oil pump

H

harleymike

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Dec 20, 2008
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southern ontario
OK, fouling plugs, motor smokes a fair bit. I read on here that the pumps are set a little hight. There are two marks on the pump, where the cable connects.
They said on here, the mark should be 1mm past the mark on the pump at wide open throttle.
MIne was 1mm past at closed throttle and probably 6 or 7 mm past. I bent the bracket too adjust, and now it hits just barely past the mark at wide open, and a little short of the mark(3mm) at idle. Does this sound right.
Ran carb cleaner through the intake, and put new plugsin. Seems better for now.
Does any of this make sense.
thanks for the help
mike
 
you shouldn't have bent anything theres an adjusting joint in the oil cable,adjust that till the lines on the oil pump line up at wide oper throttle.

if you want it a tad leaner have it just before they line up @ wot..
 
I had too bend the cable support. The adjuster had no more adjustment in it.
Now the line is just past the the line on the pump at full throttle and the line at closed is just before the one on the pump......
Bending the bracket accomplished the same thing, it only needed a simple tweak.
I was haveing fouling plug issues.
Before I adjusted the bracket, the line went about 6mm past the mark on the pump.....So i am assuming it was pumping too much oil....
thanks for any help
mike
 
Just curious did you find the in-line adjuster, or the one at the bottom that screws on to the pump? If the cable has stretched that much you might want to replace it. Also i think you might not have changed the oil mixture by bending the bracket.
 
somthing not right if your outa adjustment,should not be,but anyway if your
just before they line up @ wot your good...
 
the inline adjuster was at the max. By bending the bracket it does the same thing. The marks changed. Now it goes past the mark on the pump by 1mm at wide open throttle.Before that it went by about 6 or 7 mm ....
I may replace the line at some point.
I want too takeit for a ride and see if it helped or not.
thanks
 
i have a 97 600 as well, it does smoke a lot when it's cold then seems to clear up a bit. Still not sure about the bend bracket, it seems like the cable will still be moving the same amount? It sounds like it still being pulled a couple of mm too much. Oh well give it a ride, a little rich won't hurt
 
Just went out and played with the bracket again, it definatley changes the position of the marks. The idle mark is off, but the wide open is now just before the mark,mayhbe 1mm...Does it matter if the idle mark is before the mark on the pump...
 
I am going to take a look at my pump tomorrow. I would just be concerned if you start bending the aliangment tabs that it could mess it up and not be able to get it back to the right spot. I still think that the arm that the cable is connectted to is still moving more than it should and pumping more oil than it needs. Even if the marks "line up" now And the only way to correct it is adjusting the cable. Hopfully someone else will put in thier 2cents and can explain it better.
 
I appreciate any input. I thoaught I read somewhere else that you could do this. The bracket isnt attached to arm that the marks are on. Just the cable is. By bending the bracket, and you dont have to bend it much, it changes the distance from the cable to the arm on the pump. This changes the length of the cable.... I dont know seems to work. The arm marks on the pump and arm are definately changed now. Of course it turned mild and rained here now, so I havent been able too try it out. I put new plugs in after I ran some carb cleaner through it... Also put a new drive belt on.....
Appreciate anyones input. Dont know why my cable wouldnt adjust anymore. But it definately was pumping too much oil. I looked at the old plugs again, they are black, and have oil on them. Some of the black is wet, and some is burnt on.....
thanks guys
mike
 
Ummm, you have a 97 600 twin?

I can bet $$ that your pump is shot. Yammi had an issue with the 97 600 oil pumps. Ours was bad and when they fail, they fail way too rich and dump oil in. I have not ridden mine since I had the pump replaced a week ago, but the service tech said it was a whole different aimal after he changed that out. I will be up north over the new years weekend, so I will report on how she runs, but I bet it is even snappier, and will get better mpg to boot. It as using a ton of oil last winter (we bought it last winter) and smoked like all hell, and fouled plugs. Not what you would expect on a smart carb temp/ elevation adjusting setup.
 
It might be a good idea to top up the oil and gas then take it out and run it. Then top it off again and measure the amount of oil and gas used. That should let you know what ratio you have. and a fyi when the pump on my 600 went it quit pumping period...
 
approximatley 6 gallons of gas, used approximatley 3/4 tank of oil.
( a little less than 2l of oil per 6 gallons. I believe)
Not sure what that woks out too...
 
harleymike said:
approximatley 6 gallons of gas, used approximatley 3/4 tank of oil.
( a little less than 2l of oil per 6 gallons. I believe)
Not sure what that woks out too...
Click to expand...
whaay to much....

this is for a 12 gal tank

1 gal = 128 oz. 1 qt = 32 oz.
12 gal = 1536 oz

If you want 50:1, then 1536/50 = 31. You should burn 31 oz of oil per 1536 oz (12 gal) of gas.

31/32 = .9 -- 31 oz = 90% of a quart.

If you burn exactly 1 quart of oil per tank of gas, you're running 48:1 fuel ratio. (1536/32 = 48 ) 48:1, almost 50:1, real close.

i wouldn't go any leaner then 50:1

your sled has a 2.5 qt oil tank
 
I'm going too top off the gas and oil and then go for a ride, then top it off and measure the amount used.
Of course it has turned mild here, and the snow is melting so I probably won't know for a while....
thanks for the help....
 
I think your at a 12:1 ratio? should be in the 40/50:1 range. I think that gas tank holds around 40 liters, you should be burning roughly a liter of oil per tank. Did you measure that before you adjusted the cable/bracket or before?
2 liters is roughly 1/2 a gallon.
 
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