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victa twin

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hi all just saying hello im building a kart with a victa twin 170cc ive just started rebuilding the motor and over the next month hope to start on the frame so when i found this site thort ide sighn up
travis
 

sideways

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hi all just saying hello im building a kart with a victa twin 170cc ive just started rebuilding the motor and over the next month hope to start on the frame so when i found this site thort ide sighn up
travis

I cannot tell you how jealous I am, I'm what you'd call a Victa enthusiast and I've been trying to get my hands on a Victa twin for years!

Welcome to the forum, I can't wait to see your build. :thumbsup:

Thanks

Hayden
 

victa twin

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hay thanx hayden in my search on this forum on victa i see you know your way around a victa i will be picking your brain im shore and the twin is a rare donk thats for shore i met a guy today at the local mower shop in cranbourne he thinks he nows were there is 2 more he mite be full of crap but he may come up with the goods time will tell the one ive got is near perfect but i will replace rings and crank seals , slite port work and twin expansion chanbers and remove the g4 carb change for a early type or one of a jap dirt bike it should go quiet well the donk sounds strong in stock trim
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Haha I think I might have to go and ask my local mower shop if they know where any are!

Go new crank seals and rings for sure, I remember reading somewhere that one piston has a bigger dome (so more compression) so it might be worth getting another one of those. That might be BS though. Doing new bearings and stuff on one of those would be easy as too, they've got a normal crank instead of a stupid press fit one.

I know the coils are piss weak on them, you could do twin points and twin motorbike coils but you'd need to either run a total loss battery of make a generator setup, it's a lot of messing around. You might not have problems with the coil though.

I'd leave the ports as they are hay, it might perform worse and you're kinda stuffed if that happens. Clean them up though, Victa castings are generally pretty rough, these engines might be different though.

Go for a bike carby for sure, no Victa carb will be good enough for performance use on one of these, they all have tiny venturis and very limited adjust-ability. It'd be pretty difficult to fit a metal victa carb to a twin anyway. From what I've seen (just parts diagrams) the reed valve set up is nothing special so it might be good to do something about that too.

If you wana get some specs I can design an expansion chamber for you. :thumbsup:

Thanks

Hayden
 

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sounds good as far as the ports go the exuast has a massive cast ridge in them i was going to remove that and clean them out lots of casting edges port time will not be altered and ive got a reed valve and carby of a ty175 24mm it will go on fairly easy with a thick alloy plate and some milling this will also put the carby on the rite angle wth out altering the block at all i will post up some photos when i get some free time in the shed
cheers
 
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