KC_BigDog_51
Member
- Mar 25, 2001
- 262
- 0
I bought the bike in March of this year and it was completely stock upon purchase with the exception of a new piston and ring. Shortly after purchse I installed an FMF Fatty pipe and FMF Shorty Silencer, FMF Power Reeds. After installing these it started running rich and bogging down low but made huge improvements on top. I switched the pilot jet from a STD #45 down to a #40 and moved the neddle clip from the middle position to the 2nd from the top position.
Yseterday was the first ride with the new carb setup and it ran awesome for the first trip out on the track. Our second trip out I was play racing with my brother-in-law and we were pushing it pretty hard and on the second lap when I was going over a big up hill double I gave it a little panic rev to keep the front end up it kind of sputtered while in the air. I took it easy for the next few sections and then it died while going around a turn to a downhill but when I rolled down the hill it fired back up and then just kept cutting in and out till I made it back to the parking lot. Once there I could not restart it.
I cleaned the filter on Saturday for the first time since purchasing a new one a month ago in preperation for our ride on Sunday. I was pretty sparse with the filter oil when I put it on the first time so there was a lot of loose dirt. After taking the carb off there was quite a bit of dirt in the air boot and on the air box side of the carb. So I removed all the jets and used a whole can of carb cleaner and after reassembeling everything it still would not start.
I started to get woried that I had leaned the jetting out too much and fried the piston so I took the cylinder head off and there are no grooves in the cylinder walls or pits on the roof of the head. The only thing I saw weird was there is a little blow by on the front side of the cylinder and with as much riding we have put in this summer I am probably due for at least a new ring and it must have just recently started because it wiped off with no effort what so ever.
So, what do you guys think?
Do I need to give the carb another cleaning?
Do I go ahead and order a new ring and see if that helps?
Or, (Last resort) let a local dealer mess with it and pay through the nose to trouble shoot it for me?
I was planning on sending the motor to Eric Gorr this winter and having a big bore kit done but with DirtWeek just around the corner I can't aford to do both and I would hate to put a new piston and ring on to only get a few rides in before I spend the big bucks and have Eric do his magic to it this winter.
Thanks for the help in Advance!!
Yseterday was the first ride with the new carb setup and it ran awesome for the first trip out on the track. Our second trip out I was play racing with my brother-in-law and we were pushing it pretty hard and on the second lap when I was going over a big up hill double I gave it a little panic rev to keep the front end up it kind of sputtered while in the air. I took it easy for the next few sections and then it died while going around a turn to a downhill but when I rolled down the hill it fired back up and then just kept cutting in and out till I made it back to the parking lot. Once there I could not restart it.
I cleaned the filter on Saturday for the first time since purchasing a new one a month ago in preperation for our ride on Sunday. I was pretty sparse with the filter oil when I put it on the first time so there was a lot of loose dirt. After taking the carb off there was quite a bit of dirt in the air boot and on the air box side of the carb. So I removed all the jets and used a whole can of carb cleaner and after reassembeling everything it still would not start.
I started to get woried that I had leaned the jetting out too much and fried the piston so I took the cylinder head off and there are no grooves in the cylinder walls or pits on the roof of the head. The only thing I saw weird was there is a little blow by on the front side of the cylinder and with as much riding we have put in this summer I am probably due for at least a new ring and it must have just recently started because it wiped off with no effort what so ever.
So, what do you guys think?
Do I need to give the carb another cleaning?
Do I go ahead and order a new ring and see if that helps?
Or, (Last resort) let a local dealer mess with it and pay through the nose to trouble shoot it for me?
I was planning on sending the motor to Eric Gorr this winter and having a big bore kit done but with DirtWeek just around the corner I can't aford to do both and I would hate to put a new piston and ring on to only get a few rides in before I spend the big bucks and have Eric do his magic to it this winter.
Thanks for the help in Advance!!
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