Search found 235 matches

by tavspeed
Mon Jul 27, 2020 7:52 pm
Forum: Lambretta Tech
Topic: GT186 piston skirt question
Replies: 5
Views: 511

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: 314

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: 10302

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: 1058

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: 1058

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: 1058

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
by tavspeed
Sun May 31, 2020 10:23 am
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1058

Re: yamaha conrod questions

cheers will have a look at the ktm rod if i change to a 30mm deck height piston. the ke 175d rod has a 15mm wide big end so can be used in standard width crank webs without machining them,and no shims,although not sure about what bearings are available in that width, my rb crank webs measure 12.1mm ...
by tavspeed
Fri May 29, 2020 1:45 pm
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1058

Re: yamaha conrod questions

hi cheers warkton,do you know what model that rod is off can't find it cheers
by tavspeed
Fri May 29, 2020 12:14 pm
Forum: Lambretta Tech
Topic: yamaha conrod questions
Replies: 16
Views: 1058

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 y...
by tavspeed
Thu May 28, 2020 2:05 pm
Forum: Lambretta Tech
Topic: Suzuki 190
Replies: 18
Views: 1610

Re: Suzuki 190

cheapest bang for bucks,200 barrell and piston,machine spigot to suit 150 casing,drill out one of the cylinder holes,and you can squeeze them on after fettling gaskets etc