How to replace rings on Linhai 257cc By jenningsjosh (Read 3,757 times)

[jenningsjosh]

ok... i can do that... i have a local shop that will prolly do it.... with my cylinder/bike only having 1200 miles on it... i bet it is fine without this process... but if you think i need it... then i will do it...

If you can give me the exact point on the cylinder that needs it... i can take a pic and you can determine if i need it.. on the outside of the piston? i can still feel and see the groove pattern... little tiny boxes.... is that what u mean? thanks josh

[jct842]

The pattern in the cyl should be from top to bottom. I would still have a shop hone it for you. check end gaps. when breaking in accelerate hard to 4000 rpm then let off and coast to idle. repeat for 5 min then cool down completely, then longer intervals. always cool down completely. This is what the machine shop told me when I did the top end on my majesty. And don't let the oil in there too long either, change it.

[jenningsjosh]

i can still see the pattern inside the cylinder pretty well...

I was watching a video on how to change rings... they said something about #2 ring having a lip.. where it would push oil back down... my ring doesnt have a lip? is this normal for scoots?

[jenningsjosh]

Ok.. I got my circlips today... they are correct diameter.. but they are just slightly thicker... they do fit into the groove... but I cant get those suckers in for nothin! Rrrr

Edit:::::

I got it in.. one side tell I put the rings on..

Now can someone tell me which side goes up or down? I underdstand on the top ring the letters go up.. but how about the second ring? Mine does not have a lip...and maybe a quick how to on the spacing of the rings.. I know that they can't be in a line.. and I know they can't be over the holes from wrist pin... any other tips?

[vansmack2]

You can download a pdf from the link below that will give you basic info on installing the rings. The pdf is for a 50cc GY6 big bore kit install, but you will get the idea from reading it. Ring info starts around page 13.

www.chinesescooterreference.com/pdf/TopEndInstallGY6.pdf

[jenningsjosh]

Alrighty... I got the piston all ringed up.. and put back on.. put my head back on as well.. now its tine to connect everything else..

Y is it.. that when u take something apart its like bam bam bam done.. go to put it back together and its slow as snails...lol

Neesd to get timing chain put back on...

Need to fill the coolant back up and add a lil oil...

Connect all vac n gas lines.. hook up carb... and I think I will be good to go

Nees to

[jenningsjosh]

Ok.. what is going wrong? It started.. but the starter never stopped kickin...even if I turn the key off.. I had to pull plug on battery..

[jct842]

Get your meter out. Either starter solenoid is stuck on or the start switch is stuck in the on position.

[jenningsjosh]

Are you sure its nothing I have done to it? I mean I didn't touch it.. not even the wires too it.... but I have a feeling I did somehing wrong..

Seriously I am within an inch of giving up.. so if anyone on here wants to buy it make an offer..low ball me.. I won't refuse

[jenningsjosh]

this is me after screwing around with this stupid flippin scooter!

[scooterbob]

Retrace everything you did. If it didn't do this before, then it is some thing you did. Take a couple deep breaths and have a couple of beers. Double check every thing and never give up.
Starter connections??//

[jenningsjosh]

Only thing I can see.. is I melted the plastic connector to the starter.. this was on the last ride before I started messing woth compression.. its now a big ball of plastic.. i was messin w enricher wire.. and pulled starter plastic clip from its holder.. exhaust got it...