more F N R problems

ok in my other post i was talking about my F N R on my new craftsman givin me problems. I got the kill switch problem fixed but she still " lurks and lunges " basically if i put in drive and let out on the clutch theres a second or two delay before she starts to creep, once shes movin she lunges real bad, does this in reverse to. one mower mechanic said it was a s ealed unit and my best bet was to ride it around and see if it breaks itself back in. all the brakes are disconnected so its not that and the belt is tight as a drum.....any ideas? thanks guys!

I'd be checking the variable pulley to make sure it moves freely, Mine did that when I first got it.

what is the variable pulley exactly? are you refering to the drive pulley on top of the transaxle? if so its what i would consider stiff, it takes me pushin pretty hard with one finger to get it to move any.....how could i fix that?

jaymz_eric wrote:

what is the variable pulley exactly? are you refering to the drive pulley on top of the transaxle? if so its what i would consider stiff, it takes me pushin pretty hard with one finger to get it to move any.....how could i fix that?

The vari-drive pulley is the double pulley where the two belts loop around, ususally in the tractors midsection. It runs needle bearings and if you dont lube it right, itll seize.

I dont have that all.....mine runs from the motor pulley straight thru to the tranaxle, clutch and tensioner.....

Might be something wrong in the transaxle. Has it ever been apart?

Heres a variable pulley :


There has to be some sort of 'transmission' - unless the trans is a hydro - FNR transaxles have no actual stepped gearing - just forward and reverse - to get any sort of motion, youd need to contantly have your foot on the clutch like a hydro to moderate your speed.

Any way to get pics of this setup on your tractor?

mines the hydro from what I'm told......and yes i can get some pics on here hopefully tonight, im at work right now

if it has a shifter on the side with a rabbit and/or turtle diagram thingy, or foot pedals that you use to control speed then its a hydro