This FU*KING AEROX!!!

Polini corsa 70cc

 

Stage 6 Quick action throttle
Polini Corsa 70cc kit
Pm tuning Full circle racing crankshaft
Hebo manston racing exhaust
Polini super speed 9 roller variator
Polini 3g clutch
Polini belt
Stage 6 drive face
Malossi Primary and Secondary gear up kits
Polini reeds and inlet
Delorto 28mm Carb
Manual choke
Malossi air filter in the box
Athena unlimited cdi

Premix running 25/1

And i will be getting a new spark plug shortly!

 

25;1 is way too much oil, it will probably run alot better on 33;1 or maybe even 36;1- Stage6 recommended 33:1 for my sport pro mk2 so a corsa should need no more, infact it won't need as much.

That carb is too big too, especially with the stock airbox. Most decent mid-race kits will not need more than a 21mm carb, so the corsa would really be fine on a 17.5mm or a 19mm.

 

Thats how i brought the bike mate, the person I have brought it off is awful at mechanics just by all the rounded bolts scattered over the bike... But i will change the mix if you think it will make it run better

 

yeah mate definately needs less oil. I'd try and find a 19mm or 17.5mm carb though, will run so much nicer

 

what size is the standard aerox carb? I have one of them stashed somewhere haha and okay i will change that when i get it running again... Makes my oil last longer aswell castrol is so expensive!

 

Standard size is 12mm which is a too small but would probably still run smoother, and be easier to set up.

Have a look on pedparts, they do some decent 17.5's and 19's pretty cheap

 

mate a 12mm carb on a corsa kit would probably seize engine !!!

 

If i was you i would change it all back to stock 50cc, A mate of mine has a highly tuned NRG Power DD with a 50cc kit and it does 84 MPH on a Sat Nav, so........... its not really about the engine cc its all about the gearing and torque. Alot of people say thats wrong and the engine will seize. NO because a 50cc And cdi will only work to a certain Speed and revs therefore it will not seize, he has had his bike for 3 years. Always ragging the shit out of it and not once has it broke

 

Then again when you know wat ur doing its fine

 

However if you are looking for a carb here is one to look at. I will link 2 DIFFERENT MODELS AS IT DEPENDS ON WHAT YOUR BIKE IS NORMALLY RUNNING WITH. These ones are PERFECT For 70cc sport kits as stated in the description. http://www.pedparts.co.uk/product/123/175mm-yamaha-aerox-carb-phbn

http://www.pedparts.co.uk/product/122/aerox-carb--175mm-phva

 

I dont have any of my stock 50 stuff though so would cost money returning it back... I will take note on the carb though it does seem awfuly big haha and thanks Jonnymarrw00t i will covert it to that ratio from now on​

 

running polini corsa 70cc... Right i just changed plug and still no joy what could this be?

 

well im running it on a BR8ES and it has always ran on that fine and the same as my 25:1 ratio i cant see as to why it would suddenly stop working

 

Your all forgetting the most crucial parts ! Get yourself a voltmeter and a workshop manual or find a video on youtube which will help you diagnose if any of your electrics are fucked. If your stator plate has burnt out or a faulty CDI or even the ht lead or cap. Seriously its not just about the engine etc. Every part of the electrics need to be checked. Even if the woodruff key inside the crankshaft bar is broken that will cut off the magnets to the stator and will not allow the bike to start. OR check your oil seals around the crank. They are only 2 and are around 5 pounds to replace but is abit tricky to fit them. If they have an air leak the bike will not start. Also they are placed behind the stator plate and one behind the variator. Make sure there is no leaks because if there is IT WILL NOT START. REMEMBER 70cc kits put alot more pressure on the crank and Seals. Honestly check them and replace them. with them only being around 5-6 pounds its worth it because they always break. after all there only rubber. Good luck

 

I give up now jonathan i have come to the end of my tether im just sending it to a garage... Im not too good with electrics and im just up to my neck in stress so i will just let them sort it i have been out all day trying with no luck the most i get it a slight grumble and thats it no real revs

 

Ok mate fair enouth, I cant remember what you said on the earlier posts, did you say you have replaced the engine ? cause if not then thats your problem, but if you have then yeah your electrics should be checked