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Post by ianshaircompany on Aug 2, 2006 11:36:35 GMT
ok here is my problem, i have bought a jinlun jl50qt4 and was shocked at how slow it goes. i used to have a neo mbk and once the variator washer was removed it did 50mph on the flat with no problems.
can anyone tell me, what the resrticitions are on these scooters, i have looked in the carb and the washer on the needle is on the middle slot, there is no brass screw either, there is no pink wire going to the cdi unit. and so far i cant seem to get the cover off to get to the variator, took all the bolts out put it stuck on hard, will try and get it open with a screw driver. also i know it will help to change the rollers but where do i buy these from and what size/weight do i need? also i notice on the exhaust there is a plastic pipe attached it it so was wondering if this was a restriction, and the ait filter seems to have a lot of pipes going to it, so maybe the restrictions are there? if anyone can help it would be great. cheers ian
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Post by cb50j on Aug 2, 2006 13:15:21 GMT
I've got the same scoot..........
standard rollerweights were 8.5g, rarely revved over 5500RPM
different scoot with 4.7g revs around 7000 most of the time(redlining at 8000 and beyond sometimes)
even better with other mods
.................. C
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Post by ianshaircompany on Aug 2, 2006 13:18:54 GMT
so you say even better with 4.7g what difference did it make and what other mods? what is the performance like now, i.e. speed
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Post by cb50j on Aug 2, 2006 13:21:25 GMT
mods are listed below post, speed recorded on video.........try looking at stuff!
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Post by ianshaircompany on Aug 2, 2006 13:51:21 GMT
ok what is a koso freeflow and did you do anything to your cdi. and what is that rubber pipe that come from the exhaust for any mods to be done there? what is the top speed you get from yours now?
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Post by cb50j on Aug 2, 2006 14:13:24 GMT
sure there's pics elsewhere but, this is my Koso freeflow airfilter  did I do anything with my CDI? yes, swapped it for an unlimited rev one   don't really know what the valve(?) on the exhaust does, but I have blocked the rubber hose that comes from it top speed without redlining dangerously would be between 50 + 55MPH ........................ C |
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Post by ianshaircompany on Aug 2, 2006 14:15:58 GMT
where did you the cdi from? did you do anything in the variator was there a washer and what about the carb?
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Post by cb50j on Aug 2, 2006 14:27:44 GMT
I got the CDI from scooter assassins, did I do anything in the variator? yes, removed the 8.5g rollerweights  and replaced them with 4.7gs from beedspeed no there was no washer (no pink wire either) what about the carb? only mod to carb so far is the bigger jet  feel free to top up my karma if you,or anyone else likes .............. C |
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Post by ianshaircompany on Aug 2, 2006 14:45:07 GMT
ok where the rollers 15mm x 12mm or bigger and what is the jet called? beedspeed do them but i dont know which one to buy theres so many, what is the cdi unit called scooter assassins? thanks
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Post by cb50j on Aug 2, 2006 14:52:31 GMT
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Post by ianshaircompany on Aug 2, 2006 15:09:07 GMT
a jet theres to many to choose from on www.beedspeed.com not sure which one i know the size but not sure which is the right jet. |
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Post by BillyGreen1973 on Aug 2, 2006 18:08:55 GMT
Good help CBJ, Karma to ya!
The jet you need is a KEHIN CVK MAIN JET
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Post by ianshaircompany on Aug 3, 2006 9:59:39 GMT
thanks for the help ive ordered the stuff will give it a go and let you all know how the performance is once job is done. Any other mods i can do to improve the performance would be grate. also if someone knows what this rubber pipe is for coming from my exhaust that would be a grate help
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Post by ianshaircompany on Aug 3, 2006 10:25:24 GMT
Also i tryed buying a cdi from scooter assasins and there not accepting payments at present. but i put my scooter on th center stand and reved it up and the rev counter went all the way past 10,000 revs but when i ride the bike it only goes to just below 8,000 revs so im just wondering weather i need a new cdi or weather the roller weights and main jet and air filter and new spark plug will increase my speed and performance?
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Post by cb50j on Aug 3, 2006 12:29:57 GMT
 ?? it's all starting to sound a bit strange what speed is your scoot doing at 8000RPM? |
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Post by ianshaircompany on Aug 3, 2006 13:07:53 GMT
mine is doing 35-40 mph and i havent done anything to it yet?
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Post by cb50j on Aug 3, 2006 20:43:54 GMT
back to the start
is your scoot new or second hand, how many Ks on the clock?
how's your acceleration?
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Post by ianshaircompany on Aug 4, 2006 9:44:44 GMT
it is 8 months old i only bought it the other day from a private sale. it has 4440 miles on the clock. the acceleration is not to bad. just takes a long time to get to 35 mph and if i go up a hill it drops to 15 mph and sometimes it can go to 10 mph.
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?? it's all starting to sound a bit strange