[MattBennett23]

Exactly....

[MattBennett23]

So I still have not been able to located the funnel. I am looking at a different product though. This one is a little more expensive but seems pretty cool and a good way to avoid the mess.

For the record, yes I am aware I could just make a mess and clean it up for free, but I am not above spending a little money to make life easier on me...

It is called the Liquivac. It is basically a device that allows you to insert a tube into the place where you would add transmission oil (not worth it probably for engine oil as that drains easily and cleanly). You pump up the device creating a vacuum, then open the valve and it sucks the oil out into a storage tank. It seems like a pretty great idea. I dont know if it would suck out all of the oil, but I would imagine I could put down a shop rag and open the transmission drain bolt and get the small amount left after using this without much mess.

It cost $35, but it would also come in handy for lawn mowers, snowblowers, etc...

Anyone have one of these?

Thoughts on using this??


http://www.northerntool.com/shop/tools/ ... vactuation

[MattBennett23]

Video of the Liquivac in action:

https://www.youtube.com/watch?v=EdEdIIIuSJA

[MattBennett23]

Also, out of curiosity, how much oil do you guys use, engine and transmission?

Manual calls for 660ml (690ml with filter change) engine oil, and 670ml of transmission oil.

I have heard many different answers on what is best. Most people think this is a little low. I have heard many people say 750ml for both. Some have said as high as 850ml. Just curious what you guys do.

I also have the Rekluse Clutch cover which adds 10ml's of oil to the transmission oil.

So, according to the manual I should be .66L for oil change, .69L for oil change w/filter, and .68L for transmission oil. Do that? .75L for both? Whats the consensus?

[JimDirt]

Looks easy enough , although i don' think putting a tube in the "fill hole" of a Honda will get ALL the oil out , as the pump pickup is located in a different chamber area , so you would still have to remove the drain bolt to get ALL the oil out

With that said , i use the recommended amount in the engine side and 1 full Qt in the tranny side , though on the "new" engine design (2017) Honda went back to 1 oil fill/drain for both engine and tranny

I do not approve of this, because you are now contaminating your engine components with clutch shrapnel , which to me was a huge advantage over all the other manufacturers *except KTM who also started doing using separate oil compartments as well*....

But back to the vacuum ... like i mentioned , if you look at a Honda oil flow image , you can't get that tube down to where the pickup is , so it will never clear the engine of all its oil ...

[MattBennett23]

Hmmm.... Probably true. I wonder how much it would leave in the system. If I could drain the bulk of it and only leave a little in there to drain the standard way, it would probably be better than nothing I would think....

As for the 1 qt, I have heard that for 450X, but I have heard that is too much for the 250X, which is what I have. 750 ml in each is tempting just because its easy to remember and the same for both. Will have to give this all some thought, lol...

[JimDirt]

I do the 1 quart in the tranny in my 450X AND 450R ,with no issues , but i do use the recommended amount in the engine side on both , if you add a Qt to the tranny (on your 250) , if its too much it will puke out the tranny overflow tube just under the carb , if it doesn't start puking it out , it should be fine , i believe all the separate tranny oiling on both 250's and 450's would have the same evacuation issue that causes seizing/gear breaking of the tranny because of the small area surrounding the gears , and the spinning gears evacuating the oil away , it may be the reason they went back to single oil for the entire engine/tranny in the 2017 450 , i believe the same will happen next year to the 250

Though this was only a issue on long runs in 4th or 5th gear from what i understand , like road riding or long hard desert flat out riding , causing the failures , either way , i will continue to run a full qt in both mine , and have since i got them...

As far as draining the oil , if you still have to pull the drain plug , then just might as well just drain it all at once that way , that pump is designed more for lawn mower type flat bottom engines where there are no layered passages like there are in our dirtbike engines

[MattBennett23]

Ya just trying to come up with a way to drain it without making a mess on, or having to remove, my skidplate.....

Dont know why it can't just drain down like the oil plug. Nice and neat, lol... They had to figure people were gonna put metal skid plates on an offroad model...

The Billy Who funnel was really the answer, I am just bummed its not around anymore... I dont like getting creative, I am much better at paying others for their creativity!

[JimDirt]

You can lay the bike on its clutch side , and pull the drain bolt , then twist in a rubber or clear vinyl tube (clear so you can see the oil flowing) about the same size as the bolt , and then then tip the bike back to the kickstand ... i have done that , its a little slower , but you will get all the oil without a big mess , you could even get one of those cheap lawn mower on/off gas valves (or just a hardware store valve) so you can stop the flow till you get your bucket/can ready to catch the oil

You can do the engine and tranny oil that way

You could make something up like that fairly inexpensively , when i used to Drag Race boats , i put a hydraulic fitting on the 14qt oil pan , so all i had to do was run a hose thru the boat drain plug hole , and attach it to the connector , and had a drain bucket down below the cavitation plate at the back of the boat , as long as the nose of the trailer was up , the oil would drain right out into the pan , unplug the connector , and maybe get a drop or 2 to clean up , and your done ....

[Back2-2]

Matt, I have the vacuum system you asked about. It is well constructed and works excellent for pulling oil or liquids out of whatever you want. I have not used it on motorcycles for the reasons Jim states. But I have used it for differentials and manual transmissions. It does a really nice job and makes messy jobs less messy which is always nice.

Hope that helps a little.

[MattBennett23]

I appreciate the feedback! Ya, I'm not sure it will work for what I want it to do, but I think I may pick one up anyways. I see a lot of different uses for it, where it could come in handy.

Thanks!

[MattBennett23]

So here is the latest. I found a Yamaha one on E-bay for $16 shipped. It fits the YZ/WR 250F, 426, 450 etc. It is the same basic design but slightly different. It is designed with a frame harness to drain the frame oil, but it also works to drain the motor oil from a drain bolt in the same position as the transmission drain on a Honda CRF.

Not sure if it will fit perfectly as it comes, but I dont think it will take much to make it work for the Honda.

This is a website showing it and how to use it on a Yamaha. At the bottom there is pictures of it set up to drain the motor oil from the same spot I want to use it on the Honda.

We will see....

http://www.rcramer.com/bikes/wr250f/funnel.shtml

[JimDirt]

It might be something you can work with , and slightly modify to make work , the only downside i see is it does not look to go back far enough to reach the tranny drain hole , but it looks like it should be fine for the engine drain , i am surprised that its still available , it must be old stock , since they are not made any longer ....like i mentioned , if worse comes to worse the lay-over /tube idea does work fairly well as far as non messy goes , its just a bit slow...


On a side note , you could attach a tube that fits the drain hole like mentioned above , TO the Vacuum Pump hose and try that , that way your in the lowest drain spot but have the pump assisting with evacuation of the oil , so you would undertake it the same way by leaning the bike on the clutch side and removing the bolt/drain screw , and just inserting the correct size tube into the hole , and adapting it to fit the pump tube , raise the bike up and let it do its thing.....

[MattBennett23]

Ya we will see. I dont know it itll work or not. If its not long enough I might be able to add something to the end to get back to the bolt. Will have to take a look. I cant imagine the yamaha bolt is that much further back than the honda in the same spot... Will have to see when it gets here...

[mxsnow]

I just found a manfunnel new in package for a CRF on ebay,naturally I snapped it up!