it think my engines seized!

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

i was riding my gs 500 yesterday, when i was waiting at the lights it cut out. i tried to start it but the starter motor got slower and slower, i know i had charging problems, but i think that is due to a corroded connection on the starter solenoid.
as i was trying to bump the bike, the wheel was locking up in every gear. so i pushed it home which took 2 hours!
today i pooped it on the centerstand, put it in 2nd, 3rd, 4th, 5th and 6th and have tried to spins the back wheel by hand.
it will move when it takes the slack off the chain, but then wont budge, even in 6th. so u think the engine has seized?
cheers,
josh
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tlm50,mt5,sr50. rs125 extrema, cbr 400rr nc29 suzuki gs500e.Honda cbx250 rs . FJ1200 .fz6,fjr1300

Itchy · Super Spammer Joined: 07 Apr 2005 Karma :

Take the spark plugs out then try it again turning the wheel by hand , without the spark plugs you won't have any compression and thus the pistons should move up and down somewhat easier than normal when the rear wheel is turned by hand.

If they don't then your engine might be seized.
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stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Sounds to me like the battery is flat.

Charge the battery and give it a whirl.

I think you are pushing your luck trying to turn over a 500 twin by pulling ther rear wheel round, even in top. Or you could try doing it with the sparkplugs out.

If you wanted to check if the engine turns, you'd be better getting a socket on the end of the crank and trying to turn it by hand. Unfortunately from what I can see on pictures, a GS500 doesn't have an inspection cover allowing you to do this without removing the crankcase covers.

In general, if a big 4-stroke like that has seized, it is going to need a wholesale replacement of parts anyway. Giving it a try with a fully charged battery is unlikely to make things very much worse.
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Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

Try the same with the spark plug taken out.

Take the bike out of gear. Take off the side cover to give access to the nut on the end of the crank, the one used to adjust the valves. Try turning the engine over by hand.
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veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

yeah taking the plugs out was the first thing i did and it dnt budge.
as for the battery issue, its a brand new batt andi charged it last nite. the starter motor would engage so i took it off the engine then tried it, and nothing. so i looked at my starter solenoid, it looks like one of the connections is slightly corroded. mybe this is creating o short and draining my batt?
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tlm50,mt5,sr50. rs125 extrema, cbr 400rr nc29 suzuki gs500e.Honda cbx250 rs . FJ1200 .fz6,fjr1300

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

im having trouble getting the flywheel cover off aswell, ive undon all the bolts but the casing qwont budge, i dont want to his it with anything because i dont want to damage it
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Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

Can't say for definate on your bike but many have a dowel to locate the cover.

I usually just gently tap all around the cover with a soft mallet to release it.
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MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Finglonga · World Chat Champion Joined: 27 Jul 2004 Karma :

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

cheers guys, well i will try that, and if the engine turns over, that would be ace, then all i would need to do is hopefully clean up the connections on that starter solenoid, i will jump on it now before it gets dark. cheers
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veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

just tried to turn the engine over on ther rotor on the right hand side of the engine and it made a crunching noise and wouldnt turn, i think i may have slightly broken it. haha.
probably on con rod or sumut has snapped. there is oil in the engine so i dont think that would have been the problem. ah well. looks like im gunna have to cath a bus and a train to work. pants.
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stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

haha thats awesome.
ive already taken the starter motor off, but th engine ant budging. i have achieved the unacheivable!!!!!! this should go in the bcf history books!
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SoND · World Chat Champion Joined: 10 Jul 2005 Karma :

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

SoND · World Chat Champion Joined: 10 Jul 2005 Karma :

What happened there?
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stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

thats nice, thats nice.
jut made a few phone calls.
one lads got a xj400 i could have for 200 quid, just need the back brake sorting.
and another chap has offerd me a near mint 1979 gs 750 for £500 which has had a complete rebuild, just need to put the light and indicators on it? which should i go for? hmmmmm
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tlm50,mt5,sr50. rs125 extrema, cbr 400rr nc29 suzuki gs500e.Honda cbx250 rs . FJ1200 .fz6,fjr1300

NiteMare · Spanner Monkey Joined: 12 Sep 2008 Karma :

i've no idea of the XJ400 but would expect it to be a revvy little thing...

but for 500 i'd seriously consider the GS750 if i was needing another bike
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it ain't broke...

i ain't fixed it enough

Lukaz2205 · Nova Slayer Joined: 19 Apr 2008 Karma :

i hate to mention this but if you aint running fast enough tryin to bump the bike it will lock the rear if your in gear when you bang the clutch out i allways leave it in second, and jump on the back seat an hold the bars so my weight pushes the rear tyre into the floor.

was harder for me in the snow and ice mind.....
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1st....2nd....3rd....4th.....into 5th......6th field and stopped in a heap!

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Drain the oil and see if there are any bits in it.

£500 for a near-mint GS750 is a total bargain. Buy it, sell it for profit, get a modern bike.
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ms51ves3 · Super Spammer Joined: 07 Jun 2007 Karma :

veze · Trackday Trickster Joined: 20 Jun 2007 Karma :

i mite not get the gs, but my i duno, i think it cud go to a better home than me, cuz i ride through the winter it will get all shit up, and that would be a dam shame. i think id mite get the little xj and potter round on that while i save up cash and get me newer bike for summer, sensible option? oh and yeah ther is, i seen bits of swarf in the oil when i took my starter motor out.
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tlm50,mt5,sr50. rs125 extrema, cbr 400rr nc29 suzuki gs500e.Honda cbx250 rs . FJ1200 .fz6,fjr1300