Problems!!!

[DeiCide]

G'day all, I've been having a lot of probs with my bike. (chinese CAG) with standard carbie, and 50.177 2piece head kit (with boost port and advanced timing key).
I've had a brand new carbie put on, new fuel line and filter, new fuel tank, new pullstart, new sparkplug, new coil, the timing and carb tunings been checked and no problems found. (all work/parts carried out by Maylands Performance) *More info on it in my sig*

I've had the bike running before but when I rode it, it struggled to get past 25kms/h!! (6-68gearing/I weigh 70kgs) The bike has plenty of compression (you can feel it when pullstarting) I just checked the rings and their perfect, just had fibreglass reeds fit'd as well. its getting fuel as u can see it going through the line (and in the carbie bowl).

I cant even get it to start atm at all (with or without choke) and I've spent way too much on it already. If anyone has any ideas on where to go next or what the problem could be I'd greatly appreciate any advice offered.
Cheers in advance!

[Robbie]

Check your clutch, probably why your not getting over 25kmph.

[DeiCide]

sorry forgot to mention clutch is fine, 1 of the first things I checked.
tiny bit of wear but bike doesnt rev any higher. It went perfect with wheel in the air, clean sharp revs, but once yer on the bike it struggles.

[barnsey]

im havin same problem with a stock cag(only got lighten fly wheel! .. with mine if im riding say walking pace than give it any more than full throttle it just dies but if im holding the back wheel in the air it revs good but withen the nxt few weeks im getting billit 5 port head kit with full circle crank fierglass reeds advanced timing keyway hp carbie kit fatboy 10t clutch springs and quick turn throttle n barings soo ill c wat happns

[Antonz]

This could sound stupid, but I had the same problem and then I relised my back tyre was flat. After I gave it a pump it flew.

[barnsey]

hahahahaha

[DeiCide]

lol, I made sure my tires where pumped up, but thanks anyways.

[chatty]

sounds like some sort of fuel restriction/starving prob to me.

[barnsey]

i thort it was flooding but it never used to do this to mine now it does it seems slower

[mac90]

could even be a leaky crank seal

also i know you have already spent alot on your bike but you should try a genuine walbro throttle response & rpm's will be alot better