All,
I was wondering if I could get some advice from everyone.
My trusty 1989 KLR 650 has been burning a fair amount of oil recently,
about 1 qt. every 100 miles or so. Also, when pulling up a hill, I would
loose power above 3000 RPM's. I thought it was rings, so I got started
and pulled the motor, and took the head apart.
Now that I have it apart, I am a bit mystified. Normally when I have had
problems with my other bikes burning oil, I find wear marks in the
cylinder from the rings, and its pretty obvious I need to do an oversize
piston. The cylinder looks and feels clean and smooth, like brand new.
Same with the piston, no wear marks or anything.
I got to thinking it may be valve seals leaking, but that seemed like a
bit much oil to burn through a simple valve seal.
Also, the bike would smoke a bit whenever I gunned it. And occassionaly
when I started it in the morning, it would puke out a smoke cloud. I
have yet to figure out why it only smoked sometimes, oil level inside
the engine did not seem to make a difference, nor did the pistion it was
parked in.
Any thoughts, concerns, or reccomendations would be greatly appreciated.
--
Regards,
Richard Bessey
System Administrator
Vivio Technologies
subpar dealers - was [dsn_klr650] what to doo next? bala
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- Posts: 115
- Joined: Tue Aug 19, 2008 12:08 pm
my 89 is burning oil
Richard - The only way to conclude anything is by measuring the
components. I'm going to assume you haven't bored this engine
already.
Did you take cylinder pressure tests (limit is 77-124psi) or do
cylinder leak-down testing? Oil pressure tests (11-21psi at 4,000
rpm)? These are pre-tear-down, so not that important at this point.
But in the future, take these measurement for baseline and interval
comparisons. If it's just seals, you'd see this with positive leak-
down testing and save a lot of effort. Visually, it's difficult to
determine extent of wear (smooth polished cylinder, no cross-
hatching, etc.), but only bore gauges, calipers and other tools will
provide the exact details. Of course, four leaking valve seals could
relieve your machine of a lot of oil but a quart in 100 miles is
extreme. It's nearly 1/2 the oil capacity. Anything is possible,
however only measurements will dictate the health of the compression
ecosystem.
I'd inspect and measure the valve seats, cylinder, piston, and rings
with appropriate tools/tests and compare with service limits.
For the seats, simply replace them. The blue smoke is a dead
giveaway in this case. And while you're in there, I'd consider doing
a complete valve job seeing it's a 1989. Of course, a qualified shop
should be able to provide you the results of doing a complete
inspection if you don't or can't do it yourself. A standard valve
job including replacing seals should run $200 if you deliver the
head.
The service manual describes measurements and service limits for
cylinder, piston and rings. I started to type/describe them, but
it's colossal. I'm simply going to refer you there.
My guess is the seals alone will make a big difference, but you're
this far and considering the vintage I take the measurements on all
compression components. Furthermore, have a look at the balancer
ecosysem while you're in there. As part of this inspect/clean the
oil screen on the clutch side. This screen clogging, a bad balancer
bearing and/or chain slack are silent engine killers. Specifically,
check the 3 gears with rubber dampening material for vitality. If
they're worn beyond reason, your balancer spring will be (unsafely)
slack. Also, measure the chain length as well. Again, follow the
service manual (straight forward) or email me.
Brian
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- Posts: 33
- Joined: Thu Nov 29, 2007 4:29 pm
subpar dealers - was [dsn_klr650] what to doo next? bala
The guys at Valcom in Trinidad were "over the top" great to work with. The knew we were coming off of the TAT, and bent over backward to help us with tires, oil and filter changes, etc..... I can't recommend them highly enough. PJ is the parts guy and was terrific. BTW, they all ride. This was 3 weeks ago.
----- Original Message ----
From: Reverend
To: boulder_adv_rider ; DSN_KLR650@yahoogroups.com
Sent: Tuesday, September 16, 2008 2:37:12 PM
Subject: Subpar dealers - was RE: [DSN_KLR650] Re: What to doo next? balancer chain within spec...suspect Kaw p/n 13164
I hear good things about Rocky Mountain Kawasaki in Longmont. I've gone
there a few times and they always treat me well, and their prices aren't
insane either.
I'd say most times, when I order parts on the net, particularly small ones
(washers/nuts/ bolts/gaskets etc) they always want to screw you on the
shipping. I *know* it's not $4 to ship a $3 gasket. I also know (and this
is a dealership special) that a $3 gasket everywhere else is NOT justifiably
$8. If they don't want to spend manpower on shipping a $2 part, use a
"minimum $15 order" or something! People will always throw in a few filters
or something.
This is why the internet is a great place to shop around on.
A, it allows you to compare prices and try different shops and
B, settle on a shop that offers great service.
Pre-internet, you were stuck with shops/dealers within a reachable radius
from home or work.
[Non-text portions of this message have been removed]> -----Original Message----- > Behalf Of boulder_adv_ rider > > Thanks for this link/heads up. Next time I'll be sending business here > or elsewhere. I'm recommending avoid Colorado Powersports in Boulder-- > just bad business and shotty service. It doesn't give a hoot about > customers.
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