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2008 trx500fga problem

6.2K views 11 replies 3 participants last post by  chathamman  
#1 ·
hello to all
i picked up a used 2008 Rubicon 500 model trx500fga
it ran perfect on the test ride when i looked it it but started this when stared it up to drive it off the pickup truck
the problem i am having when i start the 4 wheeler it fires right up but will not rev it shakes and runs like it has full choke on
but when you put it in gear its ready to go runs perfect revs right up still hits 97 KPH on road
all gears work and reverse and no flashes on readout when it takes a fit up i put in new spark plug
cleaned air filter changed oil filler and oil

if you rode a atv that has over ride for reverse and not push button in when it in reverse that is what this Honda is like in neutral
thanks for looking
 
#2 ·
Make sure the right handle brake leaver is fully returned.. has a safety switch in it
 
#5 ·
The switch is for starting in gear(stalled in thick mud) make sure it returns. (pull right hand brake for start in gear)
 
#6 ·
OK the switch is not my problem mine will start in gear
like i said sometimes after it starts up it will not rev up its like the choke if on then turn key off and back on it runs like it should
and sometimes put it into gear then motor will run like it should
is there something in the carb that might cause this
i do not use the choke to start it so thinking its not that
 
#8 ·
If the start in gear switch is activated the machine will studder, its a safety thing so you dont take off fast when starting in gear. Next time it studders make sure brake lever is fully released.
 
#10 ·
ok i had time to unhook the little switch and no luck it still does it
when it runs like this i can put on full choke and it does not change the sound of the motor
and sometimes you turn off key and back on and away you go
and took a small screw driver and lifted up the slide in the carb when it ran like this and no change at all
 
#11 ·
You unplugged both switches? Ones or the bake light and the other is for the start in gear. Is it displaying the R when in reverse? Try pulling the lever back a touch, it might need adjusting and isn't operating the switch on the shifter correctly.

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#12 ·
yes i unhooked the two wires on the safety switch
the brake light still works so i got the right two wires because it wont start in gear now
yes the R is displaying when i go into reverse
so there is a other safety switch on the gear shifter ?

i will cheek it after work because sometimes when you put it into gear the motor runs like it should
thanks