Bob Miller
TY 4 Stroke Master
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- Present Sled: 2011 Yamaha Apex 128
The service manual states that after an oil change , to remove the oil gallery bolt to check for all pressure. Does anybody do this? Is this really necessary? Where is that bolt located? On the exhaust side of the head on the clutch side? :roll:
welterracer
TY 4 Stroke God
I highly doubt any one does this and the dealers dont eather!!
WHY and to time consuming!!
WHY and to time consuming!!
tembro
Newbie
I have seen problems on automotive applications, usually when installing a rebuilt engine. We always prime the oil system by hand, sometimes having to pack grease in the oil pump to get it to pick up. The system is very dry at this point, of course.
Parallel this to draining your oil with the engine hot. Hot oil would drain more completely out of everywhere. Then, when refilled, the oil pump could have a problem picking up the oil.
So, I believe Yamaha is just giving us a fail-safe method of making damn sure there is oil pressure before heading out & ruining the engine.
Just my 2 cents, from an auto repair shop point of view, on this question.
Parallel this to draining your oil with the engine hot. Hot oil would drain more completely out of everywhere. Then, when refilled, the oil pump could have a problem picking up the oil.
So, I believe Yamaha is just giving us a fail-safe method of making damn sure there is oil pressure before heading out & ruining the engine.
Just my 2 cents, from an auto repair shop point of view, on this question.
Bob Miller
TY 4 Stroke Master
- Joined
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- Snowmobile
- Present Sled: 2011 Yamaha Apex 128
Good feedback tembro! 
Do you know where that oil gallery bolt is located? :roll:
Do you know where that oil gallery bolt is located? :roll:tembro
Newbie
If you have the full manual, the picture & description is on page 2-24. I tried to attach it out of a pdf file, but I'm not smart enough to do that...yet!
Basically, it's the oil gallery bolt just to the left of the left-most (is that a word?) exhaust flange. You crack it loose, fire up the engine to bleed out the air & making sure oil seeps out, then tighten it...you're done.
Basically, it's the oil gallery bolt just to the left of the left-most (is that a word?) exhaust flange. You crack it loose, fire up the engine to bleed out the air & making sure oil seeps out, then tighten it...you're done.
neonphil
Expert
tembro said:
tembro
Newbie
RXWarrior<thanks for the supporting attachment!!
Bob Miller
TY 4 Stroke Master
- Joined
- Apr 19, 2003
- Messages
- 1,322
- Reaction score
- 8
- Points
- 1,093
- Location
- New Milford CT
- Country
- USA
- Snowmobile
- Present Sled: 2011 Yamaha Apex 128
Nice showing RX Warrior 8)
black john
TY 4 Stroke Guru
note
bikes dont have oil psi gauges. allso you have realize that that oil gallery is under the ex heat shelding and would hard to get to let alone run a wire or line from or to
bikes dont have oil psi gauges. allso you have realize that that oil gallery is under the ex heat shelding and would hard to get to let alone run a wire or line from or to
I don't do the galley bolt, but when I add the 3qts, run it and add .2-.25 more oil to get it back to the same level, I figure I am pretty safe on the oil circulation department :wink:
black john
TY 4 Stroke Guru
oil psi
i will second that. no bone ratlling oil psi is got to be good. drive it like you stole it :twisted:
i will second that. no bone ratlling oil psi is got to be good. drive it like you stole it :twisted:
