ts1 225 to 240

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
roadrunnerian
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hi,
which way is the best to convert my ts1 and would i get any big advantages thanks :D
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Andy Pickering
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Location: Hull
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Red runs a TS 240 built by Jase Frost
Ricspeed, gone but never forgotten RIP my friend #59
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RICSPEED
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Location: YORK

simplest is to look at using a long stroke crank 60mm or 62mm and keep the 70mm bore but port timings will need to be corected and base packers / toping and tailing of the barrel needed ,the larger stroke cranks require case to be machined to clear the rod end
Its in bits scooter club: www.facebook.com/groups/132415046859320
roadrunnerian
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Thanks for info guys sounds like what i,m after more torque nice one
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bazman
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The easy option i found was to fit a 60mm crank which did not require casing mods , 1mm basepacker/gasket from AF, no head gasket and dowl'd head. Vast improvement to tourque over the 58mm crank, still runs 4.8 gearing and a race pipe and pulls very well.
Train Driver
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Mb used to do 64mm cranks and last year i think i read about 66mm & 69mm cranks :o :o
I'm no expert but was told once over 60mm a 120mm rod was needed to stop vibration ????
TS1 and PX stay in the garage (future barn finds) out on the GTS 300 when I go out on a scooter.
I know I’ll get there and back
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red
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Main scooter: Scomadi TL 250 (Ltd Ed No.3)
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Andy Pickering wrote:Red runs a TS 240 built by Jase Frost
It's a 230 ;) :D
I do not try to explain why I ride Lambrettas,
For those who understand, no explanation is necessary,
For those who don't, no explantion is possible.
scoot gp
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Recently done mine to a 240 (238) for this season, spec is:

71mm touring tune by chisel speed running no gaskets
60-115 mb crank
30mm mikuni
Taffy pipe
m tech
Dynod at 21bhp at chisel speed

fuel consumptions good and sits nicely at 70-75 with very little vibration and plenty of torque.
scoot gp
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eden wrote:
scoot gp wrote:Recently done mine to a 240 (238) for this season, spec is:

71mm touring tune by chisel speed running no gaskets
60-115 mb crank
30mm mikuni
Taffy pipe
m tech
Dynod at 21bhp at chisel speed

fuel consumptions good and sits nicely at 70-75 with very little vibration and plenty of torque.
interested what the torque figure was when it was dyno'd :?:
Graphs still in the car, i'll take a look in the morning.
soullad
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bazman wrote:The easy option i found was to fit a 60mm crank which did not require casing mods , 1mm basepacker/gasket from AF, no head gasket and dowl'd head. Vast improvement to tourque over the 58mm crank, still runs 4.8 gearing and a race pipe and pulls very well.
this also is a 230 ;) unless you running 71mm piston.
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