Help With The Oiler ??????

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snowhite

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:confused: Back again guy's.Here's a question for you gear heads.The oil adjustment on Yamaha sleds(600 venture)calls for 22-24mm in between the sleeve to the adjustable part.Now if you guy's can answer this great,the question bieng is,when you decrease the space(cable length)does this increase the stroke on the pump thus increasing the amount of oil bieng pumped,also if you increased the space to (24mm)does this decrease the stroke thus decreasing the oil output!The reason I need to know this is because there is no markings on the pump to line up to even if you could because you can't see squat down there as anyone knows.And to keep track of oil consumption after driving forget it that doesn't work it's not like driving on a freeway with a car or truck,to many variences.I've noticed that my cable setting is at 22mm,the spark plugs have a very oily black film around the threaded part before the insulator,but the plugs themselves are a nice tan-brown colour,also while the sled is warming up it smokes like crazy, even when I take off there's a huge cloud of smoke (to much oil)plus I can smell it on the trail.Anybody know or played with this let me know!KAPUSTA>>>>>>
 

:wel: OH tripplec;at least you know names.Now how about that sled,I need to know if you have or had a problem with her smoking when you start it and being generally stinky. I know guys have said try Yama- oil, I use shell advance as the fellow before me had.Also on the adjustment of the cable no book tells you what the difference is in when you lengthen or shorten the cable.I've been trying to work on the part throttle because I get lots of smoke and burbling on the trail.
 
You adjust at the cable gap, not at the pump on the newer sleds.
Smaller gap pulls the cable more = more oil (richer mix)
Bigger gap pulls the cable less = less oil (leaner mix)
 
Larger gap= LESS oil

smaller gap= MORE oil

You want to shoot for a 45-50:1 you need to use 31-32oz's to 12gal's(what your sled holds) so around a qt. per tank of gas..
 
hey, my 97 venture 600 twin does the same as yours Kapusta.

it uses a lot of oil, maybe a quart per 100 miles, I dunno what that equates to for oil mixture, but it is too much. We use arctic blue oil, which is the same as yamalube, and sometimes the plugsa re exactly as you describe, and other times the electrode is black as well, but apparently the spark is fine since it rarely totally fouls a plug.

I adjusted the gap on mine to a tad over 24mm and it helped, but still too much oil.

It still stinks at startup and idle, but it has yet to foul a plug since I adjusted it earlier this season. I guess I put on 400 miles or so on it since, and it seems to use a little less oil.

Yamaha had problems on 97 600's oil pumps, and may be covering the oil pump on my 12 year old sled. I hope so, that would be really cool.

have yami run a VIN check, you might see whther it has had a new pump put on it or not.
 
Yeah these sleds like oil which is not really a bad thing in that, as the dealer said if its running ok and not fouling its best to leave it alone. Better to use a bit more oil than blow the engine to save a few ounces. Some of the Ventures had bad or worn pumps. I have used the Shell Advanced as well as CTC stuff which smokes more. You could try synthetic (heard they run real clean but 2x $$$)

The dealer said the pump has a mark on it and the arm and to adjust it at full trottle to line them up. I had a look last time but could not see what he was referring to and left it and went sledding. Used oil and lots of gas and then the low oil light came on. Gas station was sold out oil so I road home and got some from a neighborough and tooled around a while longer. Last run of the season. Joy...riding this sled. Just need to get better skis and carbides for next year. Watching out for a sale or good used deal.

Perogies any one? Kubasa maybe... ha ha
 
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:beer: GOD DAY guys'.Thank's again you all hit the topic sqaure on the top.I got to talk to a (TECH),and yes he covered all the bases.Like you guy's mentioned larger gap in the oil cable(less oil) maxx 25mm.mine was at 23mm.!Floats were sitting at 13.5mm fuel level was probably to high, put the setting at 15mm.lower fuel level in the bowls.Also with the pilot jet,I changed mine to a #40,he recommended turn FUEL screw out 1-3/4,2 turns out.So all i can do is giver a try and you know what this will probably work!!!Most dealers won't tell you much as they want you to bring your sled in to there shop.Thank's guys'....... KAPUSTA.......
 
tripplec said:
Yeah these sleds like oil which is not really a bad thing in that, as the dealer said if its running ok and not fouling its best to leave it alone. Better to use a bit more oil than blow the engine to save a few ounces. Some of the Ventures had bad or worn pumps. I have used the Shell Advanced as well as CTC stuff which smokes more. You could try synthetic (heard they run real clean but 2x $$$)

The dealer said the pump has a mark on it and the arm and to adjust it at full trottle to line them up. I had a look last time but could not see what he was referring to and left it and went sledding. Used oil and lots of gas and then the low oil light came on. Gas station was sold out oil so I road home and got some from a neighborough and tooled around a while longer. Last run of the season. Joy...riding this sled. Just need to get better skis and carbides for next year. Watching out for a sale or good used deal.

Perogies any one? Kubasa maybe... ha ha
Click to expand...

mine has the marks on the pump, and at WOT, they line up, even with max gap, but it still drinks oil.


I had mine out last weekend, and hit 85mph, and that was it, but conditions were ideal. I have been getting 10mpg, which is pretty bad, considering it is supposed to compensate for temp and elevation with the smart carb. I have a feeling all that extra oil flying around reduces economy as well. I will test this out next year with a new oil pump, that hopefully yami covers.....if not, iw il still replace it.

also, fwiw, the GF says my new passenger handwarmers don't always work, like the turn on and off by themselves. I never tested that theory out myself, so I don't know what to say. I did ask if her hands ever got cold this winter, and she said no, so I said " I guess it's a moot point then."

;)
 
Just some info that might prove helpful to some . . .

The arm of the oil pump varies the oil flow from a predetermined low ratio to a predetermined high ratio as it moves through it's stroke. The cable adjustment simply adjusts where this curve occurs relative to throttle position. The mixture ratio at WOT as well as at Idle is the same no matter where the cable is adjusted (within reason). The adjustment simply affects the midrange throttle positions.

However when the pumps wear internally they tend to go richer throughout the variable part of the stroke ultimately going to full ratio at all times. I once investigated the internals of these oil pumps with the intention of rebuilding one, I found it much easier to find a new or slightly used oil pump instead. There are only a few internal parts available as service parts.
 
There was a Yamaha service bulletin on the 1997 sleds with high oil consumption, but horkn, I highly doubt you would get the pump replaced free now.

My 500 was not within the serial number range of sleds with bad pumps, but had high oil usage. The pump was replaced during the 3 year warranty period. Now the replacement pump has also worn, and the sled is taking an obscene amount of oil. The consumption had been getting higher for some time, but I did not do anything about it because the sled has had engine problems and I figured the extra oil would be added insurance. But I need to do something now because it has gotten ridiculous.

I have not heard of the other brands of sleds having this problem and as far as I have known them over the years, the Mikuni pumps have been very reliable and trouble free.
Anyone have any more information on why the pumps on some Yamaha's do this?
Ding said:
I once investigated the internals of these oil pumps with the intention of rebuilding one, I found it much easier to find a new or slightly used oil pump instead. There are only a few internal parts available as service parts.
Click to expand...
As far as I can see, the plunger in the pump would be the only part that would need to be replaced. Ding, where do you find parts for the pump?

If I had the equipment, I would weld the plunger nipple up and turn it down to shape. The idea would be to use a type of rod that would not wear like the original metal does.


And yes, the 2 cylinder 500 and 600's from 1994 -on, drink a lot of gas and oil, even when the oil pump is working like it should.
 
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One should try to re-adjust the pump before replacing,just this winter i
addressed my '98 xtc's oil usage issue,was ok when running yamalube at
a average of 25-30:1,but i sense switched over to Amsoil interceptor and
@ $27 a gallon i wanted to get it more efficient,playing with my pump
adjustments i was able to get it now to around 46-50:1 total usage, prefect!!!

what i found out is that now the lines on the pump boss are less
then lined up at WOT so these pumps can be tweaked, but if you back
it off and it still drinks it she's probably bad.

got the wife's 500 dlx dialed in to..
 
DAMAN

Do you see the DOT or marks on yours? For alignment. I didn't but will have another closer look this summer. On another note, it seam strange that a part which has oil in it and passes and controls the flow can actually wear out when bathed with fresh oil constantly. Hmmm Did yammy redesign this pump and are they engine specific.
 
tripplec said:
DAMAN

Do you see the DOT or marks on yours? For alignment. I didn't but will have another closer look this summer. On another note, it seam strange that a part which has oil in it and passes and controls the flow can actually wear out when bathed with fresh oil constantly. Hmmm Did yammy redesign this pump and are they engine specific.
Click to expand...
Yes mine has the marks look you'll see them, well what happens is the
pump don't wear,there's a tang in there that breaks off then the pump goes to full stroke all the time.(wasn't an issue after '97)

they are engine specific to a point,a 500cc pump puts out less oil(cc's)at idle and WOT then a 600cc pump.
 
PZ 1 said:
There was a Yamaha service bulletin on the 1997 sleds with high oil consumption, but horkn, I highly doubt you would get the pump replaced free now.

My 500 was not within the serial number range of sleds with bad pumps, but had high oil usage. The pump was replaced during the 3 year warranty period. Now the replacement pump has also worn, and the sled is taking an obscene amount of oil. The consumption had been getting higher for some time, but I did not do anything about it because the sled has had engine problems and I figured the extra oil would be added insurance. But I need to do something now because it has gotten ridiculous.

I have not heard of the other brands of sleds having this problem and as far as I have known them over the years, the Mikuni pumps have been very reliable and trouble free.
Anyone have any more information on why the pumps on some Yamaha's do this?

As far as I can see, the plunger in the pump would be the only part that would need to be replaced. Ding, where do you find parts for the pump?

If I had the equipment, I would weld the plunger nipple up and turn it down to shape. The idea would be to use a type of rod that would not wear like the original metal does.


And yes, the 2 cylinder 500 and 600's from 1994 -on, drink a lot of gas and oil, even when the oil pump is working like it should.
Click to expand...


My dealer is looking into it, but I was told that they might cover the oil pump.

We found a huge laundry list on items that were covered, and updated/ recalled on it. this sled has had 2 recalled mufflers. LOL

And I have never seen any other brands of sleds have worn out oil pumps. We have probably 20,000 miles on the indy trail (speedo cable broke years ago when it read 15k on it), and it has the original oil pump. it works fine
 
daman said:
One should try to re-adjust the pump before replacing,
Click to expand...
Yes that as been done on mine, the cable is adjusted to the end and I even bent the cable mount bracket way down to lessen the travel. It still is way rich on oil.
I would bet that yours will continue to increase usage until the pump has to be replaced also.
 
Hard to say,,oil usage has been constant since day one,no increase,i just
tuned it down because i'm am now running a more pricy oil..
 
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