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Post by johnbarnes1990 on Apr 5, 2006 16:04:02 GMT
 hey guys ive got a brand new taishain 50 and has only done 100 km's. the thing is it is so embarrassing going up hills and strugles to get to 20mph.... along the flat is 25/30mph and down a hill i can get 47mph which is not bad atall.....but when i go along every main road i cannot keep uP and is already 15 mph under the speed limit....it is very adjetating? any ideas as to whats wrong? my scooter is de-restricted by the way...  thanks
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Post by ally1756 on Apr 5, 2006 16:24:23 GMT
let it run in
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Post by Macrofeet on Apr 5, 2006 17:08:58 GMT
yeah give it another 200k then i'd look at the valves
and replace the plug with ngk and oil
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Post by Macrofeet on Apr 5, 2006 17:14:20 GMT
my scooter is de-restricted by the way...
did you do this, not the best idea on abrand new bike that ha snot been run in ?
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Post by johnbarnes1990 on Apr 5, 2006 19:50:36 GMT
actualy i had another run on it and it managed 23mph on exactly flat.....15 mph up a slight hill....i dont no wat to do...
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Post by cb50j on Apr 5, 2006 20:10:28 GMT
don't panic.....sounds like mine when I first got it, check for the brass screw inside the black carb top, it was the only restriction I had,once removed there was great improvements instantly.....
............. #sprint#
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Post by cb50j on Apr 5, 2006 20:17:50 GMT
oops, forgot....when I did get 4.7g rollerweights, I checked originals, they were 8.5g? ? this could be a possibility for poor top speeds,but no-one else seems to have had this 8.5g that I've heard about......... ........... #sprint# |
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Post by r08813 on Apr 5, 2006 20:33:50 GMT
give it back and get a 125 !! the chnese 125's are designed to only go at max 50mph
50's are only designed to go at 30mph top speed - de restrict it if you want, It's your life that's at risk, maybe you can get 70 mph out of it de restricted, but your brakes are only designed to stop a bike capable of 30mph
Change the rollers, that may give more speed, but the frame is only capable of 30mph, they twist on these chinese scooters and that affects the handling, so you won't be able to get round corners safely.
These are VERY VERY cheap bikes, the design is AT LEAST 20 years old, and they were discontinued by Honda and Yamaha over 10 years ago - they are not designed to go over 30 mph. if you want to fiddle with a 50cc get a modern one - they start at only 2 grand!
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Post by ally1756 on Apr 5, 2006 20:35:47 GMT
give it back and get a 125 !! the chnese 125's are designed to only go at max 50mph 50's are only designed to go at 30mph top speed - de restrict it if you want, It's your life that's at risk, maybe you can get 70 mph out of it de restricted, but your brakes are only designed to stop a bike capable of 30mph Change the rollers, that may give more speed, but the frame is only capable of 30mph, they twist on these chinese scooters and that affects the handling, so you won't be able to get round corners safely. These are VERY VERY cheap bikes, the design is AT LEAST 20 years old, and they were discontinued by Honda and Yamaha over 10 years ago - they are not designed to go over 30 mph. if you want to fiddle with a 50cc get a modern one - they start at only 2 grand! no they are quite capable of more then 30mph and the brakes easily stop me from 50, which yes i do get occaisonally, the frames are solid too they will not bend! |
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Post by cumbria123 on Apr 5, 2006 20:49:51 GMT
Hi
I have heard on this site that running in these bikes and regular oil changes are very important.
Your scoot is 4 stroke so doesnt need to be as rich on fuel mixture as 2 stroke
Try turning your carb mixture screw fully clockwise (counting the turns) and then turn back out 1 and a half turns. If this has no effect, keep turning the screw out till it does.
A little goes a long way. So be careful.
You counted the turns as you wound the screw in so you can always return it to factory standard.
These engines prefer to be slightly rich on mixture. If you run them too lean it can damage the valves.
Hope this helps ;D
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Post by johnbarnes1990 on Apr 5, 2006 21:25:44 GMT
k thanks for the input guys but im a complete dumbass about these things....apart from the oil tube at the right hand side of the bike lower down are you suposed to top up some oil into the petrol tank? and also where do i get these rollers fitted and which ones do you reccomend i should get? thanks  |
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Post by cb50j on Apr 5, 2006 21:41:30 GMT
give it back and get a 125 !! the chnese 125's are designed to only go at max 50mph 50's are only designed to go at 30mph top speed - de restrict it if you want, It's your life that's at risk, maybe you can get 70 mph out of it de restricted, but your brakes are only designed to stop a bike capable of 30mph Change the rollers, that may give more speed, but the frame is only capable of 30mph, they twist on these chinese scooters and that affects the handling, so you won't be able to get round corners safely. These are VERY VERY cheap bikes, the design is AT LEAST 20 years old, and they were discontinued by Honda and Yamaha over 10 years ago - they are not designed to go over 30 mph. if you want to fiddle with a 50cc get a modern one - they start at only 2 grand! ? how old are you? pre 76/77 50s were'nt restricted I'm doing 50 regularly ............. #sprint# |
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Post by cb50j on Apr 5, 2006 21:44:21 GMT
gussing by the username(1990) the lad's only 16........
............. #sprint#
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Post by ally1756 on Apr 5, 2006 22:42:32 GMT
k thanks for the input guys but im a complete dumbass about these things....apart from the oil tube at the right hand side of the bike lower down are you suposed to top up some oil into the petrol tank? and also where do i get these rollers fitted and which ones do you reccomend i should get? thanks DO NOT PUT OIL IN THE TANK!!!! its a 4stroke not a 2 stroke so it has its own lube system, dont worry about oil yet, just fill her up with pure unleaded |
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Post by johnbarnes1990 on Apr 5, 2006 22:56:57 GMT
cheers ally, i shall also be buyin (3X) 13mm x 16mm 4.7gramme and (3X) 13mm x 16mm 5.7 gramme rollers  !! hope it does the job!!! |
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Post by ally1756 on Apr 5, 2006 23:13:46 GMT
kool, keep a hold of the stock ones as you may need to put them back in at a later date ally |
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Post by Macrofeet on Apr 6, 2006 0:40:30 GMT
what r08813 wrote is very harsh but some of it true
our scoots are tested and approved in the uk upto 29mph
above 35 and they could be dangrous you might think i'm wrong but the tires are not amazing quality i dont think they should be pushed everyday to the max
on the other hand
it can be just as dangerous to go 30mph with many cars overtaking you and all drivers getting impatient and also the feeling like a complete noob could cause a crash trying to rush courners lights etc
therefore i say it is safer to go the speed of the traffic 35mph on the flat is a safer speed 40mph is the speed limit on some roads 30 is to slow for this
with 125 i'd say is less likly to cause an accident due to the higher speed and size of it you will not get passed around town you will allways be able to keep up with inner city traffic
i have both bikes and if i get my 125 to work i will be switching i am looking at buying a new 125 if i cant get it to work
my main reason
i want to be able to drive 15-20 miles a day to work with less risk
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Post by ally1756 on Apr 6, 2006 0:47:01 GMT
has anyone ever had problems going at speed above 35? i havent i have this corner that i take off an A road that is very long but tight at the same time and i can take it at 40 with no problems, as for the frames bending it would tkae speeds of over 100mph to even start worying about the frame ally |
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hey guys ive got a brand new taishain 50 and has only done 100 km's. the thing is it is so embarrassing going up hills and strugles to get to 20mph.... along the flat is 25/30mph and down a hill i can get 47mph which is not bad atall.....but when i go along every main road i cannot keep uP and is already 15 mph under the speed limit....it is very adjetating? any ideas as to whats wrong? my scooter is de-restricted by the way... 
!! hope it does the job!!!