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Post by gy6er on Feb 22, 2016 17:25:21 GMT -5
Hello fellow gy6 enthusiast, I just got a new 10 inch wheel 50cc and am waiting on a main jet in mail and I guess bad weather coming up but would like this thread to include some input on what a new scooter with ncy pipe, HP air filter and a 18 carb could do. Unfortunately mine is overjetted to pick up speed for now. Any input on jetting,GPS verified speeds reliability testimonials and anything on different carb suggestions all welcome. Was also wondering what people run 10 40 or 15 40 oil too? I got my eye on PFS 20 mm carb possibly for future but don't think it's a must for top speed. Thanks for  response |
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Post by steve on Feb 23, 2016 10:27:10 GMT -5
They will do 45 mph, if you go down a long enough hill. You can generally expect to cruise around at about 30. The 20mm carb is pretty much a waste of money, unless you are going to put on a big bore kit. With your pipe, and the air filter, an  main should be about perfect. Try an 80, then an , and check the spark plug, and judge the performance as to which one you like better. It's better to be slightly rich, than lean. Being a little on the rich side, which means having a jet slightly too large, will make your engine run cooler, which will help engine life. As for oil, I use 10w-40. |
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Post by steve on Feb 24, 2016 7:51:05 GMT -5
BTW, I don't know where that "blah blah" emoji came from. I did not mean to put it in there. What I meant to say was that an eighty five main jet should be about perfect. Try an 80, and an . If they feel about the same, use the , as it is always better to use a main jet that is slightly too large, than one that is slightly too small. You should be able to comfortably cruise around at about 35, give or take. Some 50cc scoots come with a 44mm piston, instead of the standard 39mm piston. I happened to have that larger piston on one of my first ones, and when I put an eighty five main jet in that thing, it really pepped it up. As far as jetting advice goes; you can tell, for the most part, by how it acts whether you have it jetted properly. I can tell you with confidence that you are going to need somewhere between an 80-  . I think an eighty five will be perfect for you. After you run it for 5 miles, or so, take the spark plug out, and it should be a nice, chocolate brown on the tip. You can do that if you want to, but the only thing you want to make sure of is that you are not running too lean. As long as you are running a #80, or larger, you stand no chance of running too lean, so you can just pick the size that performs the best. If you decide on one larger than an , I would keep some spare spark plugs, and a spark plug wrench under your seat, because running it real rich will foul the plugs quicker than usual.Just remember, rich is good, lean is bad. Err on the side of a larger jet. Hope this helps, Steve I don't know why, but when I type numbers, it inserts that emoji. Every place that I typed eighty five, with numbers, it inserted the "blah blah" emoji. |
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Post by gy6er on Feb 24, 2016 9:48:17 GMT -5
Thanks for reply, no problem about bla bla I did not think much about it. Stupid rain is ticking me off. Got some jets and my new rx 50 Wolf is now soaked trying to tune the little I can but next dry day I will have her purring. Nice bike (midnight blue) and light. Almost like a wolf version of a Taotao atm 50. Pipe kicks off line with all the revs but don't do much up in mid and I have yet to tuck and see her at top speeds yet. Thanks again for advice. I know what to look for but my norm is the 150cc-170cc when it comes to tuning.
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Post by gy6er on Feb 25, 2016 6:17:20 GMT -5
Getting a 20mm,on the way. Could not tune with rich jet needle (non adjustable kind) and I also think seeing as how I could only tune a 70-75 MJ I think my intake manifold is or may be restrictive so got a new stock PFS replacement and gasket just in case. Also was wondering...only the 150cc scoots have the intake spacer right? I'm sure the 50cc only have a gasket that may or may not need replacing. I'm sure if it does have 1 it'll be OK brand new but does anyone know for sure? Thanks- Ride high and fly low!!
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main should be about perfect. Try an 80, then an 
. I think an eighty five