• Welcome to 2 STROKE WORLD .net.
 

News:

MSRs 78 400 , My hybrid and a random German tractor






Main Menu

killed the CT125 /143 piston

Started by m in sc, September 15, 2024, 12:55:21 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

m in sc

classic 4 pt seizure on the 143 big bore kit. i think i maxxed out the duty cycle since I was wide open for ... 20-25 mins or so, air was cooler and a bit denser that morning.. and then this. didn't stick rings but it collapsed the skirt pretty good. rode it home, and decided to go to a bigger setup, 164cc, & a larger injector (about 185cc/,in rating vs the 140 of the old one). Rode bike home anyway. new cyl/piston/2 (diff size) injectors under 200 shipped from webike. New cyl also has oil cooler ports so getting one of those as well.  :devil: I probably have close to 3k miles on this setup as i ride it a LOT, so, whatever. lol.


SoCal250

Ouch
I'm seeing a long term pattern here. You're rough on equipment! :haw:
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

msr

I love remembering that time when you said you were keeping this one stock.  :devil:

m in sc

Quote from: SoCal250 on September 15, 2024, 05:45:29 PMOuch
I'm seeing a long term pattern here. You're rough on equipment! :haw:
not abusive person just... spirited   :whistle:

SoCal250

Quote from: m in sc on September 15, 2024, 09:03:25 PM
Quote from: SoCal250 on September 15, 2024, 05:45:29 PMOuch
I'm seeing a long term pattern here. You're rough on equipment! :haw:
not abusive person just... spirited  :whistle:
Welcome to the Haase Proving Grounds! :celebrate:
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)