Check oil bolt

Red is a Yammie rep/mechanic (0007onWR). Next time I see him I'll ask. Hell maybe I'll just call him this morning and see what his thoughts are. He's been with Yamaha for years.

^^^ Cool. Now we're getting somewhere. Eliminate the "guess work".

Direct from Red HQ...

You DO NOT have to fart around with that oil screw. It is there mainly in lieu of an oil pressure dummy light or sensor per se, because the bike doesn't come with one; he also said that the oil pump will purge any air out of the system on its own. It's there to check oil pressure only, and they use it when they've done a rebuild (or new) or merely want to check. It WILL NOT hurt the bike not using it, but feel free to use it if it'll make you feel better.

SheWolf wrote:

Direct from Red HQ...

You DO NOT have to fart around with that oil screw. It is there mainly in lieu of an oil pressure dummy light or sensor per se, because the bike doesn't come with one; he also said that the oil pump will purge any air out of the system on its own. It's there to check oil pressure only, and they use it when they've done a rebuild (or new) or merely want to check. It WILL NOT hurt the bike not using it, but feel free to use it if it'll make you feel better.

Hmmmm... Will Yamaha HQ pass this information on to the stealers who claim it takes an extra half hour to carry out the oil service due to 'bleeding' & charge accordingly, & also amend the owners manual??
Also, if there suddenly is an oil pressure loss, how are we supposed to know? Wait for the engine to seize?? This is one of the few things I think Yamaha have not thought through.

mash100 wrote:

Hmmmm... Will Yamaha HQ pass this information on to the stealers who claim it takes an extra half hour to carry out the oil service due to 'bleeding' & charge accordingly, & also amend the owners manual??
Also, if there suddenly is an oil pressure loss, how are we supposed to know? Wait for the engine to seize?? This is one of the few things I think Yamaha have not thought through.

What might you be doing to worry about a "sudden oil pressure loss"?

How often do you plan to check your pressure using this screw?

Just ride the bike and stop worrying. Guys are stunting this bike. People are racing it on asphault and in dirt. Some are riding it across America and back. Some are putting turbo kits on them. Some are putting big-bore kits on them.

It's a bullet proof engine my friend.

Use the "pressure check" bolt if you want.

It's up to you.


The point is: YOU DON'T NEED TO.

SheWolf wrote:

Direct from Red HQ...

You DO NOT have to fart around with that oil screw. It is there mainly in lieu of an oil pressure dummy light or sensor per se, because the bike doesn't come with one; he also said that the oil pump will purge any air out of the system on its own. It's there to check oil pressure only, and they use it when they've done a rebuild (or new) or merely want to check. It WILL NOT hurt the bike not using it, but feel free to use it if it'll make you feel better.

I just did my first oil change on my bike last week, and this stupid bolt had me wondering WTF? I guess I misread the instructions, and I took the bolt right out, and got a huge amount of oil out of it. So, if I did want to check it, just loosen it and the oil comes out the threads just a little bit? Or, you're saying a Yamaha tech is saying that they don't even do it at the shop? That would be great, because this bolt thing is the dumbest thing I've ever heard.

obviously you are checking for oil flow--like on most Yamaha dual sports. I have not done my WRR yet--nor have I looked at the manual. However, if it is like all the other Yammy's I've had the oil filter is symetrical--that is it can be installed either way. Only problem is it will only flow oil installed the correct way. A quick check on the bleed screw will confirm if you have oil flow--not a bad check in MHO--to each his own. On my other Yammy with a bleed screw I just backed it out a very small amount and confirmed oil flow then immediately retorqued it.

Oil filter can only be installed one way with this bike. Most techs don't bother with that bolt.

Akasy wrote:

obviously you are checking for oil flow--like on most Yamaha dual sports. I have not done my WRR yet--nor have I looked at the manual. However, if it is like all the other Yammy's I've had the oil filter is symetrical--that is it can be installed either way. Only problem is it will only flow oil installed the correct way. A quick check on the bleed screw will confirm if you have oil flow--not a bad check in MHO--to each his own. On my other Yammy with a bleed screw I just backed it out a very small amount and confirmed oil flow then immediately retorqued it.

My 06 WR250F didn't have a check bolt.

https://www.youtube.com/watch?v=Xqj1W38qZfg

6 min point

R_Lefebvre wrote:

Akasy wrote:

obviously you are checking for oil flow--like on most Yamaha dual sports. I have not done my WRR yet--nor have I looked at the manual. However, if it is like all the other Yammy's I've had the oil filter is symetrical--that is it can be installed either way. Only problem is it will only flow oil installed the correct way. A quick check on the bleed screw will confirm if you have oil flow--not a bad check in MHO--to each his own. On my other Yammy with a bleed screw I just backed it out a very small amount and confirmed oil flow then immediately retorqued it.

My 06 WR250F didn't have a check bolt.

SheWolf wrote:

You DO NOT have to fart around with that oil screw. It is there mainly in lieu of an oil pressure dummy light or sensor per se, because the bike doesn't come with one; he also said that the oil pump will purge any air out of the system on its own. It's there to check oil pressure only, and they use it when they've done a rebuild (or new) or merely want to check. It WILL NOT hurt the bike not using it, but feel free to use it if it'll make you feel better.

Quote :

Most techs don't bother with that bolt.

Bottom line....for the umpteenth time.....you don't need to dick around with that stupid mess making screw.

But if you want to have at it.

Haha ! My manual says to remove the bolt and start the engine ................ SQUIRT! Oil everywhere.
Like most people have stated, it's not a big deal to skip this step but do it if you want to.
Once was enough for me !

Anyone seen any problems yet arising from not checking the bolt for oil pressure? A lot of bikes should have had numerous oil changes performed by this time.

Nothing with mine and don't expect it to.

if you don't check it your motor will send you spam mail.
I have a good spam filter so I have ignored it for 11,000+ miles.

f3joel wrote:

if you don't check it your motor will send you spam mail.
I have a good spam filter so I have ignored it for 11,000+ miles.

Is that a dealer only item?

something i picked up drinking while drinking somewhere.

On old thread I know but I believe I have something to add. Instead of using the check oil bolt to check for oil pressure just keep the bike level and start it up. The oil in the site glass should immediately start to go down as the oil starts to circulate. If it does not this is equivalent to no oil coming from the check oil passage.

I dropped my oil check bolt down under the starter and it isn't coming out. Anybody know what length bolt this is? I know it is 8mm threads but how long? I have a bolt about 10mm long but I'm worried it will be too long and contact something or block off the flow.

??? The parts fiche doesn't have the size listed.

Has anybody tried mounting an aftermarket oil pressure gauge or switch in the check hole? How well did that work?

I am a new owner and my head just exploded. In 50 years of driving and building engines I've never seen this bleeder thing. I put a piece of black tape over the bolt so I don't have to look at it. same thing with my "check engine light"...I also reset it with a piece of tape

Thank you for the info SheWolf... I will continue as I have for the past 40 years with M/C's: Warm the engine to operating temperature, drain the oil, change filter, refill oil, start and let it idle for 30 seconds... What could be easier... I change the oil and filter often...
By the Way, I will pick up my BRAND NEW 2015 WR250R TOMORROW...!!! At Crossbay Honda-Suzuki, in Howard Beach, NY 11414. Pretty good deal - $6200 out the door, not including sales tax... We will do a little winter riding in Maine.  There are hundreds of miles of trails out our front door...

RoundPonda wrote:

Thank you for the info SheWolf... I will continue as I have for the past 40 years with M/C's: Warm the engine to operating temperature, drain the oil, change filter, refill oil, start and let it idle for 30 seconds... What could be easier... I change the oil and filter often...
By the Way, I will pick up my BRAND NEW 2015 WR250R TOMORROW...!!! At Crossbay Honda-Suzuki, in Howard Beach, NY 11414. Pretty good deal - $6200 out the door, not including sales tax... We will do a little winter riding in Maine.  There are hundreds of miles of trails out our front door...

FWIW: SheWolf's post was over 5 years old. She hasn't logged into this forum for 2 years.

Enjoy your new bike. That sounds like a great price!

FWIW: SheWolf's post was over 5 years old.  She hasn't logged into this forum for 2 years.

Enjoy your new bike.  That sounds like a great price![/quote]



HEY:  Thanks for the reply... Now I see her post date... I am PSYCHED OUT about picking upmy new WRR in the morning...!!!