Getting ready for an oil change. I've read many posts about the best oil to use. I'm pretty sure what is currently in the ATV is NOT synthetic. I've seen many different weights suggested. I guess it depends on the use of the ATV. All mine is used for is yard work-mowing/snow plowing, etc. on my 5 acres. I was planning to use the same oil I use in my jeep 10/30.

Any comments, suggestions? Will this be OK?

 

Basically unlimited to choice of oil and weights. If you live in an extremely hot temp area,then you could use 10/30,even Polaris has an "extreme" 10w50 for hot climates or extreme use,BUT there are better choices out there if you don't. You need a thin enough weight to get to the cam and rockers arms quick. Using 0w40,5w40 or 5w50 in any good synthetic is probably the better choice in getting the oil moving quicker and still be able to protect on hot days Remember the "w" stands for winter.

 

Thanks for the response.

Maybe you can help with another question. I'll be putting the rebuilt carb back in this evening and I'm concerned about the throttle cable hookup inside the carb. My fat fingers had a heck of a time disconnecting the cable. The small brass piece that the cable attaches to is a little intimidating. Any suggestions? Are there instructions on what to do. The manual doesn't really say much.

 

Thread the cable adjuster into the carb body at about the same spot originally,then tighten the lock nut.Thread the cable on the throttle wheel,turn the wheel until the soldered cable end passes the cutout for the slotted brass holder in the wheel. Push the holder in over the bare cable with the beveled end facing the cable end. Slowly release the wheel and the cable end will lock into the brass holder.

 

This is much appreciated. I was sitting here trying to visualize what I can do to make this work. Your directions are super.

 

Carb install went well. Engine started right up and with a few minor adjustments it seems to be idling fine. Will put it all back together this evening and take it for a ride.

QUESTION - The choke appears to be working correctly but the choke rod (lever) can only be pulled out about 1/2 the distance of what it was before unhooking it from the carb. Is this something that I should be concerned about?

When I pull it out all the way the engine stalls and I had to use the choke to initially start the engine after installing the carb so it appears to be working.

 

Check that the cable isn't binding from the pod going down to the carb. The slack at the **** can be adjusted at the carb if need be. Main thing is the choke circuit closes all the way. If you're concerned enough you can pull the top cap off the carb,remove the slide and pull the choke back and forth and see if the brass plunger closes all the way in.

 

The 400 Sportsman is the same Fugi dry sump motor as the 500s just with a smaller bore or stroke or both.
Its highly recommended to stick with full synthetic and 0w or 5w at most.
Lots of oil filter to chose from though.

So if you want another option these filters will work. The longer 3.5" and the 2.5" long. Plenty of room for the longer ones.

These Oil Filters have 20 x 1.5mm threads, 14 psi by-pass valve, anti-drain back valve, 2.3" O.D. gasket 2.5" to 3.5" long.


Motorcycle Filters.
AC Delco PF2135
AMSOil SMF103
Carquest 85358
FRAM PH6017A
Honda 15410-MCJ-000
K&N KN-204, about $13. Metric nut on end for easy removal.
NAPA Gold 1358
Purolator ML16817. Imported, not made by Purolator.
STP SMO 17
WIX 51358
WIX PS1358

Recommended filters. All have superior filtering. (I,m told)
About 2.5 inches long.
Purolator Pure One PL14612, about $6.
Mobil M1-108, about $12. Made by Champion.
Bosch 3300, about $6. Made by Champion.

About 3.25 inches long.
Purolator Pure One PL14610, about $6.
Mobil 1 M1-110, about $10. Made by Champion.
Bosch 3323, about $6. Made By Champion.
WalMart SuperTech ST7317,about $2. Made by Champion.

Buy these filters Automobile Filters,about 2.5 inches long.
AC Delco PF1237
Baldwin B1400
Firestone TF2876
Hastings LF113
NAPA Gold 1365
Purolator L14612
STP S-02876
WalMart SuperTech ST6607
WIX 51365



Automobile Filters, about 3.25 inches long.
AC Delco PF-2057
Auto Pro 2356
Autopride CF240AP
Baldwin B1402
Carquest 85356
Carquest Red B4620
Casite CF240
Castrol 7317
Champion Labs Ph2867
Defense Filters Dl7317
Deutsch D-370
Federated Filters LF240F
Fram PH6607


Automobile Filters, about 3.25 inches long.
Fram Double Guard DG7317
Fram PH7317
Fram Tough Guard TG7317
Fram Xtra Guard XG7317
Group 7 V4610
Group 7 V4620
Hastings LF240
Mighty M4612
Motorcraft Long Life FL-821
Napa FIL1356
Napa Gold 1356
Parts Plus PH2867
Pennzoil PZ-109
Penske 7317
Powerflo SL14610
Powerflo SL14620
Pro Gauge PGO-4620
Pro Tec 164
Promotive PH4610
Pronto PO3593A
Purolator L14610
Service Champ OF-4622
Shell SH48
Shell SH529
Stp S-02867.
Valvoline VO50
Warner PH2867
Wix 51356
Wix PS1358 (specific for ATV's) What ever that means.


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