadetree]

ok i got a 99 trx 400 4x2 and it runs but wont go the clutch engages and trys to move but seems like it cant on the newby post someone mentioned the centrifugal clutch and to be honest i see what they are talking about but i havent tore into the quad just yet i want to know what to look for and what all i will need to replace when i go in should i get the shoes spring and housing or just rip it open and replace as i think needs it? im new to the quad thing but not motors or clutches im handy under a hood of life sized vehicles and RC cars just not those that fit right in between. is the centrifugal clutch in a dry housing i mean im totally lost when it come to a quads inner workings thanks to all who respond

no the centrifugal clutch is not in a dry housing..it gets soaked in oil as the motor is running..the centrifugal clutch acts like a power take off so to speak..the more gas you give the bike..the faster this spins..as it's spinning..it forces out 4 arms that grab onto the outter bell housing..when this happends..it then transfers the power to the clutch disk..also known as a clutch pack < this is if your bike has clutch disk >...then this transfers to the transmission..then to wheels..now you know the basics on atv's...lol..if you need some help on what to do..just holler ..someone will point you in the right dirrecton.

 

[Helmut]

If you have a 400EX, then you don't have a centrifugal clutch, so that eliminates that. The only clutch you have is the shift clutch with the fiber and steel discs. Only the utility models have the centrifugal clutch.

 

[SlammedRanger]

^^^ Agreed!

 

[shiboy0721]

well then

it is a race quad what else would stop it from moving it will try everytime butafter it moves maybe an inch thats it then you pull the lever and she rolls back to the free stance let her go and she move forward and inch and thats it?????????????? imma tear it apart this weekend if i aint working

 

[shadetree]

check and replace your clutch disk..more than likely they are worn..and needing replaced...and make sure to soak them in oil made for wet clutches before you install them..and also make sure you stack them back in the basket in the right order..or they won't work..after you get it all back together..adjust the clutch free play..you should have a nut on the side of the case..it should read with an arrow..increase or decrease pointing to the left and right...after thats set..try it out....make sure you install the disk in the right order..or they wont work.

 

[Helmut]

check and replace your clutch disk..more than likely they are worn..and needing replaced...and make sure to soak them in oil made for wet clutches before you install them..and also make sure you stack them back in the basket in the right order..or they won't work..after you get it all back together..adjust the clutch free play..you should have a nut on the side of the case..it should read with an arrow..increase or decrease pointing to the left and right...after thats set..try it out....make sure you install the disk in the right order..or they wont work.

I think he said the clutch discs have already been replaced. I would check to make sure the clutch has been put back together right. I can't think of anything else that it could be. There's nothing else left that it could be. Have you got the cable adjusted right?

 

[Helmut]

after you get it all back together..adjust the clutch free play..you should have a nut on the side of the case..it should read with an arrow..increase or decrease pointing to the left and right

No Shadetree, a 400EX don't have that clutch free play adjustment. Only the utility models with the "auto clutch" has that free play adjustment. It actually shouldn't be called an "auto clutch", though, because it's really not an auto clutch as the foot shifter actually engages and disengages the clutch. On the 400EX the only adjustment is going to be at the cable. I know that you know this, so you must not be aware that he is talking about a 400EX.

 

[jgar]

Buy a clutch kit, it has the discs and springs. Buy a service manual. The manual will also show you how to adjust the clutch.

 

[shiboy0721]

to all who have posted

thanks for all the tid-bits of info i tore it down and put it back together and noticed that the trusted mech. used RTV silicon as a sealant to re seal the clutch casing clogging the oil galleys so after four hours of extensive cleaning and silicon removal i got the 400ex to move but the new clutch that they installed was probably not reinstalled correctly and it wore itself down so i have another clutch on order through the dealer here and i have to wait about a week or two to get it one of the downers of living in Alaska i guess it takes twice as long for something to ship and be received ill post again after i get it put together without RTV silicon.....

oh and it does have two adjustments for the clutch lever. one is near the actual lever and the other is near the clutch casing......just and after thought

 

[submarine 300]

thanks for all the tid-bits of info i tore it down and put it back together and noticed that the trusted mech. used RTV silicon as a sealant to re seal the clutch casing clogging the oil galleys so after four hours of extensive cleaning and silicon removal i got the 400ex to move but the new clutch that they installed was probably not reinstalled correctly and it wore itself down so i have another clutch on order through the dealer here and i have to wait about a week or two to get it one of the downers of living in Alaska i guess it takes twice as long for something to ship and be received ill post again after i get it put together without RTV silicon.....

oh and it does have two adjustments for the clutch lever. one is near the actual lever and the other is near the clutch casing......just and after thought

Man they could get it to you quicker with a dog sled!!!!....lol

 

[shiboy0721]

after some more tinkering i got it to move but snapped the clutch lifter piece. so i don't have a working clutch lever it does move however the clutch doesn't grab like it should its slipping real bad only only a few more days until i get the new clutch...... and to make matters worse the end of the clutch shifter spindle snapped off but i ain't tearing into that until i rebuild the motor so i think a little bit of tack welding will have to suffice for now...


again thanks for all the help... oh and there are a few pics coming soon

 

[honda440exrider]

make sure you get the washers in the right places when you put the clutch back togeather or it wont disengage and run you into something

 

[450RMAN]

Did you order just the Clutches or did u get the spacers also? How do the clutches look are they smooth? And are they in the right order? it should be clutch spacer clutch spacer and so on, Are u torqing the Basket cover to the right spec?

 

[shiboy0721]

its done

so i got the new clutch discs in and that was all so i felt a little cheated anyway after putting it all back together and welding the kick lever back onto the the gearshift spindle i ran it and she rose right up on the back tires i took her out on the dike here near north pole and she ran like a champ so..... 500 for the quad and 90 dollars worth of parts i think i stole that machine.... now just to get her new tires and she will be straight for a long time..... shipping to Alaska is a killer especially on tires..... the best deal for tires that are here is 127.95 a piece standard holeshots...... online i can get them for 69 a piece but then about 80 to 100 dollars shipping......its a killer


again i thank all of you for your input and knowledge base ill be back again soon im sure.....

oh and i cant adjust my clutch lever at all i have it fully extended just to get it to hook up to the clutch lifter and i have about four inches between the clutch lever and the handle.... is that normal for the 99's or is there something i should be able to do to fix it

again thanks to all of you

 

[Helmut]

oh and i cant adjust my clutch lever at all i have it fully extended just to get it to hook up to the clutch lifter and i have about four inches between the clutch lever and the handle.... is that normal for the 99's or is there something i should be able to do to fix it

You should be able to adjust it. Have you tried both adjustments? Are you sure it has the right cable on it?