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Post by 2stroked on Apr 18, 2014 8:31:09 GMT -5
Umm....I was under the impression that we were talking about a two stroke engine. If thats the case, jetting is different, and there wont be a diaphram in the carb. I think we are narrowing down on the issue though. If I was right in assuming it is indeed a 2t, then it sounds like a leak in combo with jetting issues. Andrikink, is it a 2 or a 4 stroke? And, did u have any luck checking for leaks?
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Post by andrikink on Apr 18, 2014 9:27:25 GMT -5
Yes its 2stroke engine. Havent got home yet, i was at my grandparents, ill try when i get home, about couple of hours
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Post by andrikink on Apr 18, 2014 10:04:45 GMT -5
but dont know how much was the stock pilot jet, because i bought the carb second-hand, and it came with used aftermarket filter, the opened one (cone shape, like on pitbikes). got so much to do today beside scooter, donw know if have much time to deal with scooter today, but i will try the leaking test, its easy and not very time consuming to do
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Post by 2TDave on Apr 18, 2014 10:30:20 GMT -5
Dellorto 19mm with a Malossi sport cylinder. I'd say 2t.
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Post by 2stroked on Apr 18, 2014 10:34:17 GMT -5
Are the jets from your old carb interchangeable? I.e. could u just swap the pilot jet. If I remember right, the pilot jets job is performed at idle up to, but not above 1/4 throttle. It shod have no effect on performance other than idle. Dave, thats what I thought too. Same reasons too. Am I right about the pilot jet?
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Post by 2TDave on Apr 18, 2014 11:29:30 GMT -5
Yep the pilot is idle to 1/4 or so. I doubt they'd swap. I ordered some from treatland but that is a fine tuning thing and shouldn't have an effect.
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Post by andrikink on Apr 18, 2014 12:46:16 GMT -5
so just got back from tuning. i put needle clip to second position from top. so tested out and was absolutely better than before, when clip was all the way up, i didnt tried top end but shooting off from dead stop was amazing, on gravel it was always spinning the wheel, could get better but i think thats okay for now because i would not ride with it longer than couple of months, then i will get car driving licenses or one day i will exchange for another two wheeler, maybe even supermoto/ enduro
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Post by 2stroked on Apr 18, 2014 13:14:07 GMT -5
So, better, huh? Great. Glad we helped you get back on two wheels. You would be amazed at how fast youcan make these little engines turn. Glad ya got a good takeoff. Hope it stays strong
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Post by andrikink on Apr 18, 2014 15:14:59 GMT -5
no the best what i expected but i think i might put some lighter weights in, because ATM i got soft contra spring and heavy weights, might get even better takeoff. now got back from little trip with my scooter, i tried top end aswell, with WOT i sputters a little bit but when rpms still climb a little bit it speeds up and sputtering eventually goes away, when rpms are quite high and speed is high too. when before i got with WOT about 80 km/h, then now it climbs to about 100km/h and even over, so im very glad that you helped me with everything, every response was helpful and many thanks maybe trying other things too, maybe trying needle clip one more step too (richen up a little bit ). i will let you know!
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Post by 2stroked on Apr 18, 2014 15:47:12 GMT -5
I am happy to help. What wieght clutch spring do you have? Heavier c springs, and a little lighter rollers will probably slingshot ya' ! Go ahead and set the needle a clip higher, it may even help the stutter. Oh, my scoot did the sputter thing once, I had an exhaust leak that was causing it. On take off it was a rocket, about 3/4 throttle it would sputtet, then revs would slowly climb.
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Post by 2TDave on Apr 18, 2014 15:53:10 GMT -5
Sounds like your getting close. Do some plug chops and let us know what they look like. It shouldn't spudder. Don't change the weights until the carb is dialed in! I suspect dropping the clip a notch and going with the 89 with the holes covered then do some runs uncovering the holes one at a time if the plug is still rich drop to the 87 and repeat.
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Post by 2stroked on Apr 18, 2014 16:13:24 GMT -5
Sounds like your getting close. Do some plug chops and let us know what they look like. It shouldn't spudder. Don't change the weights until the carb is dialed in! I suspect dropping the clip a notch and going with the 89 with the holes covered then do some runs uncovering the holes one at a time if the plug is still rich drop to the 87 and repeat. What he said. Plus, the ex. thing. One performance issue at a time. That way you know what is causing what. You cant just jump into tuning head first. One thing at a time. I should have caaught that. Thanks Dave.
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Post by 2TDave on Apr 18, 2014 17:48:26 GMT -5
No worries. Just trying to help people by letting them learn from my many mistakes. Here's another one, when and if you decide sometime in your early twenties to go to Panama City for spring break and a cop tells you not to be drinking on the street, I'd advise going back to the beach. While I haven't been in my twenties for a bit I do remember the long walk back to the Barney Gray from the poky the next morning. Have fun and be safe young Jedi. ;-)
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Post by 2stroked on Apr 18, 2014 18:49:39 GMT -5
No worries. Just trying to help people by letting them learn from my many mistakes. Here's another one, when and if you decide sometime in your early twenties to go to Panama City for spring break and a cop tells you not to be drinking on the street, I'd advise going back to the beach. While I haven't been in my twenties for a bit I do remember the long walk back to the Barney Gray from the poky the next morning. Have fun and be safe young Jedi. ;-) Same here Dave, a decade out of my twenties. It does help ones self just to help or guide others. Keep us posted andrikink
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Post by andrikink on Apr 19, 2014 12:56:20 GMT -5
So i discovered some real deal, i have switch dor my lights, when its on position and lights are shining then if im riding with high speed and high rpms then it sputters, when switching to off position then no real sputter, only sputters because of faulty carb tuning i guess maybe draging another mass netween engine and frame? Thank you!
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