Maintenance & Technical > KX500 Original
need some help just bought kx 500
Thorina:
--- Quote from: khaavet on February 23, 2009, 05:31:41 PM ---The spark plug is wet and smells like gas. If I take off the pipe I shoulde be Abel to c the power valves and see if they are installed correctlly right? They are closed when the rod is pushed all the way in and open when the rod is pulled out. How can I check if it is working when the bike is running. Sorry kinda new to this kipps system.
--- End quote ---
Yeah, duh....you sure could.
Ok....then check and see if it operates smoothly.....before you even pull the pipe.
You need to determine if it's working.
It's an "educated" guess on my part, based on a short blurb you put up.
When you did the top end....did you look at the power valves?
KX500freak:
--- Quote from: khaavet on February 23, 2009, 12:32:59 PM ---so here is the story i bought a kx 500 1990 bike was 100% stock owner had it since it was new.all he ever did was change oil clean filter new chain and tire and put a 15 tooth gear up front and he had changed the rings once.so i took the bike out and was not happy bike ran good WOT but had a hard time getting the front end up Yes even in low gears 2,3,4 so i tore into it replaced piston,rings,reeds,sproket in front to a 14, redid packed silencer. and still it seems like the bike is very boggie and kinda dead on the bottem end like i have the choke on. now i am changing the clutch as we speak (about time after 19 years) so my guess is one of 2 things my jetting is off (set at stock 168 main 60 slow clip at 3) or my cylinder is totally shot (did not have any freddie couger marks in it looked good) any body have any good ideas
thank you :? :? :? :? :? :-P
--- End quote ---
does it surges @ bottom end,could be the mainjet ,60 could be slightly to big.
i am at sealevel and my k5,s have 58 main
what premix ratio u run ??
does it smoke excessive?
--- Quote from: khaavet on February 23, 2009, 05:31:41 PM ---The spark plug is wet and smells like gas. If I take off the pipe I shoulde be Abel to c the power valves and see if they are installed correctlly right? They are closed when the rod is pushed all the way in and open when the rod is pulled out. How can I check if it is working when the bike is running. Sorry kinda new to this kipps system.
--- End quote ---
thats no good ,plug should be dry and tan colored.
for check on the kips there,s a tun of knowledge bout kips ,its valves and rods ,allen bolt mod etc:
utfs :wink:
for valve operating check:
remove the expansion chamber that sits at the base (right side cyl)
it,s the little grey cap ,take it off ,start the motor ,give it a few revs ,
best done when warmed up allready btw.
you will see the rod come out when you rev it,and it goes in when you let go of the throttle
khaavet:
okay guys thank you i will check and c if the kips is working right waiting for my new clutch now shoulde have it in a few days. i am running 40:1 ratio at 2500 to 3000ft above sea level so im sure my jetting is way off being that im running stock jetting at 168 main 60pilot jet and 3 on clip waiting for new jets i got a 165 main 55 pilot and i will put the clip at 2nd from the topp i hope this will work i cant wait to feel the widow maker power :lol: :lol:
Thorina:
It won't be a widow maker if you speak nicely to it at all times. :-D
Ok, back up a few steps....can you tell me why you just bought a bike....rode it, it was experiencing some serious performance problems....and you're first thought was to tear it all down rather then give the guy you bought it from a knuckle sammich?
Did you get it super cheap....did the guy you bought it from tell you it didn't run right?
Fill in some details here.
What was wrong with the clutch?
This is not a 4 stroke...and it is a bike/motor that will run almost no matter what. A minor jetting problem is not going to make the bike behave the way you are describing. It might sputter and burble, whatever....not run well....but it'll still pick up that front end with a crack of the throttle.
It may sputter, sputter then wheelie and scare the do-do out of you....but it'll still wheelie. :-o
I used to live at 7000+ ft.....2-3K won't make that much of a difference. Not enough to make the bike not run.
khaavet:
well ibought the bike for 850 dollars so i think that is a good deal the guy i bought it from did not know about bikes. like i said he never changed the clutch in 19 years so i think that it is fried all he ever did was change the rings once about 10 years ago this bike was riden about 15-20 trips per year so it got a fair amount of hours on it. i think it is a combo of things the kips may not be working correctly the jetting is off the clutch is bad so i have to do the jetting check the kips change the clutch after that has been done the only thing i can think off is that the cylinder is done and needs to be re plated
what do you guys think? :?
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