Gilera Stalker Derestricting

[DaBootnoze]

Just wondering if anyone could give me sum guidelines to derestrict my gilera stalker i have removed the washer behind the variator and this gave me a top speed of 35mph i have heard of a brass plate at the mouth of the carb or in the air box but am unsure of where it is and what to do and if i will need to jett it up
thx help much appreciated how else can i derestrict it as it gets to 35 and goes flat thankyou

[cheekythomas]

There is a brass plate fitted to the carb where the airbox inlet is fitted but its not there as a restriction, its there to cause a negative pressure in the inlet manifold and shouldnt be removed unless your doing more than a normal derestriction.

You need to remove the washer from the variator like youve done, remove the resonator pipes from the exhaust and weld up the holes, then upjet it.... It should now do a clock speed of about 50-55mph

Being a stalker which is a update of the SKP it should already have the Dellorto 17.5mm carb not the older 14mm weber... If so it will have a 53 main fitted as std but needs a 60... which will also stop the whiteness on the end of the standard exhaust

[DaBootnoze]

thankyou you helped me out a lot i wont remove that plate i just want a simple restriction my gilera also has a performance exhaust and rollers is there still a resonator pipe? will a k+n air filter help at all my old filter is holding back so i tried it without one and it improved a lot but stuttered when i first pull away will a k+n be ok your a great help much appreciated

[beatnck]

k and n filter might help, but you would have to rejet the carb, otherwise it will run lean and seize

[DaBootnoze]

thankyou should i upjet my main jet to a 70 with a k+n?

[cheekythomas]

No if its a race exhaust it wont have a resonator pipe... Did you fit the pipe?? If so... did you make sure there wasnt a restrictor tack-welded into the downpipe to make it E-marked??

I would stay clear of open filters on 2 strokes, especially at this time of year as they hate the damp... Yes it will need upjetting if you fit a open filter but it will need to be much bigger than a 70, however no-one will be able to tell you what size as it varys... last DNA i fitted one to went from std 53 to a 105

If you want to improve the airflow a little then take the rubber inlet snorkle out of the airbox, youll need to upjet to suit

[DaBootnoze]

thankyou is that all that restricts it then? i was thinking about a big bore kit like a 70 but am unsure what to go for any ideas your a brilliant help and you explain it so well

[DaBootnoze]

i did not fit the exhaust will the bore kit improve top end as acceleration is brilliant but it does die about 35mph

[cheekythomas]

You sure you removed the variator restrictor if its only doing 35mph?? It should be another 10mph on top of that??

[DaBootnoze]

yes i have i took the variator cover off got a variator tool and took the variator off and got the washer off. I also had the pipe fitted with rollers. but it reaches 35mph then dies seems weird to me aswell lol does the pipe have a slight restriction in it even though it is a sports pipe?

[cheekythomas]

If you took the ring off on the variator and its only doing 35mph theres something wrong for sure.

Take the exhaust off and make sure theres no restrictor on the downpipe... what make of pipe is it??

Also make sure you have upjetted it or it will be killing itself everytime you start it up

[Timmeh]

Perhaps you should just buy a 125 sports scooter.

Safer in the long-run.
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[DaBootnoze]

the pipe is a "kunda"

[cheekythomas]

Kundos are decent pipes...

I would say its still restricted, and as youve not mentioned upjetting STILL i would also say running dangerously lean.

Is acceleration good?? Or slow as well??

[DaBootnoze]

acceleration is good but i have not upjetted yet do you reckon it will help it's top speed?

[cheekythomas]

Dont worry aboutm speed... if youve not upjetted it, it will be lean and killing itself!

[DaBootnoze]

what are you saying I need to upjet it as it is killing itself or i shoudn't?

[Wafer_Thin_Ham]

Yes he's saying you need to upjet or the motor will seize because it's running dangerously lean. UPJET UPJET UPJET!
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[grant-fox]

[bradh511]

hi there i am new to the forum i have a 2008 gilera stalker nkd it has done approx 7,500 miles not km wich i know is hi millage (daily run about ) thinking about derestricting mine as am fed up of the 29 ish mph how much would takeing the variator washer off get me up to in mph. Im then thinking of getting race or sports pipe and k&n air filter and rejetting it im wondering what sort of speeds this would do ? tbh im not exspecting nothing major and i need to wait to get some money i will do the free things frist any other surgestions

[leescott09]

!!!!!!!!!GILERA STALKER!!!!!!!
i,ve just brought a 55plate GILERA STALKER 50cc
its been derestricted it went 60 mph 3-4 years ago but has been locked up in a garage since then
what should i do to get it back up to that, also what should i get for performance wise other than leo vince tt and rollers
cheers

[stalker94]

[b]i brought a 04 stalker the otha week all i have done is take the gold ring ut of carb gianelli race pipe n 4 gram rollers n i can touch 70 down hill n around 65 on a flat so i fink theres somthin goin seriously rong on yours m8 [/b]

[mazzda-007]

i have a 2004 stalker. i put a leo vince zx exhuast on it and have upjetted from the standard 53 to a 60 jet.

im getting around 40mph at the moment but hoping can get more when i upgrade the rollers (dont no what weight any ideas) cluth springs and variator spring (all on ebay) hoping to get quicker speed once all this is done.

btw if u dont upjet the piston goes threw the roof of the engine (no from experiance) so defo upgrade from a 53 upto 60 jet!
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