Nasty bogging when trying to take off

[bennell09]

i gave the bike a good clean on saturday and while i was at it i whipped the carb off and gave it a good flusing out with carb cleaner. while i had the carb off i adjusted the float hight because it was flooding from the overlow spout then removed the carb boot and reed block to clean the bits of crud that were on them, fitted a new gasket to replace the tierd old one and reassembled. on sunday morning the bike fired up first kick as normal and ran fine once warm. parked the bike up overnight at the girlfriends and watched for the overflow. a little fuel come out but this is because of my fuel tap isnt fully turning off when in the off position. anyway, this morning the bike took forever to kick up turning over for a split second then shutting off. i managed to get it going by giving it some revs untill it was able to idle of its own. on my way to work the bike ran like crap. starting from a stop i have to give the bike some beans or it just bogs down and stalls? whilse over 5k the bike runs good and the powerband is strong but the throttle feels heavy and resistive to be twisted easily? and to top it all of my headstock bearings have gone (steel ball bearings) and on wemoto it shows taper roller bearings can it be a direct replacement?

[Pete.]

[bennell09]

[Pete.]

Leaning the engine by lowering the float height isn't a great idea on a two-stroke. Leaner mixture means more heat and too much of that means a seized engine, usually at speed.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[bennell09]

[Pete.]

Yes, lowering the fuel height by bending the tab up will lean the mixture across the board.

Do you have a manual for the bike so you can check what the float height should be? Usually it;s measured by tunring the carb upside-down and taking a measurement from the carb body at the float bowl sealing face to the highest point on the float, and check both sides are equal.

If it's over-flowing after setting the float height then you should look at the needle to see if it is grooved where it seals in the seat. This can be fixed by opening the hole in the seat a little so that it seals on a wider part of the needle taper and then re-setting the float height.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[bennell09]