Carb not responding to adjusters...

The engine idle is too low, its always bogging down no matter what I do with the carb.
What could be the problem?

Carb is original (17.5?) on typhoon 2006

Thanks.

 

what size main jet you got?.. and whats been done to the bike?

 

Carb is original so I guess the main jet is 70? The bike has 70 sport pro mk2 kit with pro replica exhaust for now...
The problem is it did the same thing before the upgrades.

 

have you not changed the jet since upgrading it?..

 

^No, what jet size would you recommend?

 

erm well put it this way.. i had a 56 jet in mine when the bike was standard.. i put a 60s kit in mine and put a stage 6 race pipe on and i went upto a 70 jet.. its a little to big tho.. so you need to find out what has been done to the bike and what the orignal jet size is and tell me..

 

Jet is 65, the bike have stage6 70cc kit with stage6 race pipe.

 

erm personally i would put a slightly bigger jet in but that does sound about right.. im really not to sure

 

Not responding...Any ideas what to do? :/

 

tbh i really am not sure with that, never had that problem with mine :/ im not sure what to suggest..

 

have you cleaned the carb out. best bet would be too take the float bowl apart remove and clean the jets and clean the carb out the best ou can. I use wd40 sprayed through all the holes etc to clean it out

i had a issue with my runner bogging and cutting out and only wanting to start on full throtle. Turned out to be a blocked pilot jet

 

You need to find out what has been done to the bike and what the orignal jet size is

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yeah you wana make sure the carb is clean.. tbh i wouldnt use wd40 coz its not great with fuel and you may have a fuel starvation problem for a few days..

 

fuel starvation for a few days? you spray it throughout the carb and then wipe it down, the amount left will be pretty much nothing. Pop the carb together and kick it over a few times til it starts.

I did squeeze my fuel pipe to the carb and kick it a few times to prime the pipe again but thats just being ott

 

Mine was doing this, it was the idle jet. Don't forget that a sport pro kit and an exhaust is still gonna need more fuel even at idle. Go up a size or two on the idle jet, this will free up some adjustment with the air fuel screw.

When that it set up right, you may find that the idle screw actually makes a difference

 

Allways use carb and choke cleaner for your carbs and blow through with an airline. WD40 contains parrafin and it can damage rubber seals.

 

agree with the above not ideal. but we use what we have to hand haha

 

I have cleaned it with carb cleaning spray and still nothing changed, I think something is fucked with the carb so I ordered new one.

 

Ok guys the new carb is here, it's motoforce 17.5 with 65 main jet. Should I upjet it to 70?
The typhoon running 70cc sport pro mk2 kit with pro replica pipe and polini variator.

Thanks.

 

i would use a 70 but try it and see how it runs then check the spark plug and see what colour it is ( if its light then its runing lean and needs up jetting )