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So like i mentioned in my video this is the 2005 piaggio type 150 cc two-stroke as using the hyper 2 engine that is made by the piaggio group so if you have an italian scooter 50 cc scooter i was made anywhere between probably 2000 year 2000 to year 2008 chances are you do have the same engine no matter what brand vespa piaggio gelareh aprilia and what else um

This engine comes in two formats i think one is the liquid cool and the other one is the air cool which is the one you see in front of you so the thing with these scooters engines the hyper 2 engines is they are equipped with a 17 point five millimeter slide carburetor and one of the restrictions that you will find is a brass plate that covers basically the entire

Opening of the carburetor in it this prevents any air from getting in and some people think it improves overall performance that may be true just because like carbs are usually quite temperamental to temperature changes and basically everything but if you’re if you want to tune your scooter everyone do be strict your scooter this is one of the areas where you must

Definitely open up reject your card and in doing so gain more horsepower the other two restrictions usually found in european bikes are a restrictor in your variator which limits your gearing to 30 miles per hour or 50 kilometers per hour that one is not found in north american piaggio typhoons the other one is a exhaust restriction that is also not found in this

Bike when tuning your carburetor you always want it to be warm i suggest starting off with tuning the idle first after which you want to tune the bit range and finally change the main jet so once you have removed all the screws fastening the airbox down on to the engine the whole airbox assembly should come right off a little wiggling i’m sure nothing is being held

On if you don’t have to just move your air box to the side you don’t have to take it out all the way you can see the snorkel came off already and that is the brass restrictor i was talking about you can see there’s only five holes that really let air in and all the other one and if you open this up if you just take it out like that it should improve performance

By quite a bit so now um with your entire setup removed with the restrictor remove you will need to do a little jetting that involves taking this carburetor out and doing a little bit of tuning so right now i’m going to drain i want to drink the carburetor float bow and put in a 62 main jet usually it’s recommended that you put in something higher a higher main

Jet especially for two-stroke scooters you would want to put in a higher main jet just to prevent the scooter from running lean running lean could cost the piston to seize because you won’t have enough you don’t have the proper lubrication so if you drain the carpel there’s a bull right here on you to turn it so there you go that is the flow po exposed set that

Aside somewhere safe try not to get any dust in it most people suggest use it starting off with a 63 main jet i have a 62 main jet right here and we’ll give that a try if you’re running an open filter or no filter at all for a raised application you probably even more feel but i’ll give this a try first so just snug is good do not overtighten it because these are

Brass jets and they will get crushed if you go too tight on them the one that was stock on the bike wasn’t that tight in the first place so just snug is fine should be good so with the main jet installed now you can go ahead and put your float bowl back on you you

Transcribed from video