What do i need if i want to put a 70′s kit on my Gilera Runner?

Posted on January 9, 2012 by admin

I want to put a 70cc kit on my Gilera Runner.
Firstly any recommended kits that are better?
What carb/jet sizes will i need?
Any advice would be appreciated :)
Thanks

Firstly make sure any 70cc kit you get will fit a Piaggio type engine. If you get a high-end 70cc kit you will need a bigger carb, 17,5 would do fine. For the jet size, i would say for a start, get one around 95 or so, smaller chance of overheating or destroying your engine if your running rich. If 95 is too big, move down 5 sizes and try again. If it feels too lean(engine revs to max in just 1/2 turn of the throttle) get a bigger jet. There are a lot of scooter-tuning forums where you could ask, people there are very friendly.

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3 Responses to What do i need if i want to put a 70′s kit on my Gilera Runner?

  1. matt k says:
    January 10, 2012 at 3:24 am

    any kit by mallossi or polini is good
    the standard carb should be fine but you will need bigger jets, probably about 4 sizes up (by a set and then just try different ones out till it runs good)
    i would also advise you to get a race/sports exhaust if you haven’t already
    References :

  2. Z0ne276 says:
    January 10, 2012 at 3:35 am

    Firstly make sure any 70cc kit you get will fit a Piaggio type engine. If you get a high-end 70cc kit you will need a bigger carb, 17,5 would do fine. For the jet size, i would say for a start, get one around 95 or so, smaller chance of overheating or destroying your engine if your running rich. If 95 is too big, move down 5 sizes and try again. If it feels too lean(engine revs to max in just 1/2 turn of the throttle) get a bigger jet. There are a lot of scooter-tuning forums where you could ask, people there are very friendly.
    References :

  3. Robbie Copley says:
    January 10, 2012 at 4:10 am

    Anything malossi or polini, the doppler s7r is a nice kit, New crank and bearings, cause bore kits wear standard cranks down, saves having it stripped back down 1000 miles later, carbon reeds, 70cc exhaust, kevlar belt, recommend malossi, upjet ten percent and go from there, haha sort your brakes out aswell.
    References :