crank seal problem

[dandan0162]

thought id share my problems im having with my kr any advice eppreciated.
so ever since having the bike it was like a oil slick but got worse as the years went by
so i got a kit of the web included the seals and bearings.i then had them fitted to a kr1 crank because i had one with good rods and belived them to be the same ?i got the crank back and the clutch side seal was obviously not the correct one,so i got a genuin one,a bearing locator was on the wrong side, so i dremiled a notch in the case for it to seat,so that shouldnt be a problem n the cases n seales was all fitted right n seals was good tight fit was done by fahron i asked about the end seal wich was 2mm to big n said no thats the one you gave me so has anyone else brought a kit with wrong clutch side crank seal to big ?
the bike started n ran fine, in the pipes was about 200 ml on right and 100ml or more in left exhaust pluss whateva painted my garage how a bike can run like that is crazy it sounded sweet i put a a4 card behind right pip n reved bike n the card was coverd with gooey shit ohhh no its back id just polished her up n thought i finally had it under wraps , so i was thinking two stroke pump then i thought no so iv stripped it back i just need to do a few bolts n ill be at the crank i feel like im pissing in the wind

[jarno]

where did you buy the crank seal and bearing set?

the only seal thats diverend these days is the ignition side seal.

do you have got a picture of the set?

[dandan0162]

It was about a year jarno I carnt fond the invoice, but ill look and see if I can find the same set they cost around 160 and that was 4 seals and 4 bearings Also I got my left n right mixed up its more oily left

[martin]

the seal is different on the stator side of the crankshaft [no groove on seal. last few I have had rebuilt at bdk have been like that]its because that seal is no longer available. is gearbox oil staying at the correct level. if it is, I suspect crank seals are ok.

are your carbs set right and synchronised,
is your coil ok. and does the problem switch to the other side when you switch ht leads over [as running the bike if not firing correct will fill up with oil/petrol in the exhausts]
feel the exhausts at the headers. just as they come out the barrels. are they getting hot and are they the same temperature

[jarno]

here is a picture of the ignition side crankseal

on the right side the old and (original) seal on the left the replacement.

fitted the replacement seal a couple of times and no problems yet, seems to do its work OK.



cheers Jarno

[dandan0162]

martin there was some fafing and i did notice the left spanny was colder than the right,i swaped the fuel tap then the bike seemes to run ok on both cylinders,the coil seem to be ok but i havnt checked it properley yet,
i left the bike on prime n fuel was everywhere what does that mean poor carb setup?hopfully havnt brung my self to split yet as its all good ther i just no it is

[dandan0162]

jarno the seal problem was they sent me a 25 52 when should of been 25 50 but I sorted that out,

[martin]

take your carbs apart and clean them. then reset your float heights and check the height and re check them . fuel will only pour out of the overflow pipes if the float valves are not closing[sealing] properly. you must get carburation correct . [even on prime when fuel is always flowing. float valves should seal and there should be NO overflowing]
if it were me I would.
1 empty fuel tank and rinse out so is fully clean
2 strip and clean fuel tap [and poss buy new rebuild kit]
3 strip and clean carbs . poss fit new float valves [very important to get float heights correct]
and finally make sure carbs are fully synchronised,
then move on to other things.

both exhausts should be the same temp. this is importan

[dandan0162]

thanks martin i took your advice,iv now cleaned and sorted carbs i think you can leave on prime with no leaks ill put some new ht lead and new plugs/caps to help try rule that
ill put the motor back in and gearbox oil n see what happens,the stuff drained frm exhausts looks to much like gear box oil to me but i hope am wrong [-o<