[fostri]

Hi I´m new here.

My cousin has a Foreman TRX500FM 2007 that hesitates while changing gear from 2nd to 3rd exspecially when going up hill. He says it does it too in 1st gear, but I didn´t find that yet. He left it with me to find out, so I´ve been driving it around and trying to find out what the problem is. In normal driving on the flat, it does´nt do this, at least not obviously.

I´m thinking of bent or loose gear fork or something like that, but what do you, gurus, think?

This ATV has done 3200 km and never had a problem.

Regards
fostri

 

[TRX2fiveO]

Welcome to the Forums!!


I would start with the basics... spark plug check, air filter check trash in the fuel tank, ect. when you say hesitates what do you mean? bucking/jumping or kind of dead feeling or slipping feeling? you may need to adjust the clutch, autos do have an adjustment.

 

[fostri]

Well "hesitates" is probably not the right word (I´m Icelandic and not fluent in English), but it is like it does not take the gear properly. There comes a noise and then bang and then it takes the gear, but only under load such as going uphill. It has not showed this on flat ground. The owner claims it is the first gear and third gear that act like this, but I have not found it in first yet, only third.

Is it the same gear fork that shifts to first and third?

 

[TRX2fiveO]

I would get a manual handy... Start inspecting the drive train for any bad areas axles u-joints ect. and maybe do a clutch adjustment and see if that cures the issue

 

[mud99]

Welcome to the forums.

 

[fostri]

Thanks for the reply.

I will ask the owner for his manual (he said that he had one) and do a clutch adjustment, before I strip it down.

 

[Helmut]

I don't know which manual he has, but you will probably need a repair manual instead of an owner's manual.

 

[fostri]

He only had the owners manual, so there is no help in it. But I´ve been studying a partlist and I cannot think of anything other than bent shift fork for 1 and 3 gear. If it was a clutch problem I would assume it would affect all the gears, not only 1 and 3.

Am I seeing this wrong?

 

[mhayden]

I have a similar problems. I have a 03 Forman Rubicon and it runs great in ESP and D1, But when I run in D2 and run up a hill it will not down shift to a lower gear. So when I stop on a hill and wait a couple seconds I can take off and it starts in first gear and will go through all the gears until I come to another incline and the same problem happens. It runs fine on level ground but when it comes to a incline it just lags and wont down shift.

I ask the boys at the local Honda shop and they told me a couple things to check, like making sure the my oil was not overfill, which it was ok.

I was told that there was a level sensor on this bike.....which Im not sure what that does.

Any thoughts

 

[ddrumman2004]

I have a similar problems. I have a 03 Forman Rubicon and it runs great in ESP and D1, But when I run in D2 and run up a hill it will not down shift to a lower gear. So when I stop on a hill and wait a couple seconds I can take off and it starts in first gear and will go through all the gears until I come to another incline and the same problem happens. It runs fine on level ground but when it comes to a incline it just lags and wont down shift.

I ask the boys at the local Honda shop and they told me a couple things to check, like making sure the my oil was not overfill, which it was ok.

I was told that there was a level sensor on this bike.....which Im not sure what that does.

Any thoughts

I was told that D2 on my 07 Rubicon was for more like open road type conditions where you really don't need the torque like in trail conditions.
I drive mine in D1 under all conditions and use ES from time to time.
How does it run in D2 on flat level ground?

The level sensor you speak of....could you have meant "angle" sensor? If so, that sensor tells the control unit what "gear" the transmission is in.

I used to own a 91 Goldwing that had a "bank angle sensor" on it that would shut the bike down if it was laid over.