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Does the cut end face up or down anyone?I just read all the posts and may have missed the answer.
 

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I put the cut end down. I did take some needle nose pliars and bent the cut end up to insure no sharp cut end would cut into the spring seating spot. Can't see where it would really make a difference which end it goes however. Maybe someone else knows, but thought it would be safest to make the bend on the end.
 

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I don't think it really matters. I put the cut end up on mine.
 

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i cut the up end so it rests against the metal cover and not the rubber diaphragm. the mod does work very well tho i say as now i can't wheelie at all on the driveway because when i mash the throttle it just spins the rear tires off in second gear.I'll have to try it in the dirt soon.I can't believe such a simple mod works so well.
 

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Ain't it amazin'??? And the best thing about it is, it doesn't cost a dime.
 

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Don't understand, I tried again and cannot see a difference. Guess I was expecting too much?
 

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it's not that you get more Hp at all but just a much more responsive throttle ya know??my rancher had great power before but it is now really responsive to hitting the throttle now after clipping the spring.how much did you cut off and is your jetting dead on? I know my jetting is right on and maybe that's what made it seem so noticable.
 

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i tried to do it but i couldn't get the front 2 screws out.... i will have to try a needle nose pliers or something to get them out
 

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QUOTE ("Truckman":1dw333yv)
it's not that you get more Hp at all but just a much more responsive throttle ya know??my rancher had great power before but it is now really responsive to hitting the throttle now after clipping the spring.how much did you cut off and is your jetting dead on? I know my jetting is right on and maybe that's what made it seem so noticable.
I cut off 13 coils which is about half of the spring. I wasn't expecting more hp. Don't know really exactly what to expect but cannot really feel a difference either way. Did not hurt anything though. When I get up to the East Texas woods, will try more but here at home riding down a canal bank, cannot tell anything. Throttle responce before seemed good but will give it another chance when I make it up to the woods.
 

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I cut my spring tonight. My photos are somewhat like AkATVHunter.

Pic 1 is the stock carb spring from a Foreman 500

Pic 2 is the stock carb spring cut on the 13 coil. Notice you must count the bunch of coils at the end of the spring. There are 3 bunched together.

Sorry photos are blurry, I was in a hurry.

I took my Foreman for a test drive and it did have better throttle responce. I will take it out for a ride this weekend for further testing.
 

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i am going to do this to then new 04 foreman i got the other day its better then the 60 bucks for the jet kit
 

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I see that everyone is trying this mod, and i think i will to. I have 2 questions for those that have done it , Do you find that the bike burns more gas than before during normal driving ( compared to before you cut the spring ) Are you burning more gas because you can't keep your thumb off the throttle ?? ( LOL)
 

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QUOTE ("ClassA64":9npe6i8o)
I see that everyone is trying this mod, and i think i will to. I have 2 questions for those that have done it , Do you find that the bike burns more gas than before during normal driving ( compared to before you cut the spring ) Are you burning more gas because you can't keep your thumb off the throttle ?? ( LOL)
I rode about 30 miles this past weekend and I can really tell a major difference. I can't really tell that much of a mileage difference though. My Foreman seems it found that little bit of "umph" it was looking for. I still can't out run my friends 05 Rubicon though. Those Ruby's are just brutes. Rubicon will most likely be my next atv.....years down the road.
 

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A buddy I ride with has an '03 Rubicon and my '06 Foreman can't stay with him,And he outweighs me by 60 LBS.!!!
 

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I did this mod the day I got new tires and the start of our riding season so I don't really know what I gained - one change at a time I guess..

Based off this

QUOTE
by cutting it makes it weeker and takes less vacume to pull the diaphram up#22,the needle is conected to the diaphram and slides in and out of the main jet,by cutting the spring the carb dumps fuel in faster,this is how you get quicker response
I think that your jetting needs to be correct for this to have good effects for a mod. I find that my RPMs don;t build as fast (could be the tires) but also could be the fact that the stock spring had a relationship to the needle and how the user worked the throttle.

Sure the mod may allow more fuel to be dumped in faster but that doesn't mean its being mixed or burned efficiently.

I should have my Quadworks powerkit in next week and I'll post results of going to the DJ spring after jetting and then to the stock cut unit. I know going to 27 inch mudbugs I will lose some snap but I do think the carb spring mod may be flooding too much fuel in which affects what happens off the bottom end.

my .2 , but I don;t know definitively how this mod works yet or if it is just a psychological effect.

fed007
 

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Everyone that I ride with has done this mod and all have noticed the differance ,I myself can hammer on the throttle and lift the front wheeles and couldnt before,so it does work ,as far as mixing the fuel if its dumping too much in it will lose power,
 
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SPRING CUTTING

I HAVE AN 05 FOREMAN 500 AND A 05 RANCHER . I TRIED IT ON BOTH. THE FOREMAN I CUT 13 SPRING OFF AND IT THREW MY HEAD BACK, AS WELL AS GRAVEL EVERYWHERE. BUT, THE RANCHER MADE VERY LITTLE DIFFERENCE, ( I CUT 11 SPRING OFF) CUT SPRING OR NOT. I DON'T KNOW IF IT IS BECAUSE THE RANCHER HAS A SMALLER DIAMETER FLOAT RETURN SPRING OR WHAT ???? BUT ON A FOREMAN IT IS A "NO BRAINER .... " DON'T BE SCARED, SLING SOME MUDD........AND RIDE HARD !!!!!!!!!
 
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