First off new to the forum but not new to engines
and great sight here ive been snoopin for a couple years and now I need help that I havmt been able to find through searches.
Sorry for the long post just want to cover what ive been through already and here goes!!
I bought about a year and half ago with bad rings. New top end and reeds and she was good to go (kinda). Never really had great bottom end compared to our other blaster but I just contributed that to the taller tires. Well the bottom end just got worse and worse but would still scream on the top if u could get it to open up. I finally broke it down to find a bad crank bearing and seals shot. I put new crank bearings in and new seals. Got it back together only for it to run like poo! It will idle but boggs bad tryin to rev. Its runnin extremely rich, plug is wet everytime I pull it. Check compression and was only 30psi, pulled reeds looked good, pulled the jug and rings where done. Slapped a new set of rings, still same no improvement. It always had a larger main jet in it, put factory main (smaller) in it and no improvement even lowered the needle all the way down. With my spark tester the spark gets prettier as you rev. I hooked my timing light to it to see if maybe the spark was retarding as rpm increased but my freakin light dyed after 3 blinks
When I pulled the jug to do the rings it had oil in the case. So I drained crank case and measured to find I lost about 50 millimeters. So I pulled the case down and checked the crank seal it was fine. Gonna say the 50mill I lost was due to residual and not getting all out. And gonna say the oil in the crankcase was where I filled the galleries with oil so the bearing where lubed on start up. I cant imagine that oil is my problem though it could be. I understand a 2 stroke will pull that oil in open throttle situations but dang shouldn't it have burnt that up by now? It's late and just got off the phone with an old 2 stroke buddy and he recomended making sure no rodents nested in my chamber after I told him I didnt get any change after pulling the can off and Im not getting any cackle from the exhaust. So gona pull the chamber in the mornig and check that. Ill report back with results.
Ready to scrap this dang thing! Anybody got any ideas? Any comments questins or concerns will be appreciated! Thanks, Jay
and great sight here ive been snoopin for a couple years and now I need help that I havmt been able to find through searches. Sorry for the long post just want to cover what ive been through already and here goes!!
I bought about a year and half ago with bad rings. New top end and reeds and she was good to go (kinda). Never really had great bottom end compared to our other blaster but I just contributed that to the taller tires. Well the bottom end just got worse and worse but would still scream on the top if u could get it to open up. I finally broke it down to find a bad crank bearing and seals shot. I put new crank bearings in and new seals. Got it back together only for it to run like poo! It will idle but boggs bad tryin to rev. Its runnin extremely rich, plug is wet everytime I pull it. Check compression and was only 30psi, pulled reeds looked good, pulled the jug and rings where done. Slapped a new set of rings, still same no improvement. It always had a larger main jet in it, put factory main (smaller) in it and no improvement even lowered the needle all the way down. With my spark tester the spark gets prettier as you rev. I hooked my timing light to it to see if maybe the spark was retarding as rpm increased but my freakin light dyed after 3 blinks
When I pulled the jug to do the rings it had oil in the case. So I drained crank case and measured to find I lost about 50 millimeters. So I pulled the case down and checked the crank seal it was fine. Gonna say the 50mill I lost was due to residual and not getting all out. And gonna say the oil in the crankcase was where I filled the galleries with oil so the bearing where lubed on start up. I cant imagine that oil is my problem though it could be. I understand a 2 stroke will pull that oil in open throttle situations but dang shouldn't it have burnt that up by now? It's late and just got off the phone with an old 2 stroke buddy and he recomended making sure no rodents nested in my chamber after I told him I didnt get any change after pulling the can off and Im not getting any cackle from the exhaust. So gona pull the chamber in the mornig and check that. Ill report back with results.
Ready to scrap this dang thing! Anybody got any ideas? Any comments questins or concerns will be appreciated! Thanks, Jay
