Wow, you guys can make a simple job pretty complicated. Given the amount of residual oil left in the engine, I don't see a dangerous "tipping" maneuver to get 1/3 of the residual out worth the risk.
My regimen: centerstand, drain, pop filter off with $4 pep-boys #5 cup wrench (tin foil on fairing panel), replace drain, screw on new Yamaha filter (oil o-ring slightly and get as tight as possible by hand), refill with 4 qts. (I don't even bother looking at the slight glass as an hour of riding later, it will always be right in the middle of the sight glass range). Whole process takes 15 minutes if I'm drinking a beer and goofing off. I've never had a motorcycle that is this easy to change oil.
- Mark
Thanks for the 4 quart(rather than 4.23 quart idea), markjenn.
This "pawtracks" description is exactly what I experience every
change:
https://www.fjrforum.com/forum//index.php?s...st&p=116949
I was thinking about trying 4 quarts, and your narrative has
validated the process. So much for following the instructions.
In response to the questions I, and others, have/had on the
oil refill problem where the fill level seems to grow over time,
I've contacted Yamaha for clarification.
The previous discussions here would be identified by, but not
limited to, these references:
https://www.fjrforum.com/forum//index.php?s...mp;#entry116949
https://www.fjrforum.com/forum//index.php?s...mp;#entry116956
https://www.fjrforum.com/forum//index.php?s...mp;#entry116993
https://www.fjrforum.com/forum//index.php?s...mp;#entry117490
https://www.fjrforum.com/forum//index.php?s...mp;#entry122105
https://www.fjrforum.com/forum//index.php?s...mp;#entry723283
And this was my question to Yamaha:
Like many FJR owners, I change my own oil and filter(s). The issue seems to be oil level expansion.
Upon refill, I carefully measure a 4 quart, 8 ounce fill volume. This brings the sight glass about halfway between the minimum and maximum markings, after run-in.
However, after 5-7 hundred miles, over several weeks, I'll notice the sight glass oil level beginning to creep up to, and beyond the maximum marking.
I'm pretty sure your FJR's do not manufacture oil, and I know my oil refill is accurate.
So, can you tell me how/why this oil level creep occurs, and if we should just ignore it. Personally, when this happens, I vacate enough oil to return the measurement to the mid-point measurement seen immediately after the last change.
I, like others, really like the bike, and this is just a minor annoyance.
Thank you very much for your help.
And this is the response from Yamaha:
Thank you for your question. I have been told by our Technical Advisor that the oil may rise through the sight glass for several reasons. One reason may be condensation accumulating in the crankcase. This is most common when a vehicle is run for shorter periods of time and the condensation is not released through the crankcase breather tube. Another reason may be that fuel is getting past the rings and adding to the crankcase oil volume. Another reason that may contribute to a higher oil level may be that once oil is poured in and circulated it becomes aerated, and raises the oil level slightly. Any one, or a combination of any of these factors may be adding to your rising oil level. Thank you.
So, generally speaking, those seem to be the predominant causes of
this oil fill creep. Personally, my bike would probably be a candidate
for the "shorter periods" scenario. I'm just not sure I understand where
the sump drain is on an FJR. I've seen a tube down by the drain plug,
but assumed that was battery overflow. Of course now thinking about
it, the battery is in the cowling, so maybe that tube is for sump drain.
I certainly hope no one has fuel seepage into their oil. I never inspect
my oil drain for the smell of fuel, and I'm not sure what to do about it
if it were found.
The third cause, "Aeration of the oil", seems a possibility. But, to me,
only seems capable of making a very small difference.
As others mentioned, I guess I am just assigning to much importance
to this issue. All my other previous bikes had dipsticks for oil measure-
ment. Having this sight glass seems a never ending invitation to repeat-
edly check the oil level, which I never repeated frequently using the
dipsticks.
But, as I told the Yamaha representative, the suggestion of a 4 quart fill
("markjenn"-117490), started my sight glass empty. I found this worri-
some, even though I knew mt oil level was merely 8 ounces short.
The whole topic has now left me weary.