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VHSH on a TS1 225

Posted:
Sat Feb 25, 2017 3:37 pm
by Strummer10
Sorry if covered elsewhere......just wondered
1/ How good on a TS1 225 standard kit with a BGM clubman
2/ Can you fit a filter on under panel some how
Thanks
Re: VHSH on a TS1 225

Posted:
Sat Feb 25, 2017 5:11 pm
by Norrie Bodge
what sized VHSH ?
& what bikes it going on? S1/2, GP, etc...
Re: VHSH on a TS1 225

Posted:
Sat Feb 25, 2017 9:04 pm
by Strummer10
30mm and on a GP
Re: VHSH on a TS1 225

Posted:
Sat Feb 25, 2017 9:53 pm
by Norrie Bodge
A mate has one on his GP but runs without a filter!
I believe the breathsweet filter is ya best option without cutting your panel
Re: VHSH on a TS1 225

Posted:
Sun Feb 26, 2017 9:45 am
by Strummer10
cheers wasn't sure if the elbow would clear the panel .....
Re: VHSH on a TS1 225

Posted:
Sun Feb 26, 2017 4:17 pm
by Paulnobodyimportant
I bought one of these at a dyno by a kart man and curves were far better than th 30 PHBH, ie power up from 20 tp 21.5. However kart knowledge is slightly different from a gravity fed tuned lambretta. So after reading up I changed the float needle to 3.5. The other MB recommendation for the similar VHSA carb was to drill away the half moon bit of alloy in the fuel inlet. But is this still a recommendation for the VHSH.
Re: VHSH on a TS1 225

Posted:
Sun Feb 26, 2017 6:42 pm
by Norrie Bodge

did this to my 32mm VHSA
Re: VHSH on a TS1 225

Posted:
Mon Mar 06, 2017 11:40 am
by Lambretta Sash
I got into vhsh carbs and bought the dyno of a kart friend, when i mentioned about half moon restriction he said "is the aperture smaller than the main jet or needle valve" so i never bothered drilling it.
That was good few yrs ago on RT220 and currently been on my Avanti 30hp for last 3 1/2 yrs with no problem.
Id recommend it if running other than petrol
Re: VHSH on a TS1 225

Posted:
Mon Mar 06, 2017 9:36 pm
by Paulnobodyimportant
That's what I also thought Sash. The 3.5 float needle and main jet is smaller, so even with the half moon restriction, the remaining aperture must be enough to keep the fuel bowl full. On that thought, I'm going to leave alone as that's one job less to do.
Re: VHSH on a TS1 225

Posted:
Tue Mar 07, 2017 6:29 pm
by Wack
For the sake of 5 minutes I drill the 1/2 moon out as it's not going to hurt anything, besides most karts run a pump so there's always some pressure there compared to a Lambretta's gravity system.
Re: VHSH on a TS1 225

Posted:
Tue Mar 07, 2017 6:46 pm
by Paulnobodyimportant
I used to be indicisive, but now I'm not so sure. So as of Wacks post, I'll drill out. But do wonder what purpose the half moon bit served as Dellorto cast it for a reason. If it is a pumped supply, the restriction will increase the velocity of the fuel, but the quantity will still remain the same????
Re: VHSH on a TS1 225

Posted:
Thu Mar 16, 2017 4:48 pm
by Norrie Bodge
Paulnobodyimportant wrote:I used to be indicisive, but now I'm not so sure. So as of Wacks post, I'll drill out. But do wonder what purpose the half moon bit served as Dellorto cast it for a reason. If it is a pumped supply, the restriction will increase the velocity of the fuel, but the quantity will still remain the same????
be sure to only remove the half moon
dont go too deep m8 see pics...


Re: VHSH on a TS1 225

Posted:
Sun Apr 16, 2017 7:30 pm
by Strummer10
Re: VHSH on a TS1 225

Posted:
Sun Apr 30, 2017 4:32 pm
by Strummer10
cheers just need to jet in / get set up etc......is there any details on ere
Re: VHSH on a TS1 225

Posted:
Mon May 08, 2017 7:11 am
by dan66
Try a lth flat manifold gives you more clearance under your panel that's what I use
But I'm running a Mikuni 35