Search found 239 matches

by tavspeed
Wed Sep 23, 2020 4:23 pm
Forum: Lambretta Tech
Topic: sil 2 hole silent block
Replies: 8
Views: 590

Re: sil 2 hole silent block

bgm say something about the crank is not on the centreline of the engine,so wants to twist the engine in the frame because of the centrifugal force,thats why they have the holes have to be in the correct position and the kickstart also wants to twist the engine when starting,,cheers
by tavspeed
Wed Sep 23, 2020 4:14 pm
Forum: Lambretta Tech
Topic: sil 2 hole silent block
Replies: 8
Views: 590

Re: sil 2 hole silent block

if we use the clock face as a reference,each hour is 30 deg,so 8-10 is 60 deg and 1-3 is 60 deg,but 10 -1 is 90 degrees!!,i would say the 2 holes are 60 degrees apart, think i will go with nick b,s,cheers
by tavspeed
Tue Sep 22, 2020 7:19 pm
Forum: Lambretta Tech
Topic: sil 2 hole silent block
Replies: 8
Views: 590

sil 2 hole silent block

hi chaps,got a pair of gp sil 2 hole silent blocks to fit for a mate,can any one confirm the orientation of the holes,cheers
by tavspeed
Thu Aug 20, 2020 5:45 pm
Forum: Vespa Tech
Topic: vespa cosa rear hydraulic hose removal
Replies: 0
Views: 338

vespa cosa rear hydraulic hose removal

anybody know how to remove the rear hose,goes into the frame above the swing arm,and seems to have a metal sleeve,can,t budge it,do i have to remove tank etc to get it out,cheers
by tavspeed
Mon Jul 27, 2020 7:52 pm
Forum: Lambretta Tech
Topic: GT186 piston skirt question
Replies: 5
Views: 810

Re: GT186 piston skirt question

if you have your old piston,measure from the centre of the gudgeon pin to the bottom of the skirt.and compare it to your new one, if you are going to use the new one you will have to shorten the skirt to suit,adding packers will only,raise the barrel,strange that it is hitting the case with a 110mm ...
by tavspeed
Sun Jun 28, 2020 7:40 pm
Forum: Lambretta Tech
Topic: ts1 yamaha reed valve options
Replies: 1
Views: 397

ts1 yamaha reed valve options

hi chaps,i have what i think is a ts1 yamaha reed valve assembly,it has stainless steel reed petals,which i am wanting to replace,does anyone know the exact yamaha model which has compatable petals,rd350,rd350ypvs,banshee etc, i should be looking at,or any recommendations,and can you confirm i would...
by tavspeed
Thu Jun 18, 2020 11:01 am
Forum: Lambretta Tech
Topic: Effect of humidity and air temperature on carb performance
Replies: 55
Views: 11476

Re: Effect of humidity and air temperature on carb performance

i ran a pwk ,think it was a oko from scootrs,for years on a cast 200 top end,scorpion exhaust,didn't know much about jetting then,but put a 115 main in,think i was lucky,because i hit the sweet spot straight away,and thrashed it mercilessly,keeping up with the ts1's,never let me down,and did high fo...
by tavspeed
Tue Jun 09, 2020 11:30 pm
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1443

Re: yamaha conrod questions

cheers,good tip about the neoprene strips
by tavspeed
Tue Jun 09, 2020 2:56 pm
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1443

Re: yamaha conrod questions

have looked at various rods,and i think i am going to use the dt125ypvs rod as the big end bearing is 28mm o/d and i can get a rb spec bearing from af that is suitable,could'nt get conformation on what size big end bearings are on the other rods and didn't want to mess about sending them back. the ...
by tavspeed
Tue Jun 02, 2020 10:42 pm
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1443

Re: yamaha conrod questions

did you run the ke175 rod with the supplied bearing with your ts1,a rb spec flat cage bearing at af is £12.50,but is 16mm wide,so possibly run that with .5mm shims,if the i/d will fit over the needle cage,cheers
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