|
|
Post by Elektrey on Oct 7, 2014 13:55:24 GMT -5
Well I actually went for a pretty long ride today, first time in traffic and not just back roads.
It was fast off the line up to about 40mph and then it would slowly climb to 45-46mph sometimes going over/under by 1-2mph.
Up hills it did great, hardly dropped speed. Taking off from stop is still weird because of the later engagement of the clutch. the Timing for letting my feet up and going forward is always a little off. Was at a stop light with cars turning right so I had to pull up every 10 seconds or so, man was that a pain; this thing only wants to take off from a stop, had to be careful with throttle.
It seemed ALMOST fast enough to keep up with cars but what do I know because in my car I usually drive pretty fast.
If I had like 10mph more that would be perfect. So far the only upgrades I've seen for top speed are pretty pricey. I believe it was a 70cc kit for $90 shipped and a technigas next r for $180 shipped.
Is there any way I can get a few more mph out of it without spending that much? I know the belt is riding as high as it can go; I get 46mph at 7600rpm. There's also not a whole lot of parts specifically for the r50x on this side of the pond either; Maybe some parts will fit it but not sure which.
As far as what other people have posted for the same scoot it varies. Some guy said he derestricted and got it to 80km/hr (52mph) and others I have read closer to 40-45mph. I'd like to believe that it's capable of that 80km/hr and there is just one little thing off with mine holding me back, but I'm not sure.
It was down to near E after I came back so I filled it up with the gas that I had. I mixed that gas with the AMSoil @ 48:1. The other was mixed 32:1 so Maybe the little bit extra gas will increase performance some? not sure.
|
|
|
|
Post by niz76 on Oct 7, 2014 14:11:15 GMT -5
Seems like you've got it in tune pretty well and are at the same spot I was: getting the most possible out of 49cc. Time for a pipe and BBK my friend! Actually you could do just the pipe first and that will get you some more speed (RPM's) at 49cc and do the BBK later. Nothing like getting "on the pipe" to wake up a scoot!
|
|
|
|
Post by 90GTVert on Oct 7, 2014 14:27:37 GMT -5
I'm not sure where those engines make power, but there may be more in it with more revs from slightly lighter rollers. With a stock exhaust and stock cylinder it prob won't wanna run more than 8000-8500RPM.
There are always things like porting, changing compression and squish, and adjusting the timing.
$90 is pretty cheap for a BBK if it's a decent one with a head.
A lot of that stuff will or can require tuning the carb again and possibly tuning the CVT as well.
|
|
|
|
Post by niz76 on Oct 7, 2014 14:43:40 GMT -5
^^^ Yah what Brent said hehe. that reminds me- one thing I still haven't tried is adjusting my timing- back to the Tech section I go...
|
|
|
|
Post by Elektrey on Oct 7, 2014 18:40:21 GMT -5
I'm not sure where those engines make power, but there may be more in it with more revs from slightly lighter rollers. With a stock exhaust and stock cylinder it prob won't wanna run more than 8000-8500RPM. There are always things like porting, changing compression and squish, and adjusting the timing. $90 is pretty cheap for a BBK if it's a decent one with a head. A lot of that stuff will or can require tuning the carb again and possibly tuning the CVT as well. Yeah I was thinking about the rollers. It shifts around 7000-7500 so maybe there is more power beyond that and it is getting stuck there. And yes there are engine mods I could do, not sure if I want to remove the engine and work on it, or if I have enough room to do that right now, but I may resort to that. The kit I found was a naraku and I don't think it had a head. Was imported. At 8500 RPM that would be 50mph indicated so that'd be fine by me if I could get it stock. It just needs a little more top end for me to be comfortable riding it places. I know I could spend $200+ on a BBK and Pipe and easily get that but I don't want to unless I have to. Oh and Brent I was looking at one of your vids one day and it showed a performance comparison with different oil premix ratios and I keep trying to find it, but I can't find it. Do you happen to know which video it was? |
|
|
|
Post by jhobe6678 on Oct 7, 2014 18:43:59 GMT -5
Returned the 2 stroke oil I got to walmart and went back to ace because unbelievably they sell AMSoil Saber Professional for $11.99 a quart. Now I have a quart of that. Also picked up a small 4 oz measuring cup for pre-mixing. And realized that ace also has tygon fuel line for $1.75 when I got mine for $2.25 at NAPA. =p I really need to make a trip to ACE. I just wish the one by me didn't friggin close so damn early. |
|
|
|
Post by jhobe6678 on Oct 7, 2014 18:49:47 GMT -5
Well I actually went for a pretty long ride today, first time in traffic and not just back roads. It was fast off the line up to about 40mph and then it would slowly climb to 45-46mph sometimes going over/under by 1-2mph. Up hills it did great, hardly dropped speed. Taking off from stop is still weird because of the later engagement of the clutch. the Timing for letting my feet up and going forward is always a little off. Was at a stop light with cars turning right so I had to pull up every 10 seconds or so, man was that a pain; this thing only wants to take off from a stop, had to be careful with throttle. It seemed ALMOST fast enough to keep up with cars but what do I know because in my car I usually drive pretty fast. If I had like 10mph more that would be perfect. So far the only upgrades I've seen for top speed are pretty pricey. I believe it was a 70cc kit for $90 shipped and a technigas next r for $180 shipped. Is there any way I can get a few more mph out of it without spending that much? I know the belt is riding as high as it can go; I get 46mph at 7600rpm. There's also not a whole lot of parts specifically for the r50x on this side of the pond either; Maybe some parts will fit it but not sure which. As far as what other people have posted for the same scoot it varies. Some guy said he derestricted and got it to 80km/hr (52mph) and others I have read closer to 40-45mph. I'd like to believe that it's capable of that 80km/hr and there is just one little thing off with mine holding me back, but I'm not sure. It was down to near E after I came back so I filled it up with the gas that I had. I mixed that gas with the AMSoil @ 48:1. The other was mixed 32:1 so Maybe the little bit extra gas will increase performance some? not sure. I'd love to get this stock with my Baccio. But between it being a big frame scoot and me being a 240lb rider, I'm not holding my breath. I'd be happy for 45 top as it is really, though I've seen it get close when I first got it. Well that was after I put the kevlar belt on. Now I have the vari and clutch springs to contend with first. Dave already threatened me about putting a BBK and pip on yet, wait and see how it is now... I don't want to wait! lol. I also am scared to do that engine work myself.  I think i'm going to take the 4t to a shop and let them put the BBK on it. |
|
|
|
Post by 2TDave on Oct 7, 2014 19:58:40 GMT -5
You can put a bbk on it. I just wanted the bugs out of it before you started modding. Go for it. There's a used Leo Vince Zx for sale on here.
|
|
|
|
Post by jhobe6678 on Oct 7, 2014 20:13:48 GMT -5
You can put a bbk on it. I just wanted the bugs out of it before you started modding. Go for it. There's a used Leo Vince Zx for sale on here. I saw the Leo, I'll pass. I'd rather buy new. The BBK will be down the road though. I'm following yours and others advice. One step at a time and learn how to tune it first.  |
|
|
|
Post by Elektrey on Oct 7, 2014 20:48:44 GMT -5
Yeah think I'll go with a pipe first.
I could do light rollers like Brent suggested but I don't think there's any more power in the rpms. I noticed if I go downhill it will get to like 50 mph tops but it always will return back to 46ish so I know thats probably where the peak HP is.
Question about the pipe: How do I know what will fit? I mean I've seen the specifically for r50x version but can others work as well?
I imagine the exhaust mount has to work with the morini engine, and I've heard that the rear disc gets in the way of some of the pipes. The only thing left I can think of is getting the mounts to match up. Are those universal?
Aren't pipes just shaped metal welded together? Seems kind of silly to pay so much for it.
|
|
|
|
Post by 90GTVert on Oct 7, 2014 21:15:34 GMT -5
Oh and Brent I was looking at one of your vids one day and it showed a performance comparison with different oil premix ratios and I keep trying to find it, but I can't find it. Do you happen to know which video it was? I never did a vid, but I did some pics and notes using different oils. Don't plan on finding more power by using less oil. There's a link to an article by Gordon Jennings below as well that may be of interest. 49ccscoot.proboards.com/thread/4871/stroke-oil-comparisonwww.bridgestonemotorcycle.com/documents/oilpremix6.pdfAren't pipes just shaped metal welded together? Seems kind of silly to pay so much for it. There's a lot that goes into it. On a 4T where most of the time it's just a big header and a free-flowing muffler, I think they can get pretty overpriced. I'm sure the 2T stuff can be sold much cheaper, like about anything we buy, but tuned pipes are designed to work a certain way. A good pipe doesn't get to be good by luck. Someone at some point designed it and probably built and tested numerous designs to figure out what actually worked. I've never tried it, but I think most people that have tried building their own understand it. |
|
|
|
Post by Elektrey on Oct 7, 2014 21:37:22 GMT -5
Oh and Brent I was looking at one of your vids one day and it showed a performance comparison with different oil premix ratios and I keep trying to find it, but I can't find it. Do you happen to know which video it was? I never did a vid, but I did some pics and notes using different oils. Don't plan on finding more power by using less oil. There's a link to an article by Gordon Jennings below as well that may be of interest. 49ccscoot.proboards.com/thread/4871/stroke-oil-comparisonwww.bridgestonemotorcycle.com/documents/oilpremix6.pdfAren't pipes just shaped metal welded together? Seems kind of silly to pay so much for it. There's a lot that goes into it. On a 4T where most of the time it's just a big header and a free-flowing muffler, I think they can get pretty overpriced. I'm sure the 2T stuff can be sold much cheaper, like about anything we buy, but tuned pipes are designed to work a certain way. A good pipe doesn't get to be good by luck. Someone at some point designed it and probably built and tested numerous designs to figure out what actually worked. I've never tried it, but I think most people that have tried building their own understand it. Ok thanks. I could have sworn it was on one of your videos where you did different runs and I remember on the screen each time showed a different ratio like 32:1 40:1 50:1. Not sure what it was testing but I remember that. |
|
|
|
Post by 90GTVert on Oct 7, 2014 21:46:30 GMT -5
Sure it wasn't ignition timing? Would have been in degrees and not ratio like oil. 13, 16, 20, etc... degrees of advance.
|
|
|
|
Post by Elektrey on Oct 7, 2014 22:00:45 GMT -5
Sure it wasn't ignition timing? Would have been in degrees and not ratio like oil. 13, 16, 20, etc... degrees of advance. I remember 32:1 I think, so pretty sure it was oil. If you don't remember it though then I guess I remembered it wrong must have been some other ratio. |
|
|
|
Post by jhobe6678 on Oct 8, 2014 4:33:40 GMT -5
Sure it wasn't ignition timing? Would have been in degrees and not ratio like oil. 13, 16, 20, etc... degrees of advance. I remember 32:1 I think, so pretty sure it was oil. If you don't remember it though then I guess I remembered it wrong must have been some other ratio. Yeah, I see different ratios too. Not sure what the purpose was, maybe to compensate how each one flows through the jet? Viscosity difference perhaps? |
|
