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Old 01-09-2007, 06:55 PM   #1
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2 stroke help please

So..I have an 83 honda cr125 I am trying to restore to good running condition. It has a freash top end and the engine runs strong in neutral(very responsive) The bike has been sitting for years and I am suprised I have it running as good as it is..anyways once you put it in gear it is extremely sluggish..almost as if the clutch is slipping and when i drain the oil it is very thin almost watery. The clutch plates look ok and i want this thing to run right. Is it possible there is water leaking into the crankcase and causing the plates to slip or is there something else going on..multiple problems?????

It also has a brand new spark plug and the reeds look ok. Im wondering if the seal by the impeller is leaking .....but the water from the radiator is clean. Please help im getting frustrated

thanks in advance
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Old 01-09-2007, 07:01 PM   #2
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Usually water in the oil will make the oil turn white. I'm not familiar with this bike but that may be a little help.
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Old 01-09-2007, 07:05 PM   #3
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Its not white white but kinda milky. and really thin.
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Old 01-09-2007, 07:22 PM   #4
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As far as the water, it could be a lot of condensation in the crankcase.
Try running it a time or 2 to burn all of it out.

As far as no power, how does the plug look?

If it looks lean, it could be leaking vacuum at the crankcase seals or the reeds could be bad.
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Old 01-09-2007, 07:23 PM   #5
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plug looks great. You think there that much condensation in there? Also is water in there whats making it slip?
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Old 01-09-2007, 07:24 PM   #6
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engine seems to run strong except when in gear. Has a "mushy" feel when accelerating. real slow
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Old 01-09-2007, 07:26 PM   #7
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Oh and the reeds look ok too. money is real tight right now so I dont want to replace the plates if I dont have too. You think its the seal at the impeller?
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Old 01-09-2007, 08:37 PM   #8
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how long has it been since the oil was changed? change the crankcase oil and run the bike again, if it gets cloudy(milky) you're getting coolant in there somewhere. pat is 100% correct. if that bike has sat as long as you stated, there is the possibility of a good amount of condensation in the cases. and you say it "runs well" other than when you put it in gear, does it rev freely? could be trash in one of your jets starving for fuel? i dunno. post up more of the symptoms and ill give you my best guesses.
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Old 01-09-2007, 09:00 PM   #9
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definately change out the gear oil...2 strokes feel sluggish at low RPMs, make that sucker howl at the moon
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Old 01-09-2007, 11:49 PM   #10
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Ive changed the oil twice. It revs freely. Runs good in nuetral. Is the water whats causing it to slip? any more suggestions?
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Old 01-09-2007, 11:51 PM   #11
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when its in gear and your rollin it is real sluggish. and I mean real sluggish i can almost bet its slipping
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Old 01-10-2007, 09:31 AM   #12
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like....bogged down?

when riding it does it feel like you are in the wrong gear?

how does it act when it's in gear and clutch is pulled in?
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Old 01-10-2007, 09:51 AM   #13
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are the wheel bearings turning freely? are your brakes dragging? how do the chain and sprockets look? help us help you man. . .
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Old 01-10-2007, 10:18 AM   #14
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Quote:
Originally Posted by jetcycles
are the wheel bearings turning freely? are your brakes dragging? how do the chain and sprockets look? help us help you man. . .
if it aint the clutch check ^^^ and your slack adjusters.. if you chain is ultra tight it will it up like that.

in nuetral when the bike is warm... can you twist the throttle all the way at once .. and it A) scream like motha fuka.. or B) bog down then scream... or C) just bog down??
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Old 01-10-2007, 10:27 AM   #15
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Quote:
Originally Posted by hotnanas
like....bogged down?

when riding it does it feel like you are in the wrong gear?

how does it act when it's in gear and clutch is pulled in?
Yeah kinda seems like im in th wrong gear but wants to go
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Old 01-10-2007, 10:29 AM   #16
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Quote:
Originally Posted by jetcycles
are the wheel bearings turning freely? are your brakes dragging? how do the chain and sprockets look? help us help you man. . .

yeah bearings are a+. Bike rolls great. chain and sprockets a+. I am positve the clutch is slipping I just dont know why. Does water in the oil cause the plates to slip?
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Old 01-10-2007, 10:30 AM   #17
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Quote:
Originally Posted by Clayton9698
if it aint the clutch check ^^^ and your slack adjusters.. if you chain is ultra tight it will it up like that.

in nuetral when the bike is warm... can you twist the throttle all the way at once .. and it A) scream like motha fuka.. or B) bog down then scream... or C) just bog down??

The answer is A it screams like virgin. :icon_bigg The engine runs strong just when theres a load on it it sucks
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Old 01-10-2007, 11:03 AM   #18
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hey bro.. i may just need new plates... its an old bike... depends on when the last time someone put clutches in it.. when i race (always 2 strokes) i did clutch plates every 4 or 5 races.. not that it NEEDED it.. but if I tried to go 6 or 7 races.. i could tell.. so i played it safe.
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Old 01-10-2007, 11:11 AM   #19
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I might end up throwing some new ones in there. I gotta figure out where the water is coming from though
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Old 01-10-2007, 12:05 PM   #20
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my kx 125 had water leaking from the water pump into the crank case and i know this might sound stupid but on my rm125 and only on this bike for some reason if the clutch cable was not adjusted exzactly right the clutch would slip
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