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Post by katt on Jan 30, 2019 8:48:34 GMT -5
I would question is if Marx and Eng els we're really that far off base. You think if they designed scooters they would do a better job than Yamaha i mean why in the world right mirror was threaded backwards.
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Post by katt on Jan 29, 2019 20:20:17 GMT -5
Right side mirror was threaded counter-clockwise for some reason, tried to loosen it to adjust and broken the switch rear panel, got to order the replacement switch as my donor bike has it cracked as well.
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Post by katt on Jan 29, 2019 20:15:20 GMT -5
I put idle at 2400 RPM and seems much better now.
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Post by katt on Jan 29, 2019 19:59:40 GMT -5
Currently have Keihin #105 installed and seems to be faster accelerating, but according to table stock was Keihin #108 so i actually leaned it out a bit.
I also used whole different carb from donor bike, could be that.
Anyway what size would you suggest to use for improved performance, about to receive new air filter and it will let even more air in, i thinking keihin #115?
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Post by katt on Jan 28, 2019 8:21:07 GMT -5
Unless your turning 10k rpm or higher for long extended periods, there is no point for balancing other than to satisfy your OCD. I was under impression you mentioned this as reason for vibrations on idle speed,
what else i can balance in the engine to reduce idle vibration?
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Post by katt on Jan 28, 2019 8:19:30 GMT -5
the jet is so small so Yamaha can be in epa compliance. I put a pipe on one of these vinos and it came with a jet a variator and an exhaust pipe. I believe the new jet was 110-115? it was a year ago so its kinda fuzzy. that package woke that scooter up!! like night and day. ill ask my customer what manufacture it was so we can figure out the jet number was exactly. I remember it being like a 10-15# different. I wasn't sure how it was gonna work with that big of a jump in jetting. it actually got out of its own way. as before it wasn't very exciting. This sounds interesting i used 105 jet at moment.
My point with the jet to avoid leaning it out i want to be on the safe side, i know sooth from too rich could clog the catalytic converter, but if i monitor spark plug it should be able to find a proper mixture.
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Post by katt on Jan 28, 2019 8:06:12 GMT -5
Okay i see you want to make me a forum fool its not cool.
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Post by katt on Jan 28, 2019 8:03:57 GMT -5
The starter clutch could be dirty. But be warned, there are springs and rollers that can fall out when you remove it and clean it.. Remember to talk softly, it can hear every word you say. Who knows who is listening. i cleaned it when i rebuild the engine.
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Post by katt on Jan 28, 2019 8:01:58 GMT -5
This shows how much your entire system draws not how much your stator output.
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Post by katt on Jan 27, 2019 10:17:03 GMT -5
The gps tracker in the flywheel is throwing things off. LOL Vibration where ? From the engine or when you rev it up and the tire spins too ? These engines are not balanced and blueprinted.(from the factory) Vibration from engine i guess.
2000rpm vibrates mirrors turn signals in front and back when rpm 2400 its okay.
Balancing crankshaft would help with that?
my idle is bit wired when i fire up cold engine it takes like 5 seconds for it to reach from 1200 rpm to 1800rpm.
not sure why choke does not add up RPM, last time i adjusted idle with choke closed, so with open choke it should start at about 2400RPM. Instead its hardly reach 1800 RPM.
I assume its old dirty air filter ordered replacement waiting now.
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Post by katt on Jan 26, 2019 15:13:41 GMT -5
Got vibrations on idle 2000rpm vibrates 2500 okay any ideas?
Manual calls for about 1800rpm.
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Post by katt on Jan 26, 2019 13:07:51 GMT -5
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Post by katt on Jan 26, 2019 13:03:23 GMT -5
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Post by katt on Jan 26, 2019 13:02:03 GMT -5
Lol or even better take muffler off and ride like that couple days . Another way to make stock sound it louder is use zero resistance air filter.
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Post by katt on Jan 26, 2019 7:21:09 GMT -5
That's great response man. Thank you. The biggest issue now is that I totally screwed up the header pipe that's just gone now. I have the muffler still and would mount it to my facotry header pipe which is all black. But the thing is, the end of the pipe has a bigger flange because the stock muffler is 4" and the aftermarket one is 3.5". Not sure how I can just bolt that one on there. The holes to bolt on the muffler are more closer then the factory pipe. Take off the pipe and make cardboard stencil for muffler holes meaning mark the holes exact location and distance then apply stencil to stock pipe and mark new holes location, drill new holes into stock pipe.
If its brand new scooter why you even want to change pipe it did not difference in performance for me.
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