Simple, Safe way to change the oil

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Written by Fatbike   
Friday, 11 June 2004

Reprinted by Permission from FatBike

As many of you know, there are several different methods used to change the oil in the Road Star. The method that I prefer was actually introduced by Dave M (Thor).
It works well and doesn't involve starting the engine during the refilling process.
Place the bike on a sturdy stand before you begin.  You want the bike level and it is too easy to knock it over if it is just on the side stand.
The procedure is outlined below.

1) Remove the seat. Locate the dipstick cover.  Remove the dipstick from the tank.
2) Place drain pans under both the crankcase drain plug and the oil tank drain plug.
3) Remove both of the drain plugs using a 17mm “Monkey Wrench” on the crankcase drain plug and a 17mm socket with a 6” extension on the oil tank drain plug. Remember        that the distance between the drain plug and the crankcase housing is very tight.  Most people have the best luck with a “Craftsman” combination wrench, as the profile of        the closed end is thin enough to fit into tight spaces.  Stubby wrenches, although too short to give you any leverage are generally easier to use as the clearance between          the bike and the floor is also tight.  Your best bet is to break loose the drain plug with a standard length wrench and complete the process with the stubby wrench.
4) Remove the oil filter with a cap-style filter wrench.

Give the oil plenty of time to drain.  10 to 15 minutes should be sufficient.  Reinstall the drain plugs and the new filter. 
Hand-tighten (as tight as you can, by hand...) the filter and torque the drain plugs to ~35 ft/lbs.

Next, remove the hex-key plug, located behind the rear cylinder.  Refill the crankcase with 3.2 US qt of oil directly.  Add the remainder, approximately 2.1 US qt (*) into the oil tank (where you removed the dipstick).  Replace the hex key plug. Tighten to approximately 10 ft/lbs.

Start the bike and let it run for a few minutes, checking for leaks.  Shut the bike off and check the oil.  It should be at the top of the hash marks.

Assuming that you didn't find any leaks, You are finished!  (*) Update:  Dave has informed me that the amount above is for a totally dry bike.  Subtract 8/10ths for a standard oil change! 

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Remove the dipstick.  This is where you fill the oil tank as well...

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...The crankcase drain...

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The oil tank drain.  Found almost directly under the dipstick...

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Hand tightening the filter will usually do.  Do not over-tighten!

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Refill the crankcase through the opening found just behind the rear cylinder



Questions should be asked in our forum (Use discuss link below). The forum is very active and you stand a good chance of getting your questions answered there. If you would like to leave feedback for the author, or have additional information you think will benefit others, please use the comment section at the bottom of this page.

Discuss this article on the forums. (12 posts)


DISCLAIMER: This information and procedure is provided as a courtesy and is for informational purposes only.  Neither the publishers nor the authors accept any responsibility for the accuracy, applicability, or suitability of this procedure.  You assume all risks associated with the use of this information.  NEITHER THE PUBLISHERs NOR THE AUTHORs SHALL IN ANY EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OF ANY NATURE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE USE OR MISUSE OF THIS INFORMATION OR LACK OF INFORMATION.  Any type of modification or service work on your motorcycle should always be performed by a professional mechanic. If performed incorrectly, this procedure may endanger the safety of you and others on your motorcycle and possibly invalidate your manufacturer’s warranty.


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  Comments (10)
Oil Capacity
Written by Beachcop, on 08-18-2014 11:52
Well anything more than 4 quarts is too high for the 2012 Roadstar . . . . . .
Written by hlpip, on 11-21-2012 12:51
Thanks everyone you all have helped a bunch, oil change, things look for an to watch out for
Oil Changes
Written by wjhendricks, on 08-25-2012 12:33
5.3 Qts. is for a dry engine! The manual calls for 4.3 Qts. But on my 2002 1600 Roadstar 4.3 Qts will make the oil level high. I run 4.0 quarts and the oil level hits right in the middle of the safe zone.
I'm on sure about this post?
Written by curly, on 06-05-2012 06:47
2004 Road Star the manual call for 4.33 US.QT, why is this post saying 5.3 is that an error?
Royay Purple oil,
Written by thetaylor, on 04-25-2011 12:12
I had posted here earlier and somehow my user id disapeared so I am Back, 
 
Hey guys do any of you out there know if the can use the Reg. Royal Purple oil for an 06 Roadie 1700, Their web page says to use the R.P "Max" (for bikes only) Is this just a scam to sell $15..00 per quart oil or will the reg 20 w50 ($8.00) work with our wet clutch??? 
 
Thanks Chris
royal purple
Written by bsydlo, on 09-06-2009 20:21
the purple is some great stuff, its expensive as ever, u would think the stuff is illegal paying 16 bucks a quart, i've been using royal for 2 oil changes now and its seems to be working quite well no engine problems or clutch issues for that matter either. i beat my 05 1700 like a red headed step child and cruise alot to, and i'm in NYC so theres alot of stop and go as well. i see alot of guys asking about filling up the oil and i do all the work to my bike i am sertified bike machanic. fill the oil at the dip stick if u'r novice at oil changing its going to overflow around second or third quart of oil.. the trick is to drain old and replace filter, then put about 2 quarts in very slowely and close the fill cap. there is air built up in the crankcase so it over flows what u are to do is start the bike (its perfectly fine) on 2 qt's and rev it about 3 to 5 X's then shut it down and open the fill cap and put the rest in.
reply to mctaylor58
Written by dthorny, on 07-13-2009 13:45
I use Royal Purple on my 06 R* and it works great. I changed my oil at 6000 miles and no problems. Your engine seems quieter and runs a little cooler at least here in AZ which is a good thing. Sounds like someone is trying to make a sale.
Oil change
Written by Ace19, on 07-07-2009 15:35
When changing your oil do you have to add oil to the crankcase filler and dipstick filler, if no why is this recommended
Synthetic oil
Written by mctaylor58, on 05-19-2009 22:44
Can anyone verify that I cam use Royal Purple 20W50 Synthetic in my 2006 Road Star, The dealer (That recently went out of business) said to use only Yahamalube ot it would mess up the clutches??? Is this a yahama scam????? 
I use Royal Purple for my truck and love it. 
 
Thanks, 
Chris
To Much oil
Written by gs1000, on 04-27-2009 18:15
I just changed my oil and found out the hard way that if you use the amount of oil stated in the owners manual, the bike will find a way to push it out. The clean up time was three times longer than the oil change itself. When you pay eight dollars a quart for synthetic oil, it hurts to find it all over your shop floor...........................................GS1000

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