Won't start and has black fuel in exhaust pipe...

[dinkyguitar]

sandblaster,

The compression test is with the throttle wide open....but the bike is on the ground with me kicking as opposed to the bike being on a stand.

motopunk,

I'll get the jets you recommended...50 pilot, 360 main....I have nothing to lose

And BTW I'd be happy to visit you....most of my family is in Poland just next door

Foxx4Beaver,

I tried a pressure test but I just couldn't get the intake boot side to seal. However, when I put in 6psi it dropped 1psi in a little over a minute due to me not being able to seal the intake properly.

dinky,

[sandblaster]

Any time, just let me know ahead of time so I can make room on my bench 

[motopunk]

sandblaster,

The compression test is with the throttle wide open....but the bike is on the ground with me kicking as opposed to the bike being on a stand.

motopunk,

I'll get the jets you recommended...50 pilot, 360 main....I have nothing to lose

And BTW I'd be happy to visit you....most of my family is in Poland just next door

Foxx4Beaver,

I tried a pressure test but I just couldn't get the intake boot side to seal. However, when I put in 6psi it dropped 1psi in a little over a minute due to me not being able to seal the intake properly.

dinky,

poland is just an hour away from me ...  next polish citys are stettin (sczezcin) and chojna... where is your family located?

[dinkyguitar]

sandblaster,

The compression test is with the throttle wide open....but the bike is on the ground with me kicking as opposed to the bike being on a stand.

motopunk,

I'll get the jets you recommended...50 pilot, 360 main....I have nothing to lose

And BTW I'd be happy to visit you....most of my family is in Poland just next door

Foxx4Beaver,

I tried a pressure test but I just couldn't get the intake boot side to seal. However, when I put in 6psi it dropped 1psi in a little over a minute due to me not being able to seal the intake properly.

dinky,

poland is just an hour away from me ...  next polish citys are stettin (sczezcin) and chojna... where is your family located?

I was born in the states...but my mother's side is from a small town near Krakow...little rock when translated to English...

I ordered those jets you suggested today..Tuesday next week will be the moment of truth 

dinky,

[motopunk]

sandblaster,

The compression test is with the throttle wide open....but the bike is on the ground with me kicking as opposed to the bike being on a stand.

motopunk,

I'll get the jets you recommended...50 pilot, 360 main....I have nothing to lose

And BTW I'd be happy to visit you....most of my family is in Poland just next door

Foxx4Beaver,

I tried a pressure test but I just couldn't get the intake boot side to seal. However, when I put in 6psi it dropped 1psi in a little over a minute due to me not being able to seal the intake properly.

dinky,

poland is just an hour away from me ...  next polish citys are stettin (sczezcin) and chojna... where is your family located?

I was born in the states...but my mother's side is from a small town near Krakow...little rock when translated to English...

I ordered those jets you suggested today..Tuesday next week will be the moment of truth 

dinky,

 

german name is krakau... definitely more than 3 hours away from me..   

ok, let me know next week, how it works...

[dinkyguitar]

OK...I'm hoping jetting is the issue...

dinky,

[dinkyguitar]

Installed the jets, tried to start it, but no go...

Still the same thing....nothing...1 little backfire and me kicking it but not starting.

I think I'm done with this bike for a while......maybe next year.

dinky,

[Foxx4Beaver]

I was also entertaining the idea of buying a new Mikuni VM38....I've always had a feeling about my current carb....just something about it.

I'd like to know more about this "feeling" you have about your carb...something doesn't sound right there

[dinkyguitar]

I'm venting a little because I'm pissed it's not running and I might need to dump more money I don't really have..

Anyway, the engine has about an hour since I rebuilt everything.

When I get my head clear and think reasonable, I'll see if I can get the pressure test done again.

And that feeling about the carb is because it's the only thing I didn't replace.

dinky,

[Foxx4Beaver]

I'll tell you a quick story...
last year at this time, I was about $6500 into my rebuild on my '95 500...I had replaced just about everything, because I wanted it to be as new as possible. The carb was the original one, and it was sacked out, played out, just straight up sloppy loose. I had replaced the seat 4 times in it, and replaced several OEM float valves, and it was never right...it was just too worn out.
Last December, once I got it fired up for the 1st heat cycle, it was pouring fuel out of the overflow tubes after I shut it off. The 2nd heat cycle, it was pouring out of the overflow tubes whilst it was running!!.
So at that point, I was so disgusted with playing with a junk carb, I said, "at this point what's another $300", and bought a complete brand new Keihin from Sudco.
Since then, I've never had any problems what so ever.

[Foxx4Beaver]

I'm not saying go out and buy a new carb and all your problems will be solved, that's why I'm saying do a leak down test...it's free, and can eliminate a lot of potential headaches.

Do you, or a buddy have another carb you can try, even if it's just for a few minutes to see if it'll start and run better?...even if one of your buddies pulls their carb off their own bike for you to try.

[bens87braap]

I was just going to say that I pulled the carb from my 250 just to test the 125 it started 2nd kick wasnt the same carby but it sealed up and told me that the problem was the carb.  I no u put alot of time into the rebuild hope u get it sorted out

[dinkyguitar]

OK so something magical just happened....maybe divine intervention...

I put the bike up on the stand (something I never do when I try to start it) climbed up on the bike, gas on, choke on, felt the kick starter and put the piston at TDC raised the kick starter....kicked it solid and she started right up   1st kick (double   )

She has NEVER started 1st kick....

Moved the bike off the stand and out the garage since the fumes were killing me.

Let her run about 10 minutes or so...blurping the throttle (neighbors must have loved me at 8pm).

Messed with the idle and air screw and got a smooth idle. Not sure if a dirt bike should have a lumpy or smooth idle.

Yeah, the idle went up and down a few times...but hey it started....

Not sure what to do now  . Maybe I wasn't kicking it hard enough trying to start it??

I usually find TDC on the kick starter and kick from there...the lever is 1/2 way down at that point.

Usually when I find TDC and bring the lever up, I can kick it but 1/2 down the lever stops on me like I don't have enough power in my leg to follow through...

I'm scratching my head and wondering if it was my wimpy kicking that prevented it from starting.

dinky,

[Foxx4Beaver]

still, do a leak down test if the idle is fluctuating!...that could be an air leak, and it could fry your fresh motor!

my '83 CR125 was the same way 30 years ago...gas on, choke on, don't even touch the throttle, kick from TDC, and it would lite right off.

once it's fully broken in, then you can do some plug chops to get a better idea how the jetting is...providing it passes the leak down test.

[bens87braap]

I would also suggest finding somewhere u can ride the bike pull through the gears,  Putting around in the backyard wont do much i wouldnt think but hey Im new to this also