Mend CPI GTR 50 Motorcycles

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Find out how to mend CPI GTR 50 motorcycles

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moped wont start! oil on spark plug?

hey, i have a cpi gtr 50 which ive had for a week its broke don twice the first time was the spark plug and since then it stopped starting... i have a compression but no fire i have changed spark plug, replaced spark plug cap and also cleaned my carb i have a good spark but i seem to have oil on the spark plug even after cleaning... was wondering if you could help thanks?

Jordan c
May 2010

CPI CPI GTR 50 Vehicles, Motorcycles Wont Oil Plug

hello i have a aprillia sr50 its 2003 it has real good acceleration then when it gets to about 15mph the revs realy drop and it sticks at 30 for ages takes ages to get to top speed i have cleaned carb new airfilter and rollers could this be the reeds?????

shane locke
January 2011

reed petal is fine no cracks etc. any other options? thanks

jordan c
May 2010

the reed petal is screwed to the underneath of the reed block that the carburettor is fixed to on the engine. if its the engine im thinking of its on the left side as you sit on the bike near the front.it can be a nightmare to get to though you may have to do alot of panel removal to even get at it.

adam bike doctor
May 2010

where is the reed petal located? and it is liquid cooled.. thanks

jordan c
May 2010

check the reed petal isnt broken or cracked i think these use a motori minarelli engine and they seem to suffer from this problem like the aerox's.also the head gaskets fall apart(i take it it is a liquid cooled engine)?.

adam bike doctor
May 2010

still no fire it turns over but doesnt even seem to fire... thanks

jordan c
May 2010

what psi do you have on compression,? put a tiny bit of petrol in plug hole and try and start , let me know what happens

m
May 2010