Author Topic: Blew a Piston and cylinder :(  (Read 1123 times)

Chris0381

  • Hero Member
  • *****
  • Posts: 652
    • View Profile
Blew a Piston and cylinder :(
« on: June 18, 2018, 06:29:38 PM »
After 8k perfect miles running spectacular, one of the circular spring clips that hold the piston to the rod broke off and ended up in the cylinder probably via a port. Thankfully it was a half mile from my home and I was going to take it to work the next day.

So I need a new cylinder and piston. Does anyone know where to get them sent to Connecticut, USA ?

I may have small piece or two in the what seems like sealed crank case but I doubt they will can any major issues.

I may be able to salvage the head as it just has a few beads of molten metal fused to it.

Thanks
2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

Stig / Major Tom

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 14693
  • Rural Ohio
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #1 on: June 18, 2018, 07:54:34 PM »
Kymcopartsmonster.com is one.

Stig
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

Chris0381

  • Hero Member
  • *****
  • Posts: 652
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #2 on: June 18, 2018, 09:05:01 PM »
TY Stig

Any feel of their shipping times ?

Are their parts orderd having to then come from Asia etc ?
2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

Stig / Major Tom

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 14693
  • Rural Ohio
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #3 on: June 18, 2018, 09:58:22 PM »
TY Stig

Any feel of their shipping times ?

Are their parts orderd having to then come from Asia etc ?
They have a guy who answers the phone questions.
Might try him.
They're not the only Kymco parts sellers - but they are the one I've used several times with good results.
Stig
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

Chris0381

  • Hero Member
  • *****
  • Posts: 652
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #4 on: June 27, 2018, 06:00:58 PM »
Keeping my fingers crossed. Put in the SSP-G kit and it started right up. Exhaust gasket didn't fit over male end of exhaust muffler ID too small but fit snuggly into female exhaust port but used it anyway as it it pressing up snuggly against the gasket and sounds OK..

Will have to break it in slowly and maybe detune it a bit with heavier weights to decrease RPM's and stress on connecting rod.
« Last Edit: June 27, 2018, 06:04:16 PM by Chris0381 »
2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

CROSSBOLT

  • Hero Member
  • *****
  • Posts: 7764
  • West Tennessee, USA
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #5 on: June 27, 2018, 09:40:45 PM »
A small piece or two of WHAT in the crank case? Whatever YOU THINK you have in the crankcase you best REMOVE or it will definitely get into something it should not. Murphy's Law: It will if it can especially if it ain't supposed to.
Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

Chris0381

  • Hero Member
  • *****
  • Posts: 652
    • View Profile
Re: Blew a Piston and cylinder :(
« Reply #6 on: June 28, 2018, 09:37:35 AM »
A small piece or two of what was left of the needle bearing casing. Those tiny pieces stopped the crank from turning over by hand. Spent hours removing them.
« Last Edit: June 28, 2018, 11:43:20 AM by Chris0381 »
2013 Super 8 50cc 2T Air Cooled Mfg'd 2012
Stock pipe derestriction
Smooth Boss
6.5gm Dr Pulley sliders
Malossi Torsion Controller
Malossi Fly Clutch- yellow springs
Polini Variator
#95 Main Jet
Purple Malossi Contra Spring
42 MPH on the flats with the wind

An Error Has Occurred!

Call to undefined function split()