I have 1998 400 explorer..can't get front chain tight...loosened pinch bolts and turned can with pickle fork center chain tightens but front one doesn't MOVE??? and it is loose as hell...what could b problem..any body???

 

If you can turn the front carrier assembly backwards but the chain won't tighten,it could just need a new chain. Front chain when adjusted right should have about 3/8" slack. Anytime you tighten the front,the center chain should loosen. Then you adjust the center carrier to tighten the center chain. If a front carrier is frozen you can use an air impact and a dull bit to free it up.

 

Is their two different adjustments for both chain??? I loosened both pinch bolts and tapped can with pickle fork it moves freely both ways but only tightens center chain...front chain is so loose almost take of sprocket....what is front carrier??

 

Does cam... Under pinch bolts tighten both chains or is their two different adjustments???

 

Here's a manual that can help you understand how to adjust the three chains!Index of /ORV Manuals/Polaris/1996-1998 - All Models

 

How many of these parts needle seat float and float arm /pin can be replaced without removing the carb if any? Also a link to purchase quality parts for a 2000 425 xplorer is appreciated, thank you. I'm suffering from dripping gas and prefer to go through the hole thing if possible.

 

Carb has to be pulled to replace a worn needle and seat or anything else. It's not that hard and you only need to get it out far enough to pull the float bowl in most cases. Here's a oem place for the float arm,float pin if needed.Dirt Cheap Yamaha, Honda, Arctic Cat & Polaris OEM Parts & Accessories – Cycle Parts Warehouse Check Ebay for carb kits as you can get a rebuild kit for the price of the oem needle and seat.The Expedition 425 takes the same needle and seat and other basic parts as the 99-2000 Sportsman 500. http://www.ebay.com/itm/CARB-REBUILD-REPAIR-KIT-POLARIS-SPORTSMAN-500-1999-2000-/290997966234?pt=Motors_ATV_Parts_Accessories&hash=item43c0d4959a&vxp=mtr

 

I have 1998 400 explorer is the vent hose from carb supposed to be hooked to transmission or should they b two separate lines carb line has a vaccum things ma jiggy in it and it runs to tranny ..u can only blow through it one waywhen iI got it it was hooked to tranny allowing gas to overflow in tranny..I turned vacuum plug around so it couldn't flow into tranny..but wondering if they both should be separate???????

 

Throw the one way check valve away as most of the time they fall off any way. Have separate lines for everything including the carb,transmission, and counter balancer cavity vent. Just run them up out of the way.

 

Awesome!!! Kinda what I was thinking!! It runs better unhooked any ways..thank u thank u...I have a 2002 700 twin and it had same check valve and that ran better without also..doesn't run at all now was having problems with over heating and then starting knocking real bad I was told crank is bad sums to loved machine only 1200 miles on it now it sits in shed not running!!!!BUMMER...