S Tarting A Nd B Rake-­-In - Vortex MINI ROK Owner's Manual

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VORTEX FACTORY: Via E. Fermi, 5 – 27040 Campospinoso (PV)– ITALY – Tel. +39 0385 765200
4. S TARTING A ND B RAKE-­‐IN
Break-­‐in i s r equired w hen a n e ngine i s n ew o r h as u ndergone a m ajor s ervice o f t he e ngine's m ain
parts ( pistons, r ings, c ylinder o r c rankshaft). O nly a p roper b reak-­‐in w ill i nsure t he b est
performance o ut o f y our e ngine i n t he f uture a nd g uarantee i ts l ong a nd t rouble-­‐free l ife.
1
P repare f uel. V ortex e ngine w orks w ith c ommercial g asoline, l eaded o r u nleaded, a s w ell a s
racing f uel, w ith m inimum 9 5 R OM.
Mix o il a nd g asoline a t 3 % ( i.e. 3 0cc o f o il e very 1 .000 c c. o f f uel).
2
U se a h igh q uality 2 -­‐stroke o il s pecifically m ade f or k art e ngines. W e r ecommend P etronas R ok
Lube, h owever m any o thers o ils w ith t he s ame f eatures m ay b e u sed. C heck a ny r equirements o f
your A SN r egarding t he u se o f s pecific b rand/type
3
S hake t he c an t horoughly t o m ix t he f uel a nd t he o il p roperly. T hen f ill t he g as t ank i n y our k art.
A m istake i n m easurements c ould r esult i n e ngine d amage.
4
B uttons: t o s tart t he e ngine p ress t he g reen b utton. T o s top t he e ngine p ress t he k ill s witch r ed
button.
5
T o s tart a c old e ngine p ull t he c hoke l ever u p.
6
P ress t he s tart b utton ( green) i n o rder t o a llow t he f uel p ump-­‐to-­‐pump f uel t o t he c arburetor.
7
O nce t he e ngine s tarts p ush t he c hoke l ever d own.
8
R un t he e ngine b y a ccelerating i ntermittently t o h igher R PMs. D o n ot a ccelerate t o f ull t hrottle.
9
O nce t he e ngine i s w armed u p, p roceed t o t he t rack. B y a ccelerating v ery c arefully, t he c lutch
will e ngage a nd t he k art w ill s tart m oving f orward.
10
R un t he e ngine b y a lternating a f ew s econds o n a nd o ff t he t hrottle a t ¾ o f t he o pening.
Do n ot h old t he t hrottle a t a c onstant s peed.
Continue t his w ay f or 5 /6 l aps.
11
C heck e verything o n t he k art i s t ighten p roperly. B e c areful, e ngine a nd m uffler a re h ot.
12
R eturn t o t he t rack a nd s lowly i ncrease t he R PM a nd d uration o f t he a cceleration f or
10/15min m ore. I ntermittently o pen t he t hrottle f ully a nd t hen r elease i t.
13
A fter 1 0/15 m inutes o f b rake-­‐in, y our e ngine i s r eady f or c ompetition. D uring t he b reak-­‐in,
nuts a nd b olts t end t o l oosen. O nce t he e ngine i s c old, c heck t he t orque o f t he e xhaust, h ead, e tc
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Rev. 30/09/15