pacemaker box

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byron
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Wed Jan 14, 2009 1:33 am

I've got an Li150S gearbox that has the centre of the tree drilled for the clutch.
Does this mean it's the early type, and shouldn't be used on a more powerful engine ?
Or is that distinction based upon measuring across 5 teeth of 3rd [?] gear ?
thanks again

mickyb
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Wed Jan 14, 2009 7:25 pm

It's the third gear, you want thick one

2wheeldeal
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Wed Jan 14, 2009 7:50 pm

does anyone know the measurement? :?:

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johnd
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Wed Jan 14, 2009 8:14 pm

Ask "ketje" on here, he has used the third gear from an sx box with a drilled pacemaker box and has had very good results, still going strong in his TS1.

mickyb
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Wed Jan 14, 2009 8:35 pm

3rd gear across 5 teeth, early 33mm, late 33.8mm. You cant use the early xmas tree with the later 3rd gear, you need the complete set

joespeed
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Wed Jan 14, 2009 9:13 pm

are there any other gearboxes across the range that can be miss-matched to make a better ratio,i tried this many years ago but it growled and i swapped the cut down/scrambler for a nice tv200 so cant remember what the long term was.
regards
joe

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byron
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Wed Jan 14, 2009 10:43 pm

mickyb wrote: You cant use the early xmas tree with the later 3rd gear, you need the complete set
ah, thanks that was my next question.
johnd wrote:Ask "ketje" on here, he has used the third gear from an sx box with a drilled pacemaker box and has had very good results, still going strong in his TS1.
but you can use the SX150 39 tooth loose gear :?:

i do like the idea of the drilled tree, gotta be good for clutch action

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jonny snatchsniffer
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Wed Jan 14, 2009 10:44 pm

the strong type does not have the hole in the christmas tree. the pacemaker (early) is also the same as a late 125 series 3 box which has the weaker 3rd with the hole in the tree tho i doubt you will break it unless you have a mad engine or are racing.

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RinB
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Wed Jan 14, 2009 10:48 pm

Q Dave ;)

:lol: :lol: :lol:
If its made of Metal Fettle it !!

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byron
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Wed Jan 14, 2009 10:49 pm

jonny snatchsniffer wrote:... i doubt you will break it unless you have a mad engine or are racing.
cheers, that's what i was thinking... it's going in a [probably about] 230cc, but nothing too mental. I only have one scoot and like to keep it on the road.

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