I don’t know what they use but their needles are a work of art. Absolutely amazing quality.
250 The 1999 YZ250
- Thread starter Trfsrfr
- Start date
I don’t know what they use but their needles are a work of art. Absolutely amazing quality.
I’ve never seen needles this high in quality. They really are amazing. I looked for part numbers but there are none so I don’t know if they machine them there or not
Is it even worth trying to tune this thing in my garage in middle suburbia? I just took around the asphalt block after the recent float level rise and the MJ drop, and it's now sputtering before I get to 1/2 throttle.
Am I going to need to tune this thing at the track?
I remember all this crap from a year and a half ago, then parking it when I got the WR400. This shit is still unresolved.
Am I going to need to tune this thing at the track?
I remember all this crap from a year and a half ago, then parking it when I got the WR400. This shit is still unresolved.
So the fuel leak from the float bowl has got me thinking this could be my whole problem, and would explain a lot. Not sure If I want to be right about about this, cuz I'm not sure I can fix it.
The float needle is new, and I dont think I can replace the seat because there is no part listed for it on the parts fiche...
It would also explain why so many other accounts I have read about it recently say this carb is junk.
So here is my test;
I folded a business card in half and clamped it to the float bowl gasket surface, holding the float up, and then hung it under the tank, now gonna go check it a couple few hours and see if it's leaking; see pics below;
The float needle is new, and I dont think I can replace the seat because there is no part listed for it on the parts fiche...
It would also explain why so many other accounts I have read about it recently say this carb is junk.
So here is my test;
I folded a business card in half and clamped it to the float bowl gasket surface, holding the float up, and then hung it under the tank, now gonna go check it a couple few hours and see if it's leaking; see pics below;
Overnight and no leaks whatsoever. Float valve and seat are good.
Going back to the 172 main jet and taking it to the track in the morning. But, just reassembled with the 172 and took it around the asphalt hood, and it doesn't feel like it likes it.
This thing has me thinking I should just buy a PWK.
But before I give up, a question;
Carb is exactly stock settings right now.
What do I start tweaking first, the jet needle, or the jet size?
Going back to the 172 main jet and taking it to the track in the morning. But, just reassembled with the 172 and took it around the asphalt hood, and it doesn't feel like it likes it.
This thing has me thinking I should just buy a PWK.
But before I give up, a question;
Carb is exactly stock settings right now.
What do I start tweaking first, the jet needle, or the jet size?
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IT'S ALIVE!!!! Finally!
Early on she seemed a bit sputtery up top so I dropped the MJ to a 170 and it seemed to help. Probably gonna drop it to the 168 next and see what happens. The plug is now dark, but not sooty, after a few hot laps and a plug chop. Running Yamalube today though.
Gonna take the 52 rear sprocket off tonight and put on a 49, along with a new Dunlop Geomax 33, and a chain.
Fuck this thing is fast. I could barely keep the rear tire behind me. A buddy stopped by and said that maybe that was because my sag was wrong. Hopefully the smaller sprocket and new tire will help.
Do you guys bottom your forks when you case a landing, or am I too heavy (185 lbs)???
Early on she seemed a bit sputtery up top so I dropped the MJ to a 170 and it seemed to help. Probably gonna drop it to the 168 next and see what happens. The plug is now dark, but not sooty, after a few hot laps and a plug chop. Running Yamalube today though.
Gonna take the 52 rear sprocket off tonight and put on a 49, along with a new Dunlop Geomax 33, and a chain.
Fuck this thing is fast. I could barely keep the rear tire behind me. A buddy stopped by and said that maybe that was because my sag was wrong. Hopefully the smaller sprocket and new tire will help.
Do you guys bottom your forks when you case a landing, or am I too heavy (185 lbs)???