SE starts and idles with no problems, but when I put it in 1st gear or reverse, press the gas and release the clutch it looses rpms. I first noticed the problem when the rpms would max to 5k to it reduced to 3k and now it idles. I'm thinking the fule filter. What else could cause this problem. Thanks

 

Can you be more specific. Does the motor lose rpm's because the clutch is engaging or just because the clutch is pressed in. What is your engine idleing at?