Runner 180 very hard to cold start

hi my standard Gilera 180 2t was running fine in summer but now it’s cold it’s a nightmare to start

It starts for a second or two then cuts out I’ve changed the auto choke for a manual as I thought it would be that but it’s made no difference once it’s running it runs like a dream and starts first time once warmed up the plug is only 500 miles old and looks clean when removed please can anyone help it sort of seems like fuel starvation but then I guess it would happen all the time thanks appreciate any reply’s

 

Battery condition? Take the rear bulb out and try that one time and tell me how it goes !

 

The battery seems fine I’ve got it plugged into a trickle charger and it turns over perfectly it does seem easier to kickstart but it’s defiantly not flat would the battery cause this issue ? As I say once warm it’s fine it’s only when it’s cold ?

 

It’s doing my head in but I will try that tomorrow and get back to you

 

Thanks

 

Hi tried taking bulb out made no difference any other ideas

 

Raise the carb slide needle by moving the circlip down one slot

 

The rear bulb trick was to not use 21w power as it drains the battery, as it hasn't altered anything I'll have another think on it!

 

It’s a dellorto phobia 20.5 can you explain in a bit more detail how I find this needle and what exactly to do

Thank you

 

Phvb sorry

 

Unscrew the black top off the carb, lift it out and you'll see a brass needle, squeeze the spring up to release needle. You'll see a tiny "E" clip at the top and notches, with the point down move the E clip down one notch, this will richen the mixture.
Reed petals worn?

 

Hi marsh I did that moved the clip down a notch but it didn’t seem to make any difference it started for a second or 2and cuts
The clip was one notch down from the top so now it’s on the third notch down is that about right ? I’ve got a brand new Ngk br9eix that I’m going to gap and fit tomorrow so il let you know how it goes and thanks for ur help pls let me know about needle position

 

A ngk br9es will be ok, have you checked the reed petals?

 

I’ve only got the iridium plug as was told they last longer will that Ben ok
I’m sorry not sure what Reed petals are please can you explain
Thanks

 

I've just had a thought
This is a 180 2 stroke
It needs very good compression to start properly, around 150psi if i remember rightly.
Get a compression tester, or borrow one if you, and get the compression reading
These bikes will start and run with less, but grudgingly.

 

Take carb/inlet manifold off and you'll see the reed block, small thin sheet either metal or carbon, check for gaps or fraid edges, It's basically a one way valve.

 

Guys I’ve sorted it
New plug br9eix starts on the button
The plug in there was a br8es and obviously that was the cause
Thanks for all ur help it’s been appreciated
One thing though is why did the br8es work in summer but not winter