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Post by Lee on Dec 23, 2012 14:49:32 GMT
Well !
A trip to worsall saw an indicated 61 mph !!
We still have some work to do with roller weights, but that's still haulin ass on a moped !
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Hitman
Superbike Rider
Posts: 1,268
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Post by Hitman on Dec 23, 2012 15:57:21 GMT
Think I have just seen it on a drive on our estate...teesside bikers sticker on the plate..  |
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Post by Lee on Dec 23, 2012 16:12:48 GMT
If you live near the golden jubilee, then that's the 'ped, he's over there visiting his bird
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Hitman
Superbike Rider
Posts: 1,268
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Post by Hitman on Dec 23, 2012 17:54:33 GMT
That will be it then...the one up on the back wheel..  |
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titus
Superbike Rider
Fire up the Quattro !
Posts: 2,076
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Post by titus on Dec 23, 2012 17:55:26 GMT
Stick a 70cc kit on it! Not only is it a 60% increase but the port timings and flow is much more efficient. Should see 50-55 mph without a gear up. The average kit costs like £110. It is two stroke isn't it? You mentioned COST that's Lee out, the Tight tw*t !!! |
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Post by Lee on Dec 23, 2012 20:36:51 GMT
Using big bore kits is cheating. The boy got back tonight and told me the bike is hitting 57 mph on the level.
Wind strength affects this. Remember, these things are so low powered, they wouldn't pull a bog seat off. It's about gearing and honing the little power it has into the right areas.
An aftermarket exhaust, jetting and porting, combined with race variators will increase performance without increasing the bikes cubic capacity. But for how much gain ? The bike is a pretty good starter but when you start dicking around with the fuelling, you can lose that. I'm thinking along the line of either...
A. Do nothing, it's arguably quick enough now, or
B. a race variator and possibly a straight thru exhaust.
The latter is a £120-£140 for bits, what do you get in return?
5 mph? 10 mph max ? Admittedly, it may perform a bit better of the mark, but the boy seems really happy with the results as they are.
I'm going to experiment further with roller weight reduction now that the stock drive belt is fitted, see if I can improve acceleration.
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Post by Milky C on Dec 23, 2012 22:00:30 GMT
Using big bore kits is cheating. The boy got back tonight and told me the bike is hitting 57 mph on the level. Wind strength affects this. Remember, these things are so low powered, they wouldn't pull a bog seat off. It's about gearing and honing the little power it has into the right areas. An aftermarket exhaust, jetting and porting, combined with race variators will increase performance without increasing the bikes cubic capacity. But for how much gain ? The bike is a pretty good starter but when you start dicking around with the fuelling, you can lose that. I'm thinking along the line of either... A. Do nothing, it's arguably quick enough now, or B. a race variator and possibly a straight thru exhaust. The latter is a £120-£140 for bits, what do you get in return? 5 mph? 10 mph max ? Admittedly, it may perform a bit better of the mark, but the boy seems really happy with the results as they are. I'm going to experiment further with roller weight reduction now that the stock drive belt is fitted, see if I can improve acceleration. You wont get 10mph out the exhaust, 5 would be pushing it |
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Post by Lee on Dec 24, 2012 8:08:46 GMT
The current 57 on the flat is likely to become 60 mph on the flat if a sports exhaust is brought into the equasion. I'm in two minds about a race variator, I'm of the opinion that my modified set up is gonna be just as good. Hmmm
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Post by Retired rigworker on Dec 24, 2012 10:46:35 GMT
The current 57 on the flat is likely to become 60 mph on the flat if a sports exhaust is brought into the equasion. I'm in two minds about a race variator, I'm of the opinion that my modified set up is gonna be just as good. Hmmm Lee now its going that fast why not leave well alone  |
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Post by Betty Swallox on Dec 24, 2012 11:18:06 GMT
I'd agree, that sort of speed is cracking for a little moped as a first bike. Sounds like you're enjoying this far more than he is Lee  Surely some of these mods could reduce engine life if not careful?? |
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booya
Trackday Legend
Posts: 239
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Post by booya on Dec 24, 2012 11:53:33 GMT
When modifying scooters people make the mistake of saying itll go faster, it probably wont. What youre after when it comes to scooter tuning is acceleration and its actually quite impressive what is capable. Simple as. When you put a sports exhaust on it is fairly simple to adjust the fueling so that the engine remains reliable.
If you put a sports exhaust on the engine will run much hotter because of the extra air flowing through the engine. In most cases a 10-15% incase in carb main jet and notch higher on the carb needle is all thats needed.
To get it perfect, or as near as perfect without using a dyno and exhaust gas measurement sensors a simple spark plug test can be used... Where you buy a fresh plug and run it without thrashing it but at the same time giving the engine a little beans for a couple of miles and check the colour of the white part of the plug, the ceramic insulating part. Once this part is a colour that resembles the colour of a digestive biscuit then its about right. Too white - too lean = most likely overheat the piston and Youll seize it. Black - too rich = needless drop on fuel consumption, power and likely to foul plugs.
I had a quick look on a website i use for scooter aftermarket parts and couldnt find much for yours anyway.
Today at some point I will post a thread in this topic of my project but it'll take a while for me to re-word and condense the pictures into one post. I know its "only a scooter" but i proper love tuning them and always have. Not like Im one of these little 17 year old chavs who think they know everything xD
Anyway Im rambling. I like your success bro! Keep in mind that scooter speedos are probably a good 5-7mph over reading at that kinda speed.
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booya
Trackday Legend
Posts: 239
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Post by booya on Dec 24, 2012 12:04:22 GMT
For those who wont believe that scooters can be pocket rockets... Have a look at this Piaggio Zip vs Buell xb12s. |
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Post by Lee on Dec 24, 2012 20:14:08 GMT
Man ! See how far forward the lad is sat? Trying to keep the wheel down
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booya
Trackday Legend
Posts: 239
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Post by booya on Dec 25, 2012 14:22:39 GMT
It is quite astounding what is capable.
Even if you get to 45mph and the Buell would kill it haha
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Post by Retired rigworker on Dec 25, 2012 16:11:40 GMT
For those who wont believe that scooters can be pocket rockets... Have a look at this Piaggio Zip vs Buell xb12s. Bloody Hell thats quick |
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Post by Lee on Mar 2, 2013 9:43:40 GMT
Ok the pipe has arrived and its fitted, it's pulling a fair bit better now but I'm gonna alter the variator weights to see if more gain can be had. It hit 61 mph again yesterday, I'm gonna get a new plug in it today and take it from there
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Post by gipsykev on Mar 2, 2013 10:06:06 GMT
im sure you can get 65 out of them with a bit of extra tuning ,
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Post by Lee on Mar 2, 2013 18:35:49 GMT
It's hit 63 mph today, lighter rollers have been fitted which have improved its take off. I've picked up a new plug for it which is going in tomorrow. From here we can work out if any carb adjustments need making
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Post by Lee on Mar 5, 2013 8:09:28 GMT
The plug went in and it was taken on a run. Four miles later it was removed.
White. Which makes it lean. I made some enquiries and the jet definitely needs changing, this is a trial and error thing and is a bit of an in exact science. Rather than buy a bucket of jets, I've dropped the ped in at one of our sponsors, cleveland county scooters in Oxbridge. More details to follow when it's set up
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booya
Trackday Legend
Posts: 239
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Post by booya on Mar 22, 2013 6:21:28 GMT
I could have helped you out with jetting Lee, if only I kept an eye on the forum.
What make is the moped again? They usually share their engines with others.
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And on the sixth day, God made bikes , why wait six days " 
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