RideRed400StYlE
08-01-2003, 03:48 PM
alright. I have posted about this before with some good replies on what this might be. but I have gotten nowhere on the problem. so here it goes again.
I recently turned my 400 into a 426 with a je 13:1 comp piston. new rings and all. after riding for a while I noticed a lot of oil in my airbox. couldnt figure out why so I ran a new hose with a breather on it to keep the oil out of my airbox. went riding again. and the bike is covered in oil coming from the breather. no vent lines are pinched. I thought at first there was too much oil, but I now know that cannot be the case. I took apart my top end and found a scratch in the cylinder wall. so I resleeved rebored new hone new piston and new rings all over again( the first piston was used) anyways. I got it back together and I went down the road to start the breakin process and there is oil all over again. still coming from the same spot. so I checked my oil return line. I took it off and turned the bike over. oil spit right out. the line is not blocked at all either. the only strange thing that I noticed is my oil seems to be really watery like it is breaking down really fast or somthing. this is a new oil to me I never used it untill after the rebuild. it is valvoline 4 stroke atv oil (10w40) the oil smells bad after I use it. and the only thing I can think now is maybe this is a bad oil and it is breaking down really fast getting really watery and getting thrown all over the inside of the motor and right into the breather section. I am going to try another type of oil tomarrow. but if anyone else has any ideas please let me know.
and sorry for the book I just want everyone to know what I tired. there is no way that it is blow by causing this. the rings on the old piston are like brand new. and the new ones are.. well..... brand new
I recently turned my 400 into a 426 with a je 13:1 comp piston. new rings and all. after riding for a while I noticed a lot of oil in my airbox. couldnt figure out why so I ran a new hose with a breather on it to keep the oil out of my airbox. went riding again. and the bike is covered in oil coming from the breather. no vent lines are pinched. I thought at first there was too much oil, but I now know that cannot be the case. I took apart my top end and found a scratch in the cylinder wall. so I resleeved rebored new hone new piston and new rings all over again( the first piston was used) anyways. I got it back together and I went down the road to start the breakin process and there is oil all over again. still coming from the same spot. so I checked my oil return line. I took it off and turned the bike over. oil spit right out. the line is not blocked at all either. the only strange thing that I noticed is my oil seems to be really watery like it is breaking down really fast or somthing. this is a new oil to me I never used it untill after the rebuild. it is valvoline 4 stroke atv oil (10w40) the oil smells bad after I use it. and the only thing I can think now is maybe this is a bad oil and it is breaking down really fast getting really watery and getting thrown all over the inside of the motor and right into the breather section. I am going to try another type of oil tomarrow. but if anyone else has any ideas please let me know.
and sorry for the book I just want everyone to know what I tired. there is no way that it is blow by causing this. the rings on the old piston are like brand new. and the new ones are.. well..... brand new