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yamaha aerox problem

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dave36
Renault 5 Driver



Joined: 21 Aug 2010
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PostPosted: 16:26 - 15 Jan 2012    Post subject: yamaha aerox problem Reply with quote

have a aerox 50cc, changed piston and rings ,new plug, new battery, new stantard exhaust, cleaned the carb in parts washer and blew it out with air line so its spotless, fresh fuel init, starts straight away soon as put full throttle on it dies any suggestions
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at106
Brolly Dolly



Joined: 16 Jul 2011
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PostPosted: 16:33 - 15 Jan 2012    Post subject: Reply with quote

Is the choke on and have you let te bike warm up? Also is it jetted correctly and is the air mixture screw set to factory specs?
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dave36
Renault 5 Driver



Joined: 21 Aug 2010
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PostPosted: 16:41 - 15 Jan 2012    Post subject: aerox problem Reply with quote

ticks over lovely had it running idle for half hour so well warmed, has manual choke, never touched the jet settings, would clutch have anything to do with it
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Martay
World Chat Champion



Joined: 20 May 2009
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PostPosted: 16:51 - 15 Jan 2012    Post subject: Reply with quote

Doubt it is a clutch causing the problem, it certainly sounds like a fueling issue.
Is there an air leak between the carb and cylinder? With it idling, spray some WD40 or simmilar flamable subtance around the intake. IF the revs change then theres a leak.
Did you put the float back in correctly?
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st3v3
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PostPosted: 18:11 - 15 Jan 2012    Post subject: Reply with quote

As above, sounds very much like a fuel isssue.
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Clutchy
World Chat Champion



Joined: 08 Nov 2011
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PostPosted: 18:47 - 15 Jan 2012    Post subject: Reply with quote

As said, sounds like a fueling issue, however it wont hurt you to check to see if the air box (where the air filter is housed) is properly connected or just hanging off, i had this problem, as soon as i used any revs it would bog and cut out, not sure if its the same lay out on a yam but definitely worth a try, or the tube out going from the air box could have perished, or as stated most likely disconnected.
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razzamaytee
L Plate Warrior



Joined: 16 Jan 2012
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PostPosted: 04:50 - 16 Jan 2012    Post subject: Reply with quote

did you find the problem out because i am having the same problem but with a yamaha aerox 100, i was just riding and it started back firing and then cut out, but now it start but asoon as i throttle it, it dies out and wont start up again for about 5 minute
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dave36
Renault 5 Driver



Joined: 21 Aug 2010
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PostPosted: 07:22 - 16 Jan 2012    Post subject: yamaha aerox problem Reply with quote

float is is correct.. all tubes are good, air box is on right not loose at all, i,ll try WD40 today see what happens
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dave36
Renault 5 Driver



Joined: 21 Aug 2010
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PostPosted: 22:29 - 21 Jan 2012    Post subject: aerox problem Reply with quote

tried WD40 around intake revs didn,t change.. its reving all the way on full throttle then dies off then revs full again and dies off keeps doing this, thinking it could be running to rich
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Clutchy
World Chat Champion



Joined: 08 Nov 2011
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PostPosted: 23:59 - 21 Jan 2012    Post subject: Reply with quote

LONG SHOT but the gasket on the head might not be sealing properly, i had a similar problem regarding this today.
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*33 BHP restriction up on 10/12/14* Current bikes/car: SV 650 S/ MKIV GOLF
Guide to pass your test with no lessons!
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Martay
World Chat Champion



Joined: 20 May 2009
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PostPosted: 02:29 - 22 Jan 2012    Post subject: Reply with quote

Its fueling, 100%.Fuel is being restricted so the fuel bowl is not filling quick enough.
Next check would be the fuel tap. Remove the fcuel pipe and vacuum pipe from the from the carb and suck on the vacuum one. Fuel should flow quickly out the other, a trickle is no good.
Also try running it with the filler cap removed, a breather could be blocked.
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martyn279
Derestricted Danger



Joined: 21 Jan 2012
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PostPosted: 12:07 - 23 Jan 2012    Post subject: Reply with quote

it deffently sounds like a jetting problem mate try buying a set of jets and swapping and changing till it runs hope this helps


matyn
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pzeppieri
L Plate Warrior



Joined: 14 Apr 2012
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PostPosted: 16:42 - 14 Apr 2012    Post subject: Reply with quote

well buy a 72 jet just incase that is the problem and then make sure that none of your pipes are being restricted, for instance if you have taken all your panels off and your seat box when you put them bk on they could be restricting a pipe. check that your air box is on tight and with a little clamp and that the carbreta is screwed on tight.
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