bike quit today...

[TheSkipper]

So the ol hsun 200gy died on about 8 miles into a ride. It was running great then it quits and the back tire locks up doing around 40mph. checked the oil, it was good. Went to kickstart it(bad battery) and i cant even kick it. After a few min of chuck norris kicking it seemed to break free and it would turn over with some resistance.

Locked the bike up after that and rode with my dad back to the house and grabed the truck and brought it home. Got it home i pulled the plug and poured some tranny fluid in cyclinder and kicked over several times and it loosend up alot. Put the plug back in and hooked a ATV battery to it and spun it over several time and it cranked. Let it set and idle for about 15 min with a fan on it, then i drove it down the road and at WOT it dies like its out of gas.

Any ideas what caused thiis and why its dieing now? It was running great the entire trip.

[FastDoc]

Sounds catastrophic I'm afraid. It seized and will need to be rebuilt. Do a compression check.

[JTCAndrew]

I agree x2 Compression check! Don't sound good at all...... :cry:

[SpudRider]

I'm sorry to say I agree with the others. :(

Spud

[Weldangrind]

Can you kick it over now? Is it harder to kick than normal? How does it sound now?

[TheSkipper]

It spins over normally now, and it runs great at idle. No smoke, no oil leaks. I'll do a compression check tho to be sure. I didnt get a chance to drive it anymore.

[katoranger]

If the compression checks out and it still runs poorly off-idle and dies you may want to consider a new CDI. Take a peek to see if it has a bulge in the black plastic.

[TheSkipper]

are these bike bad about over heating? Mines really low geared (14t front sprocket, 56t rear) and this trip was the longest road trip iv been on so far. At 40mph its running about 6000rpm. Is that a good cruzing rpm or no?

[Weldangrind]

No, they don't typically overheat. 6000 rpm is a litlle higher than I'd want to run at, but it shouldn't kill it. Were you maxxed out at 40mph? If so, I'd be changing sprockets.

I'm still struggling with why it locked up. I guess it's theoretically possible that the rings could have seized to the cylinder, but I would have guessed that a ring would break in the process.

Still scratching my head on this one...

[TheSkipper]

I think it tops out at like 65. I dont understang why it would lock up like it did either. the odo reads 187 km, but the cable is broke.

[JTCAndrew]

I would also take a close look at your drive chain, Rear wheel Hub and Brakes assembly. I too am scratching my head........Hmmmmm

Definately do the Compression Check!

[Weldangrind]

I wondered about that as well Andrew, but he also reported that he couldn't kick it over, which rules out the driveline. Something was not happy in that engine / trans.

[FastDoc]

I would also take a close look at your drive chain, Rear wheel Hub and Brakes assembly. I too am scratching my head

Good idea also, but that would not have made it hard to kick, unless it was still in gear...

These bikes are geared hoplessly low form the factory. 15/45 is a good all-around regear. If you get it running OK.

Compression check.

[katoranger]

I found 17/45 to work well on the street. Still able to manage off road too.

Also make sure it is not running too lean.

[FastDoc]

I meant 17. :oops:

Been a while since I had a Hondoid. :wink:

[TheSkipper]

I would also take a close look at your drive chain, Rear wheel Hub and Brakes assembly. I too am scratching my head

Good idea also, but that would not have made it hard to kick, unless it was still in gear...

These bikes are geared hoplessly low form the factory. 15/45 is a good all-around regear. If you get it running OK.

Compression check.

I had the clutch pulled in when i was trying to kick it over. Even it was in gear I dont think it would have been that hard to kick.

But i ordered a New Rear tire and a 35 tooth rear sprocket the day before this happened.

[Wild_Alaskan]

is there oil in the engine?

[FastDoc]

He said the oil was OK.

[SpudRider]

is there oil in the engine?
That's a good question. ;) Is the bike burning oil? Have you checked the oil level lately? If the engine seizes, something is usually seriously wrong. :(

Spud :)

[TheSkipper]

I changed the oil friday, and the oil level was perfect after this happened.

[SpudRider]

I changed the oil friday, and the oil level was perfect after this happened.
Thank you for verifying the oil level, Skipper. :) Have you had a chance to check the compression?

Spud :)

[TheSkipper]

I'll check it tonight after i get off work. Then I'll report back tomorrow morning.

[Weldangrind]

That's good, because I'm gonna need closure on this one! :lol:

[TheSkipper]

Happened again. Took it down the road and back and i heard a sharp ping and it locked up. I think it has PTV issues because it stopped TDC.

I'm gonna pull the valve cover and see if it has a bent push rod or somthing.

[davidsonsgccc]

check to see if you have good oiling. since you did an oil change maybe filter is blocked or misaligned.

[Weldangrind]

I can't figure that one out, TheSkipper; what is PTV?

I wonder if your oil pump pickup is clogged. Pull the right side cover and remove the three Phillips screws from the rotor. You might find junk behind it.

[TheSkipper]

Piston To Valve contact

[Weldangrind]

Ouch. Hope not. :!:

[Frog]

Only other thing I can think of is Crank drive to the Clutch. But it is very odd that it stops dead in a seemingly terminal way and will then run again...

I'm mystified too

Frog :?

[TheSkipper]

Where can i get rebuild parts for my bike?

[FastDoc]

Buy a new motor.

Hooper Imports is one good suggestion.

[JTCAndrew]

I agree with FastDoc x2 Start Researching for a Replacement engine or Part the machine out on ebay or craigslist. Put your money back into something reliable like a Qlink, Or maybe even a Used Jap Bike like Honda or Kawasaki. At least you can get parts for the above real easy! Whats your thoughts and Budget maybe we can make some more suggestions and help guide you in a good direction.......It maybe cheaper in all to get the engine as long as you can turn a wrench fairly well.....It may NOT Happen over night but if you wanna save some $$$ Start searching the web......Probably not want you want to hear but...... :cry:

[JTCAndrew]

Hmmmmm Just found this......Haven't read it yet but wanted to post.

http://www.salvagedirect.com/asp/viewitem.asp?itemid=818935

Edit: CRAP - Auction ended.

[JTCAndrew]

Sorry not much help But you can start your search here:

http://www.google.com/webhp?hl=en#sclient=psy&hl=en&rlz=1R2GZAZ_enUS328&site=webhp&source=hp&q=hsun+200gy+engine&rlz=1R2GZAZ_enUS328&aq=f&aqi=&aql=&oq=&pbx=1&bav=on.2,or.r_gc.r_pw.&fp=7b7c22e5a854be96

:cry:

[FastDoc]

http://www.hooperimports.com/product.aspx?pf_id=200ccV-H

Exact same motor I put in The Dirt Rat :D . Better than the OHV unit that puked on you. Highly recommended but I also agree with Andrew. I'd consider a used Japanese bike or a semi-Japanese bike like a Q or a Zong...

[Weldangrind]

I still want to know what's up. TheSkipper, have you removed the right side cover?

[katoranger]

The new engine is the most cost effective route.

[TheSkipper]

push rods were bent, so im guessing its in the trans

[FastDoc]

If the push rods were bent it's in the pushrods, not the trans. You'll need to pull the head. It's possible/likely you have a bent valve(s).

Compression check?

[katoranger]

I will pull mine apart and send you the push rods.

[TheSkipper]

If the push rods were bent it's in the pushrods, not the trans. You'll need to pull the head. It's possible/likely you have a bent valve(s).

Compression check?

I think the push rods would have bent if the piston contacted the valves.

[FastDoc]

Agreed.

[TheSkipper]

My compression tester is to small for it BTW.

[FastDoc]

You can do the old thumb trick. Remove plug. Kill switch set to off. Throttle open. Put thumb over spark plug hole. Push as hard as you can and hit starter button. If the compression cannot strongly blow your finger off the hole compression is inadequate and likely below 100 PSI.

[TheSkipper]

You can do the old thumb trick. Remove plug. Kill switch set to off. Throttle open. Put thumb over spark plug hole. Push as hard as you can and hit starter button. If the compression cannot strongly blow your finger off the hole compression is inadequate and likely below 100 PSI.

Haha cool! ill try it tonight. never even thought about that

[Weldangrind]

I'm still confused about how PTV contact could occur. The timing is obviously correct (or if it's not, it's close enough to run), because you were able to start and ride the bike again.

I'm hoping that you'll do a teardown if you buy a new motor.

[TheSkipper]

Thats just what i felt like it was, ill tear it down this weekend and see whats up with it.

[Weldangrind]

Please take lots of pics.

[SpudRider]

Please take lots of pics.
X2. ;) We are sorry for you difficulties. :( However, we still love to see photographs of disassembled motors. :oops:

Spud :)

[TheSkipper]

found some small metal shavings in the oil today.

[SpudRider]

found some small metal shavings in the oil today.
That is not a good sign. :(

Spud