Search found 85 matches

by Bensmith225
Thu Sep 12, 2019 8:56 am
Forum: Vespa Tech
Topic: Malossi 166 overbore
Replies: 0
Views: 811

Malossi 166 overbore

I’ve been given two Malossi 166 barrels one is standard size and lost a circlip leaving a slight groove down the side of the barrel and it’s just too deep to bore out for the maximum size Malossi piston, the other is on the maximum oversize and smashed a piston and after honing is also too big for a...
by Bensmith225
Tue Apr 23, 2019 9:42 pm
Forum: Lambretta Tech
Topic: Rb 230 jetting
Replies: 0
Views: 666

Rb 230 jetting

Recently built a ported rb22 with a 60/110 crank. Currently running a vhsb 34 with power jet and an early nk race exhaust. Jetting is 188 main k21 need on the third clip down on a 266 atomiser and 60 pilot. Power jet is 3/4 of a turn out. I’m changing the exhaust to a modified jl3 due to the nk’s po...
by Bensmith225
Wed Mar 06, 2019 10:07 pm
Forum: Lambretta Tech
Topic: Ideal rb setup
Replies: 3
Views: 853

Re: Ideal rb setup

There are some design flaws in the inlet, the outer reeds hit the cylinder in the corners both preventing it from opening fully and causing it to eventually crack off on that corner, also the bottom of the inlet actually kicks up rather than down, he’s not changing the port timings or altering the e...
by Bensmith225
Wed Mar 06, 2019 3:37 pm
Forum: Lambretta Tech
Topic: Master cylinder
Replies: 2
Views: 657

Re: Master cylinder

It’s a generic nissin style master cylinder with the bottom lug cut off and then a hole re tapped for the bottom fixing


Sent from my iPhone using Tapatalk
by Bensmith225
Wed Mar 06, 2019 3:36 pm
Forum: Lambretta Tech
Topic: Ideal rb setup
Replies: 3
Views: 853

Ideal rb setup

Bought a used rb22 kit with vhsb 34 and a modified jl3 exhaust, since the jl3 was missing a load of bits Ive got an nk race off a mate to stick on it for now. I’ve got a 60/110 pro porting crank an li150 box with 16/46 sprockets, if it comes to it I’ll drop down to 15/46 to get a better final drive ...
by Bensmith225
Tue Mar 05, 2019 10:33 am
Forum: Lambretta Tech
Topic: Nk exhaust end can alternative
Replies: 2
Views: 748

Nk exhaust end can alternative

Has anyone found an off the shelf silencer that fits an nk exhaust? The flange is bigger than the franspeed one I’ve got


Sent from my iPhone using Tapatalk
by Bensmith225
Sun Mar 03, 2019 6:09 pm
Forum: Lambretta Tech
Topic: Rb piston options
Replies: 14
Views: 2129

Re: Rb piston options

Yeah I asked him when I went to pick my crank up. And also the ring peg ends up in a boost port so it’s a no go for the rb


Sent from my iPad using Tapatalk
by Bensmith225
Thu Feb 28, 2019 3:23 pm
Forum: Lambretta Tech
Topic: Rb piston options
Replies: 14
Views: 2129

Re: Rb piston options

Im not sure if the Harry Barlow one is an off the shelf dt piston or one he has made with a smaller pin


Sent from my iPhone using Tapatalk
by Bensmith225
Wed Feb 27, 2019 3:43 pm
Forum: Lambretta Tech
Topic: Rb piston options
Replies: 14
Views: 2129

Re: Rb piston options

Not entirely sure but it does look like the same one


Sent from my iPad using Tapatalk
by Bensmith225
Tue Feb 26, 2019 9:39 am
Forum: Lambretta Tech
Topic: Rb piston options
Replies: 14
Views: 2129

Re: Rb piston options

That’s interesting. I’ll have to have a look into those, Harry Barlow did mention he uses a dt250 piston made by the same manufacturer as his pro porting ones that he uses on his steel liner ts1 conversions that only cost about £60, I might go and measure that up too, the meteor piston is a good sho...
cron