The float bowl does have a gasket. I doubt you would need to use any sealer there.
OMG I have to tune a CNS!!! Help
- Thread starter biknut
- Start date
It won't hurt anything to try leaning out the needle. If it runs worse you can always change it back.
I had to run mine in the richest position on the 80 I tuned. It didn't like any other position.
Yeah that's true. One problem I've noticed on the forum is someone says my bike runs like crap what do I do? But most of the time they forget to mention what brand, size, modifications they may have. It makes a big difference.
+1 what Biknut said about plugs...
Way back when I really wanted to run Champion plugs on my dirtbikes, I learned NGK was far superior.
...seems to me that the outer ring of the plug, (the threaded part?), being tan in color, and the center electrode being black, kinda wet, is kinda backwards what you might want to see. It's kind of odd... It would lead one to believe you have too cold a plug, but the cylinder head itself is running hot.
Although, with E-85 fuel, I have been told ALL plugs in an engine should be more to the black side than tan because of how the alcohol burns???
I am not an expert on reading plugs.
Good luck
rc
Way back when I really wanted to run Champion plugs on my dirtbikes, I learned NGK was far superior.
...seems to me that the outer ring of the plug, (the threaded part?), being tan in color, and the center electrode being black, kinda wet, is kinda backwards what you might want to see. It's kind of odd... It would lead one to believe you have too cold a plug, but the cylinder head itself is running hot.
Although, with E-85 fuel, I have been told ALL plugs in an engine should be more to the black side than tan because of how the alcohol burns???
I am not an expert on reading plugs.
Good luck
rc
I checked my plug today before work and it's finally a nice chocolate brown! Last night I took my carb apart and tightened everything down as it all seemed just slightly loose. One kind of scary concern is a while back I put two o-rings in to seal the intake. One fit the i.d. of the intake manifold and another fit the i.d. of the larger o-ring which was the same size as the face of the intake, if that makes sense. ANYWAY, when I removed my carb from the intake and looked inside, I only found ONE o-ring. Could my motor have consumed the smaller o-ring? I can't find it. I haven't had a chance to remove the intake yet, as I'm hoping it's just lodged down in there and hadn't made it in to the engine yet. Either way, it's running better. And I have another little project tonight.
Kind of depends how it's running. Mine ran so bad it would barely do 10 mph, but it would start and idle ok. I had to tune it a little just so I could ride it. Just don't try to get it perfect till after you get off the break in mix.
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Biknut is right, get your bike to run then after the break in you will most likely have it tune the carb. It took about 250 to 300 miles till mine felt stronger, so if you can ride it the way you have it now be it rich or whatever you may be o/k.
Hey droc if you are too rich you may lean it out some with a SBP air filter, I had to drill my main jet to a 68 on a 48cc. before i drilled it I put the stock filter back on and it ran normal. I just like the better filter.
Hey droc if you are too rich you may lean it out some with a SBP air filter, I had to drill my main jet to a 68 on a 48cc. before i drilled it I put the stock filter back on and it ran normal. I just like the better filter.
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ok it runs pretty good now i wudnt say perfect but ridable for now.
thnx guys this is by far the most helpful thread!
thnx guys this is by far the most helpful thread!
I put the carb back on and tightened everything down. All seemed great until I opened the fuel valve to let in some gas. It overflowed the carb and started leaking (pouring) out of every hose and out of the air filter. What's happening?
For some reason your float needle isn't closing. Check that first. It'll be easier if you take the carb off the bike.
Make sure the pointy end of the float needle is going into it's seat.
Clean the float bowl out.
I had this same problem. I believe it's your float needle or float. After mine overflowed and spilled gas on everything, I opened the float bowl and the float needle fell out. I put it back and and everything worked fine.
