Ccm 644 carbs flooding when engine off

SOURCE: 2002 honda crf450r starting problem

Hi Smit,

here are some thread that will really be helpful for you and your bike.

http://www.thumpertalk.com/forum/archive/index.php/t-589583.html

http://www.supermotojunkie.com/showthread.php?p=862289

http://www.mototips.com/general-bike-repair/21014-crf450-04-hard-start-cuts-out.html

happy trails,

regards,

voodoo

Murtaza Akberali Versi

• 767 Answers
• Posted on Sep 06, 2009

SOURCE: Carb (Mikuni) flooding on Yamaha Vmax motor cycle

You will have to adjust the float pin of tht particular carb and don't remove them off the rack..just pull them out of the engine and work on the one tht needs attention.
Hope this helps!

SOURCE: can u tell me y they have 2 petrol taps on the 644

one for reserve tank incase run out of fuel and one for normal fuel

SOURCE: Carb (Mikuni) flooding on Yamaha Vmax motor cycle

I had a similar problem. For the float needle there is a seat that it goes into, check this for dirt first, then if no dirt present, the brass part (not the needle but the part it seats into) has an o-ring where it mates to the carb body. If that o-ring is not tightly sealed it will allow fuel to bypass. I found o-rings very cheap at pep boys just take an old one with you to match for size. very cheap too. (under 5 dollars)

SOURCE: yamaha t80 townmate carb keeps overflowing with petrol

Yes, the float or the float needle is sticking in an open position. The only other possibility is a float that has a pinhole in it and has filled with petrol and will no longer float as it should.