[wookey]

HELP! I i've just bought, what I think is a 305, but really not sure and don't know how to tell.
The problem is that it starts on choke but the runs erratically, revs quite high and then cuts out unless I can give it a bit of choke. I't's been stood a few years. Can anyone help? Does anyone know how many 'turns out' the slow running screw should be? Any ideas??
Wookey

[bambam_n_chunx]

Have you given the carb a good clean out. With it being stood a while the chances are the pilot jet has been blocked up by the fuel going off.
This a common problem and once cleaned out the bike should run somewhere near. Screw should be around 2 turns out.
Good luck.

[wookey]

Mmm, thanks, I'll try that. Any idea what grade plug it should have?

[DMCK_FANTIC]

Save or print these, 305 info sheets, http://s292.photobucket.com/albums/mm22/fa...c5seriesmanual/ I have my air screw out at 1.5 turns on my 305.

[wookey]

Brill, got that. Will print them off. Forum is excellent, wouldn't know where to start otherwise

[NZRalphy]

Also check that the inlet manifold is not cracked or perished - it can give similar faults

[gtgasgas]

Carb is clogged the only reason it runs on choke is that its letting fuel in to the carb. Clean the carb and change fuel line, I had black hose do that exact thing on a 305.