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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 10 Jun 2009
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Question 1997 XTZ660 Tenere

Hi all.

I have just bought a 1997 XTZ660 Tenere, & being the 1st bike with dry sump I'm confused.
I looked at the dip stick (the bike was level) after running the engine & there was no oil showing. Not being sure I drained the oil (crankcase & frame) & got about 2.5 - 3ltrs out. I then put in 2.7 ltrs (as per the book) ran the engine for a couple of minutes. I also opened the air drain from the top of the oil filter till oil came out.
The dip stick still is not showing any oil.
Is this right? How does the dry sump system work?
Does the oil go from the crankcase to the sump etc?
How do I check the oil level?

Thank you in advance.

brig
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Old 10 Jun 2009
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On XT's you should drive the bike 15mins or so, then park, turn off the engine, position the bike vertically and make a reading on a dip stick. Tip stick should not be screwed in while measuring oil level.

I have no experience with 660 though, only with 600's.
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Old 10 Jun 2009
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dip stick

Quote:
Originally Posted by stari vujadin View Post
dip stick should not be screwed in while measuring oil level.
is that correct?
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Old 10 Jun 2009
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Quote:
Originally Posted by Lamin Sambou View Post
is that correct?
It is the correct method for the 600, yes.
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Old 10 Jun 2009
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Hehe, sbh1953, I've just clocked your username. Do I take it that you were born in a very good year?
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Old 10 Jun 2009
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It is the correct method for the 600, yes.
Yes BlackDogZulu, 53 was a good year.
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Old 11 Jun 2009
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Yes BlackDogZulu, 53 was a good year.
Hehe, too fast to live, too young to die, eh?
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Old 11 Jun 2009
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How does the dry sump system work?
Does the oil go from the crankcase to the sump etc?
How do I check the oil level?

to answer your questions some details need to be clarified the xt is not actually a dry sump its a shallow pan sump system, the oil is picked up the same as a conventional sump through a scavenger pick up. the oil is then sent through the oil ways in the motor and out through the bearings etc as a normal engine the oil that does not get out through the oil ways and bearings is pumped into the oil tank and is then fed to the sump to start the cycle all over again.

run the engine untill the oil reaches about 60c turn off the engine, position the bike vertically and make a reading on a dip stick. dip stick should not be screwed in when measuring the oil level.
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Old 12 Jun 2009
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Quote:
Originally Posted by wolfzero View Post
How does the dry sump system work?
Does the oil go from the crankcase to the sump etc?
How do I check the oil level?

to answer your questions some details need to be clarified the xt is not actually a dry sump its a shallow pan sump system, the oil is picked up the same as a conventional sump through a scavenger pick up. the oil is then sent through the oil ways in the motor and out through the bearings etc as a normal engine the oil that does not get out through the oil ways and bearings is pumped into the oil tank and is then fed to the sump to start the cycle all over again.

run the engine untill the oil reaches about 60c turn off the engine, position the bike vertically and make a reading on a dip stick. dip stick should not be screwed in when measuring the oil level.
Thank You

Can you overfill without damage? say 3-3.5 ltrs.
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Old 12 Jun 2009
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there is slightly more tolerance with the xt setup as its mainly a gravity fed return to the sump but much more than the upper level on the dip stick should be avoided as the system can pressurize when the filler cap is fitted back in place
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Old 12 Jun 2009
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Overfilling will probably mean the excess is blown out and into the airbox, messing up your air filter and giving you something else to worry about. Drain and refill with correct amount, 10 minute job.

Wolfzero is correct on the level check method. I find it's easiest to do when filling with fuel. The bike has had a good run and got up to temp, you fill and pay for the fuel, and then check the oil level. This gives it the few minutes to settle that will give you a consistent reading. It's the only way I ever get a consistent reading on mine - any other method and the levels are all over the place.
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