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Post by phattanglo on Oct 22, 2018 10:42:47 GMT
My scoot is in bits at long last and I'm currently using my son's px200 for commuting. He recently rebuilt his motor and fitted a new crux and reported no problems with the gearbox. I on the other hand have had proper adventures with it. My extremely lardy carcass is obviously making it work harder and it's slipping out of 2nd & 3rd regularly. strangely no probs with 1st & 4th. I've checked and it is the correct later style selector box for a 2004 model and after giving the tapered pin a tap there doesn't appear to be any play on the selector arm. It tends to be under load, uphill etc and jumps out and then immediately back into gear. It's so quick it's almost like the clutch is slipping but it's definitely not that. |
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Post by mijapxman on Oct 23, 2018 1:25:37 GMT
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Post by phattanglo on Oct 23, 2018 5:32:47 GMT
I think your right Jim cos if I put the put the gear shift under a bit of tension as if I'm changing down gear it doesn't jump so it probably is wear and tear.
I didn't build the engine so it's probably worth investigating anyway cos apart from that the scoot goes great.
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Post by phattanglo on Oct 25, 2018 18:02:19 GMT
Just to be clear, apart from the final drive are the 125 & 200 gears the same or do I have to be specific when looking for replacement gears?
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Post by ironsloth on Oct 25, 2018 21:31:56 GMT
I'm pretty sure the 200 gears are different, reckon they have more teeth than a nursing home....
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Post by phattanglo on Oct 26, 2018 14:22:03 GMT
So am I right in thinking that when a T5 fourth gear is fitted to a 200 it needs the T5 layshaft fourth gear fitting as well?
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Post by mijapxman on Oct 27, 2018 19:47:38 GMT
So am I right in thinking that when a T5 fourth gear is fitted to a 200 it needs the T5 layshaft fourth gear fitting as well? If your gearbox is from 2004, the layshaft will be shimmed on both ends so a T5 fourth /px125e (36 tooth) gear is a straight swap for the standard (35 tooth) fourth gear in a px200e/ 200 disk gearbox. Remember to check the shimming after fitting the new gear. Here is a gearbox calc that shows the primary drive and gear tooth count, that show's the values of the different gearboxes 👇 gearingcalc.free.fr/Where it says ''base" click the arrow and select the model whose gearbox you wish to see. When you select the gearbox eg: px200, you will see "nuts" this = the number of teeth on the clutch drive gear eg:23 Crown = the number of teeth on the primary drive gear, that mesh with the clutch gear, eg: 65 for our px200 example. "Fir" = the number of teeth on the primary drive that mesh with each loose gear "Pinion" = the number of teeth on each loose gear. If you then click on the small arrow just outside the oblong box that shows the above data, it takes you to the next part which says "model" you click this part to select the size of tyre you will be using eg: 350×10 and in the gray box below you will then see the calculations for each gear used. The four different coloured line represents the theoretical speeds each gear will do, in Km/h and at what revs.? Mij☺ |
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