Typhoon 70cc problem

jusspb

Well-Known Member
Hello, i have a typhoon with a bad problem:S
Top Performance Trophy 70cc
Doppler Endurance crankshaft, C4 bearings
Gianelli shot exhaust
Dellorto 17,5mm carb, 88 main jet.
Hebo power filter
Malossi multivar
New original belt
Malossi Deltaclutch
Malossi sport clutchbell
New NGK spark plub cable
Malossi MHR valves
Polini intake manifold
this is the set.
Problem. i cant go over 45-50 km/h
it starts to make really unpleasant sound. i cant udnerstand is it electrical or is it valves.
I can't but higher rpms. it starts doing it more and more. and like 3-5 seconds rideing with that sound it dies suddenly. i kick it to work and it works. but again after i try to get higher speed it starts doing it again.
2 times the spark plug cap is blown off because when it dies it makes a little sound, like bang.
and when its littlebit warmer i can get like 60-65 km/h like 7 degrees. when 2-3 degrees i cant ride over 45-50.
Any ideas?
Srry, for bad english;D
Thx.
 
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