bsr65
High Number
Posts: 114
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Post by bsr65 on Aug 17, 2014 18:51:38 GMT
My px200 cut out on way back from a local rally, I changed the plug as the one in was sooty black and checked for a spark (weak spark) then I changed the cdi ( still weak spark). So I recon it must be the stator, Iv'e noticed LML stators on ebay and was hoping someone could say if they were any good. (the ad I was looking at say,s it is an OEM LML stator)
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Post by henri on Aug 17, 2014 21:00:58 GMT
i use lml genuine staters ,an they fit on my px lump perfect,no problems an at 45 quid a pop ya can get 2 for the price of piaggio 1, the plugs on end can be different to a vespa so its not plug n play, but 15 mins wiring/changin connecters an its good to go,they work best with the lml cdi's "red 1's" an can seem to give a weak spark on blue/ducatti 1's,an in use will give different/lower readings than piaggio when metered which can lead to it being declared duff,i nearly did this before finding the right meter values on a forum,
youve got to make sure its a lml genuine tho,best way is buyin from a reputable british shop rather than a indian e bay dealer,unless its 1 of the long established 1's ,an ya say weak spark does the scooter start n run ,as at kickover there never that good an a sooty plug can be other things than electrics ,how did it cut out ,sudden or slowly ,would it re start wen cold ,if it is the stator as ya reckon just changing the pick-up coil is cheapest option ,to check the pick up meter between the white earth an the red wire it should read 110 ohms +-5 ohms piaggio an around 80-85 lml, an meter between white earth an engine case should be 0 ohms or damm close, if it meters ok you know your problem lies elsewhere ,a low reading is a failing pick up that stops when warm in use but scoot will re-start when cold ,did the new cdi come with a new plug cap or did ya swap your old 1 over ,or just use the vespa/cheapy "gold fork" 1 most new cdi's come with, a duff cap can give probs like yours ,early 1's no resistance later theve got a built in resistance for stoppin radio interference ,makes spark look weaker ,its 5 ohms plus sum noughts but cant remember how many, Henri
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Post by sbwnik on Aug 17, 2014 21:29:24 GMT
I'd certainly start with the cap, but modern ones tend to be fairly reliable, I can't remember the last one I had fail on me.
LML stators are OK, but specify LML when ordering, although last I knew Twisted Rods had some genuine Piaggio ones at good money - I always find them worth asking first on components as they do a lot of 'specials' on price, and they are a bricks-and-mortar shop as opposed to some bloke trading out of his shed.
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bsr65
High Number
Posts: 114
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Post by bsr65 on Aug 18, 2014 7:29:28 GMT
Cheers for answers lads, I was sitting at roadwork lights for ages when it just cut out, Initially no spark but when cold as Henri said it fired up and got me home, checked the plug at home and noticed the weak spark. I don't have a meter to test the stator but it looks like the pick up. Will check out twisted rod,s for price, thanks again.
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bsr65
High Number
Posts: 114
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Post by bsr65 on Aug 18, 2014 15:48:35 GMT
I took the flywheel off today and noticed a bit of damage on the woodruff key and flywheel key slot, also scoring inside the flywheel and on the stator pick up and coils, so looks like someone in the past has fitted the flywheel badly then turned the motor over. Does anyone know if a px125 disc flywheel will fit a px200e disc, I thought they were the same part but the part numbers are different by one number.
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Post by sbwnik on Aug 18, 2014 23:01:31 GMT
They will fit and work perfectly, the finning is a different shape, but I'd not worry about that, they're both usable
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Post by henri on Aug 19, 2014 10:46:19 GMT
ive fitted both to either motor like nic says ,an also spent a hour looking for a "rubbing" on the cover coz different fins give a slightly different fan intake noise an i thought it was a rub, doh!,an if ya aint got electric start or want to get rid to lose the weight a lml electric start flywheel is bout 40-45 quid new ,cover the inside magnets with loads of maskin tape an 2 cuts across the iron starter gear ,grinder/dremel/hacksaw ,= a 1.8kg lightened flywheel same as beedspeed charge 85 for, scoot will rev-up faster then,tho tick-over is slightly more lumpy ,you'll have to fettle the cover to fit aswell if its not electric start originally. H
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bsr65
High Number
Posts: 114
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Post by bsr65 on Aug 22, 2014 9:33:57 GMT
I borrowed a meter to check the stator, oms test for the pick up was 112.7 and 538 for the coil winding which seems fine, still think the stator is the problem though, I have a plastic ngk cap which looks fine but will change it.ht lead is new. Also had a hell of a job getting the damaged woodruff key out, just hope I havn't distorted the crank.
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Post by sbwnik on Aug 22, 2014 11:53:48 GMT
Did you check from white to earth? Should be 0Ohm, or near enough. 112.7 and 538 are bang on the mark, I'm 99.9% certain that the problem is going to be elsewhere. What plug are you using?
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bsr65
High Number
Posts: 114
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Post by bsr65 on Aug 22, 2014 13:45:42 GMT
fitted the stator to check white to earth, first reading was 00.3, then tried again and all different numbers were flashing up, the white wire is in good nick and the soldered joints look good but used a good quality fluke meter so I think nik's shout is bang on. all way's use B8es on p200's with no problems.
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Post by henri on Aug 22, 2014 18:42:49 GMT
i run a b7 in town an its been fine ,keep a b8 for longer runs but have never bothered an been fine , tho rarely go more than 10-15 miles tops ,
a varying reading on your white earth cud mean a internal break in the copper core ,it gets work hardened an breaks but plastic insulation will still look good ,reckon ya need to solder a new length of wire in for a earth ,H
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Post by henri on Aug 27, 2014 15:01:53 GMT
new lml stater 37 quid with postage from scooter republic ,new/old genuine piaggio 45 item number 261575221107 ,H
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