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Old 02-21-10, 07:55   #1
6ix7even5ive
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Default seized engine symptoms

howdey chaps.

I would like to know how do i go about testing for, and identifying a seized motor?

Thanks for the help.
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Old 02-21-10, 08:31   #2
air_odie
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one real good trick and simple is to get to the starter and useing a battery try to roll the starter if it engages and spins the motor you know your starter works and you have rotation in the engine, if nothing happens either youre not doing it right or the starter is dead

if the starter kinda clicks but doesnt turn youre motor is not turning

you could do the same on the motor by getting to the flywheel

also could inspect inlet and exhaust ports for problems

check oil for metal shaveings

pull upper cover off and peer into the depths
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Old 02-21-10, 13:30   #3
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Default What I tried.

Ok thanks, Air.

First of all: I dont know much about engines and bikes.

heres what I tried:
1. Starting the bike normally has these symptoms:
  • everything is fine at first (lights, lap of dials, normal sounds etc)
  • when I turn the key, all lights go dead, while nothing else happens (almost like the starter drains all power from the battery)
2. I also tried releasing the clutch while pushing the bike very slowly:
  • turn ignition - all is as normal, lights, dials, everything.
  • put bike in 1st gear
  • pull clutch in
  • push bike slowly and release clutch
normally this would cause the engine to turn over one or 2 strokes, and normally youd hear the distinctive 3 cylinder sound for that stroke or 2.

on my bike: nothing! she pulls the bike to an immediate standstill while locking up the back wheel. This made me think that the engine is stuck ie. seized.??

Please Please help, my pride and joy is dead.
A friend dropped her at 30km/h - the dealers fixed her up, and 150kms after the repair, this is the symptoms? Maybe I should start a new thread?

Thanks Guys.
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Old 02-21-10, 13:39   #4
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You cant pop the clutch and jump start this bike, mine will just lock up the tire too. Make sure to check all your fuses first and go from there.
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Old 02-21-10, 13:49   #5
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Thanks Killer.

Yeah, I know you cant push start, but im just trying to get any evidence that the engine is actually moving (turning over) and not stuck in 1 position.

You should be able to hear the engine as you release the clutch, right? Cause mine does noting, no sound of any engine movement. And I think thats bad... very bad?
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Old 02-21-10, 13:52   #6
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If I get a rolling start on a slope and clutch it out then my motor will crank, but only a bit. Maybe put in on a stand in gear and try to turn the wheel by hand?
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Old 02-21-10, 14:03   #7
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nope man, cant budge the tyre, unless in Neutral or on clutch.

I am 100% certain tha the motor seized up (but I so dearly hope that I'm wrong)

What causes the motor to seize?
I just got it back from the dealers (150kms ago). they repaired it after a minor drop. Replaced engine covers etc. When I collected the bike - they told me:"the bike is smoking but it will clear. The smoke is only from oil that got to the engine and exhaust"

now Im sitting with a useless bike because of a seized engine.
what am I to do guys?

PLEASE help!?
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Old 02-21-10, 14:10   #8
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Quote:
Originally Posted by 6ix7even5ive View Post
Ok thanks, Air.

First of all: I dont know much about engines and bikes.

heres what I tried:
1. Starting the bike normally has these symptoms:
  • everything is fine at first (lights, lap of dials, normal sounds etc)
  • when I turn the key, all lights go dead, while nothing else happens (almost like the starter drains all power from the battery)
2. I also tried releasing the clutch while pushing the bike very slowly:
  • turn ignition - all is as normal, lights, dials, everything.
  • put bike in 1st gear
  • pull clutch in
  • push bike slowly and release clutch
normally this would cause the engine to turn over one or 2 strokes, and normally youd hear the distinctive 3 cylinder sound for that stroke or 2.

on my bike: nothing! she pulls the bike to an immediate standstill while locking up the back wheel. This made me think that the engine is stuck ie. seized.??

Please Please help, my pride and joy is dead.
A friend dropped her at 30km/h - the dealers fixed her up, and 150kms after the repair, this is the symptoms? Maybe I should start a new thread?

Thanks Guys.

Pull the spark plugs and try the starter again; i've seen bikes get water in one of the cylinders and not crank.


Try this same drill but in second or third gear with the plugs out at first.
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Old 02-21-10, 14:20   #9
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ok guys, maybe I should give more details. its just such a long story.
but heres the short version:

I was going on the highway in 6th gear.
  • first the engine started to sound SLIGHTLY different - almost like the intake was pulling air more agressively (if that makes sense?)
  • next I felt loss of power
  • I did what I thought was the most natural in that setup - I pulled in the clutch. - The bile died on me (While I was travelling at 120km/h)
  • I thought that by just letting go of the clutch shell start again. I was wrong
  • She locked up the back wheel at 100km/h (about 60 mph)
  • so I stopped and towed her home.
Now I need to figure out what to do?
ANY ideas?
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Old 02-21-10, 15:57   #10
MGFChapin
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Yeah sounds like a seized engine to me. A buddy of mine had that happen twice to his bike, the first time, someone put sugar in his oil filler cap. It caramelized and froze everything up, but we were able to peel most of it out and drain the rest in the oil, bike ran great afterward. A few months later, he came to me with the same problem, but this time someone had put salt in the filler cap and in his gas tank. Totally wreaked havoc, corrosion everywhere, engine isn't even remotely salvageable. Take a peek in your filler cap, see if you find any rust or unusual corrosion. Otherwise, drain the oil through a sifter and see what comes out.
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