Road Star Clinic Forum
Welcome, Guest
Please Login or Register.    Lost Password?
Burning Oil (1 viewing) (1) Guest
Go to bottom Post Reply Favoured: 0
TOPIC: Burning Oil
#101751
shacky (User)
Junior Boarder
Posts: 165
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: Rochester, NY
Re:Burning Oil 1 Month ago  
I'm not a bike expert but from experience with cars sounds like dealer may not have done good job honing cylinder walls when installing HC pistons/rings. Without good crosshatching the rings won't seal right.

But if it's the rings you would expect to see increase in pressure with a couple squirts of oil.

Coming out the breather does indicate blow by so I would question the leak down test. Leak down is more than just rechecking compression after adding oil. It's seeing how long it holds up. Have no idea what specs are for Road * let alone with HC pistons.
 
Logged Logged  
 
  The administrator has disabled public write access.
#101758
StarCruiser06 (User)
If you can't be with the one you love... Wait!
Gold Boarder
Posts: 718
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: Hutchinson Island, FL Birthdate: 1951-08-13
Re:Burning Oil 1 Month ago  
Hey, ultrastar and Dave03MS...
 
Logged Logged  
 

Over 50...?
Never miss the oppertunity to pee, never waste an erection... And never, ever, trust a fart!
  The administrator has disabled public write access.
#101787
ultrastar (User)
Fresh Boarder
Posts: 6
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
I'm losing about a pt. every 300 miles
 
Logged Logged  
 
Last Edit: 2008/07/20 14:23 By ultrastar.
  The administrator has disabled public write access.
#101788
ultrastar (User)
Fresh Boarder
Posts: 6
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
Dave it sounds like we have the same problem, mine seem to have happend right after the trans recall I hope someone can help us with this problem
 
Logged Logged  
  The administrator has disabled public write access.
#101799
Dave03MS (User)
Fresh Boarder
Posts: 5
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
Always checking for oil leaks when i fluff n buff the bike..
Not finding any leaks... No oil on the floor etc...

Assuming the rings are ok...

Do you know if there anything else that could b pumping pressure into the crankcase ??
Maybe some kind of smog pump ...
Keep thinking maybe it's something real simple the mechanic didn't put back correctly ..
 
Logged Logged  
  The administrator has disabled public write access.
#101800
Dave03MS (User)
Fresh Boarder
Posts: 5
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
do you think your oil is going out the crankcase breather hose ??
 
Logged Logged  
  The administrator has disabled public write access.
#101802
ultrastar (User)
Fresh Boarder
Posts: 6
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
I put on the Barans crankcase breather filter and no oil from there or on the ground.I'm stumpped
 
Logged Logged  
  The administrator has disabled public write access.
#101848
n5ifi (User)
Junior Boarder
Posts: 113
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
I can tell you one thing. My experience with Briggs and Stratton racing engines is that they have about as much compression coming back down the hole as they do going up it. It was a real experience trying to figure out what to do with the crankcase pressure. I finally vented it from several places in the case to a check valve installed in the exhaust system. It will help to scavenge the pressure that way if installed correctly. I'm sure the roadie is very simuliar. I rode several thousand miles before checking my air cleaner this time but it did have a small pool of oil in it also. I'll bet his rings are fine. How much oil did you put in the motor at fill up? I put 4 quarts in mine. Remember too that compression readings are cam timing dependent. Is it the same cam as stock installed the same way? straight up? advanced? retarded? Many times a stock cam will show much higher cranking compression than a modified cam espsecially if your trying make more power in a higher rpm range. The rings should be pretty well seated in the first 5 minutes of running the motor. Is the motor smoking?
 
Logged Logged  
 
\\\"MOTORCYCLE ENTHUSIAST\\\" not \\\"Biker Trash, \\\"Biker Scum\\\" or Biker Anything......
Proud to Live in the USA
  The administrator has disabled public write access.
#101870
ultrastar (User)
Fresh Boarder
Posts: 6
graphgraph
User Offline Click here to see the profile of this user
Re:Burning Oil 1 Month ago  
Hi n5ifi
I have always filed it to the center of the marks on the dip stick for the first year are so the oil leavel would never change it seems to have changerd after the trans re-call.
I have no oil leaks nothing comming out of the crankcase filter plugs look good but when I go on long rides I will notice that my oil pressure gage will drop and I will have to put a qt in it to get to show on the dipe stick.
 
Logged Logged  
 
Last Edit: 2008/07/20 21:07 By ultrastar.
  The administrator has disabled public write access.
#101936
Blackroadie (User)
If it ain't broke, You ain't ridin' hard enuf !
Platinum Boarder
Posts: 1609
graphgraph
User Offline Click here to see the profile of this user
Gender: Male blackroadie1700@yahoo.com Location: Bluffton, Ohio Birthdate: 1960-09-25
Re:Burning Oil 1 Month ago  
Ultrastar ...just for your info, My dipstick NEVER reads the same. I check it the way Yami tells us to. Used to scare me, bottom of the stick one day top of the hatch marks the next, without doing nothing to it.I quit using it, I do an oil change with 4 qts. going in, I have no leaks or smoke and when I change the oil I get 4 qts. out. I know you had the trans recall done before it started, so were different there but, how much oil do you put in and how much do you get out when you change it? Just curious.
 
Logged Logged  
 
04 Midnite Silverado








  The administrator has disabled public write access.
Go to top Post Reply
Powered by FireBoardget the latest posts directly to your desktop
...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->
New Forum Posts
5 posts, last by:
easyrider003
17 posts, last by:
Capt.Kirk
new topic by:
IowaRoadie
25 posts, last by:
Capt.Kirk
17 posts, last by:
IowaRoadie
39 posts, last by:
Cougar
4 posts, last by:
BIGBEN1
16 posts, last by:
Capt.Kirk
17 posts, last by:
Fifty Yet
17 posts, last by:
Scrubber
11 posts, last by:
Capt.Kirk
19 posts, last by:
Capt.Kirk
10 posts, last by:
gab
4 posts, last by:
bubbaburl
16 posts, last by:
pistolpete
7 posts, last by:
takehikes
4 posts, last by:
gab
11 posts, last by:
Jason19
41 posts, last by:
slezy
27 posts, last by:
Scrubber
49 posts, last by:
Tbone21
25 posts, last by:
elmio
17 posts, last by:
elmio
15 posts, last by:
Papa Bear
13 posts, last by:
Papa Bear
8 posts, last by:
yara
11 posts, last by:
cartersta
4 posts, last by:
bushrjackson
5 posts, last by:
SobaCracka


The Road Star Clinic is a collaborative community of riders who archive and publish user contributed technical data about Yamaha Road Star motorcycles.

We also sponsor the creation and support of other community websites similar to our own. Inquiries about availability of a website for your community can be submitted to us via any "Contact Us" option on the Clinic.

Copyright 2003-2007 Road Star Clinic and its respective authors. Road Star Clinic is sponsored by the folks at MLSHomeQuest.com.