derbi senda 70cc

[benjy bwoii]

hello people you might be getting bored of my posts but i have a derbi senda with a leo vince v6 pipe n a malossi 21mm carb and airfilter and im looking to buy a metrakit 70cc big bore kit and my bike wont rev past 10 thousand revs but with a 70cc kit will it and what sort of jetting shall i run witht he standared airbox with the 70cc and what jetting for the airfilter and 70cc thanks people

[Hutchysrs50]

if you have a sports exhaust and 21mm carb, it should rev off the clock...

anyway...

with a 70cc/80cc head you would have to use a 110/120jet
i dont think the jetting should change because you changed the airfilter, just change the carb setup.

they do rev more with big bore kits, but you will have to buy a 14t/15t sprocket to avoide over revving.
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Gilera SC 125 - Current

[benjy bwoii]

cheerz m8 could my ecu have a restricter on it not and with a 15t front sprocket what top speed could i see im hitting a genuine 60 mph now got clocked by my m8s car

[Hutchysrs50]

well..

then the bikes are kitted out well with pritty much everything a 16/ 17 year old would buy, they can reach 78mph...

you will probly be looking around 65 - 70mph.

the big bore kits dont actully make your bike faster... they just give it more torque so you can put bigger sprockets and then... get the better speeds and acceleration
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Gilera SC 125 - Current

[Razz (Derbi Senda 50)]

[benjy bwoii]

cheerz people does any one know why my bike wont rev past 10 and it struggles from 8-10 thousand revs.thanks.

[Razz (Derbi Senda 50)]

well it all depends on how your running it and the setup.

try new sparkplug and give the carb a clean also you could increase the size of the jets !

good luck

[benjy bwoii]

well i have a leo vince v6 pipe on it and a mallosi 21mm carb with airfilter but when it gets to 10 it will just sit there wont rev no more could it be due to the pipes power band set up.thanks.

[Razz (Derbi Senda 50)]

there could be a restricter in the end can.

[benjy bwoii]

i have taken the end can of and looked down it there is nothing i can see.thanks also would a metrakit sp 70cc be a good upgrade and what bhp could i reach with reliablility.thanks.

[B10Hazard]

most 50 cc bikes i know of dont rev past 10 maybe 11 thousands revs anyway, rs 50's, gpr, etc. Thay all have the same engine anyway. So without boring out your engine i dont think you will get more revs.
My bike doesnt have clock's but i could tell after boring out my engine the revs increased slightly.
good luck
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[Razz (Derbi Senda 50)]

hello
i was wondering if anyone could tell me how to get the fork seals off thanx

[radeshki]

ermm.. what do you guys think of getting a powerforce 70cc cylinder and head for a derbi senda 2004 would it fit ...?

URGENT!!!!
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radek

[hadden]

why is it urgent?
it will fit but if you start trying to upgrade a 50cc then you will find after spending hundreds on a few parts,you need more parts to make the original parts work.it can turn into a big chain of money..is it worth it for a 50cc??
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