Yamahammer485
Member
Hey everyone
I have had this problem for some time now, but it wasnt always like this.
Here are some facts about my sled, 16700kms on engine, never rebuilt, perfect compression, running Amsoil Interceptor, Oil cable length is exactly 3/4" which is exactly what it says in my manual, I check oil cable length regularily and to make sure its just not moving on me, it is seated properly.
Now it smokes so bad, especially when warm that if I stop for 10 seconds, there is smoke all aorund the sled and a great big black ring in the snow. Also, 90 liters of gas = 3 litres of oil consumption, and I know very well that this isnt that way it is soposed to be. Also, it only seems to be smoking bad at idle or low RPM's, riding it produces no visible smoke, and when I give it gas, there is no extra smoke or any for that matter, unlike some skidoos I know..
But on the otherhand of all this, I am not fouling plugs at all, the engine always feels perky and is easy to start in the morinings, it never loads up, and there is no oil dripping out the exhaust anywhere like the manifold gaskets, exit, etc...
I have heard that maybe the pump might be shot, and could be causing this. Also, my personal hypothesis is that maybe an excess amount of oil is being burned through the rings not sealing properly, BUT, my compression is fine and this doesnt explain the excess oil consumption.
So does anyone have any ideas here?. I hate it being all smoky all the time, and leaving big black marks, and also paying for all this Extra oil.
Thanks in advance!
I have had this problem for some time now, but it wasnt always like this.
Here are some facts about my sled, 16700kms on engine, never rebuilt, perfect compression, running Amsoil Interceptor, Oil cable length is exactly 3/4" which is exactly what it says in my manual, I check oil cable length regularily and to make sure its just not moving on me, it is seated properly.
Now it smokes so bad, especially when warm that if I stop for 10 seconds, there is smoke all aorund the sled and a great big black ring in the snow. Also, 90 liters of gas = 3 litres of oil consumption, and I know very well that this isnt that way it is soposed to be. Also, it only seems to be smoking bad at idle or low RPM's, riding it produces no visible smoke, and when I give it gas, there is no extra smoke or any for that matter, unlike some skidoos I know..
But on the otherhand of all this, I am not fouling plugs at all, the engine always feels perky and is easy to start in the morinings, it never loads up, and there is no oil dripping out the exhaust anywhere like the manifold gaskets, exit, etc...
I have heard that maybe the pump might be shot, and could be causing this. Also, my personal hypothesis is that maybe an excess amount of oil is being burned through the rings not sealing properly, BUT, my compression is fine and this doesnt explain the excess oil consumption.
So does anyone have any ideas here?. I hate it being all smoky all the time, and leaving big black marks, and also paying for all this Extra oil.
Thanks in advance!
Old Thumper
New member
Yamahammer485 said:
Piston rings will have nothing to do with oil consumption on a 2 stroke. Oil consumption will be dictated by the oil pump. Whatever the pump puts in the engine will be consumed. I read recently that when a pump goes bad it will flow too much oil as a safety factor. So since your cable adjustment is correct, you probably need a new pump.
daman
New member
Spec. for your sled is 23mm,,,thats the lean side you could go leaner
like 25 or 26 yammie always over kills the oil specs on that type oil
pump. I have my PZ at 25 and it sips oil.
Lean it down more,, But yup your pump could be shot!!
like 25 or 26 yammie always over kills the oil specs on that type oil
pump. I have my PZ at 25 and it sips oil.
Lean it down more,, But yup your pump could be shot!!
Sounds more like your pump, but have you been burning alot of gas, my choke would stick on me sometimes..The sled would smoke lots at first then it seemed to be ok, my gas and oil would get eaten up quick.. Just a thought Good Luck>..
Phazer
New member
Bad thing is, almost nothing can be done very easily with the pump still mounted. Unfortunately, you have to pull the primary and then the pump drive housing. Use a pair of "pinch-off" pliers to clamp the oil lines. The disc that the cable hooks to could be stuck down (highly unlikely since there is a spring under it), allowing full stoke all the time.
Yamahammer485
Member
Thankls guys for the responses.
Im going to talk with my dealer on tuesday about this and see whats going on and if they have seen this too. But so far, im leaning towards the pump being shot, there is alot of kms on this motor...
Maybe in the mean time I might lean out my cable to 25mm. Screw the inches stuff, never liked them anyways...
Im also very impressed that yammy engineered it in such a way that if it fails, it pumps max oil so that the engine will not be toast, how awsome is that! But it is funny that im not fouling plugs and not seeing any lack in performance at all
Once again, thanks everyone!
Im going to talk with my dealer on tuesday about this and see whats going on and if they have seen this too. But so far, im leaning towards the pump being shot, there is alot of kms on this motor...
Maybe in the mean time I might lean out my cable to 25mm. Screw the inches stuff, never liked them anyways...
Im also very impressed that yammy engineered it in such a way that if it fails, it pumps max oil so that the engine will not be toast, how awsome is that! But it is funny that im not fouling plugs and not seeing any lack in performance at all
Once again, thanks everyone!
Yamahammer485
Member
Just an update
I adjusted the oil cable quite a bit, not sure on actual measurements but it is still under 25mm, but around 22mm,23mm, and there was a large difference in oil consumption and smoke. Im going to do the full 25mm or 26mm in the next few days before I go on my ride.
All this means is that the pump isnt shot, it just was running rich at the factory settings.
I adjusted the oil cable quite a bit, not sure on actual measurements but it is still under 25mm, but around 22mm,23mm, and there was a large difference in oil consumption and smoke. Im going to do the full 25mm or 26mm in the next few days before I go on my ride.
All this means is that the pump isnt shot, it just was running rich at the factory settings.
daman
New member
Yamahammer485 said:
Try the full 25mm Yamahammer like i said,, i got my '94 PZ there and it sips oil.
viperking
Active member
my oil cable that goes from the throttle to the motor kinda of popped out of its sleeve kinda thing and my viper burnt a tank of oil before it burnt a tank of gas and i put that back in the sleeve thing and it burned normal amount of oil
aSRX600guy
New member
as to your question about plenty of power, more oil = more power till you start to fowl plugs. more oile = better ring sealing and more lubrication.
woolyviper
New member
viperking said:
mine did the same thing - 2 gallons of oil in about 300 miles - it must have been just pouring it in the motor - it's good now, can barely get a quart in it after a good long weekend.
Yamahammer485
Member
Its quite startling, the reccomended setting is 3/4", and setting it to 25mm is a HUGE difference in cable length.
I will set it to 25mm, I checked the plugs from what I have it set to now (22-23mm) to see what color they were and they seem perfect.
I will set it to 25mm, I checked the plugs from what I have it set to now (22-23mm) to see what color they were and they seem perfect.
daman
New member
Just keep an eye on your oil consumption for a little wile... 
ski
New member
At 50:1 you should burn a quart of oil per tank of fuel. Just a quick tip so you can monitior usage on the fly.
daman
New member
ski said:
1 gal = 128 oz. 1 qt = 32 oz.
10 gal = 1280 oz
If you want 50:1, then 1280/50 = 26. You should burn 26 oz of oil per 1280 oz (10 gal) of gas.
26/32 = .8 -- 26 oz = 80% of a quart.
If you burn exactly 1 quart of oil per tank of gas, you're running 40:1 fuelil ratio. (1280/32 = 40) 40:1 is "richer" than 50:1.
If your yammie is like most, it will burn nearly 2 qts per tank of gas at the factory setting, which is closer to 20:1, which is just wasting oil.
1 qt = .95 liter.
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