******* question OKO related

[fane]

hey guys

got my OKO flatside, like every other man and their dog on here - anyway first things first is i want to pull it apart and see whats going on in there - i like figuring out how stuff works.

but i came to a problem where the screws at the bottom a in so tight that i cant undo them without rounding them off - is this normal, i have only tried with a pretty good fit screwdriver, not a perfect fit one so i'll try that this arvo

but i just wanna make sure they arnt in the opposite way for some reason coz they are from argentina or something and they do bolts up the other way there.

anyone else find that theirs were tighter than a nun's vag? the ones at the top came off easy as for the throttle cable

 

[thump*140]

hmm this is the second report of float bowl screws being tighter than a fishes arse in the last week or so..
you have basically three options to get the screws out, one is to use an impact driver, second is to use a socket wrench with a phillips head tip in it, as it allows you to exert more downwards force on the screw...
Thirdly, you can use a screwdriver and a hammer... (in effect a poor man's impact driver)
put the screwdriver into the slot, and tap the screwdriver with the hammer, whilst putting turning pressure on the screw.... a few solid taps might be enough to crack the screw... this method also works well with master cylinder screws..

 

[krazed0451]

You can add me to the list too... Had to vice grip one of the screws out of mine. Fun times

 

[CHINA-RIDER]

I was the first report

If the above options fail

I got a soldering iron and stuck it on the end of the screw and heated it up till it was nice and hot and put some wd40 on it and out it come with almost no effort at all.

 

[fane]

haha jesus that soldering iron idea never entered my mind - nice one

 

[dub_88n]

first thing i would try is getting the PERFECT scew driver, the right tool for the job always helps... a socket with the screw bit in it are great aswell, i know 1 person who used power tools to do this and they needed a new carby after it so i dont suggest that method.... worst comes to worst mate throw something (not of importace of value) against a wall to calm that anger when undoing a FT bolt

 

[fane]

im gonna have a good crack at it tonight - thanks guys

 

[CHINA-RIDER]

haha jesus that soldering iron idea never entered my mind - nice one

credit actually goes to my old man, he told me that after all else failed :action-smiley-032:

 

[fane]

ok good news fellas i tried another screwdriver which felt pretty snug and i cracked one but the other was being a bitch and it rounded a little so i got another screwdriver and cracked it FINALLY haha

anyway - next questions i have

the reason i cracked it is to see what main jet and pilot are

i have a stock 155z dhz with a filter and chain so no upgrades that would play sillybuggers with the mixture

question is, what is the best settings to start at to tune this fker

the main is #100 and the pilot is #36 and the needle is bang in the middle.

ok so here comes the next dumbasws questions

am i right in assuming that the points to tune the carby are the fuel mixture screw and the clip on the needle and the two jets dont get turned, they just get screwed all the way in and you adjust them only by changing them to a different size?

just want to confirm this bit

thanks guys

 

[Cactus Jack]

I've also copped OKO's and other carbs that had bitch tight screws ...

When you undo the first screw , the second screw cops extra tension due to the pressure the crushed gasket exerts on the float bowl , so it's better to nip the first screw back up before attempting to undo the second one ...

 

[Cactus Jack]

question is, what is the best settings to start at to tune this fker

the main is #100 and the pilot is #36 and the needle is bang in the middle.

ok so here comes the next ******* questions

am i right in assuming that the points to tune the carby are the fuel mixture screw and the clip on the needle and the two jets dont get turned, they just get screwed all the way in and you adjust them only by changing them to a different size?

just want to confirm this bit ... thanks guys

Here's a few carb tuning guides ...

JETTING SPECS

Dan's Motorcycle Carburator theory and Tuning

carb tuning

Mikuni carburetor operation and tuning

Dellorto Motorcycle Carburetor Tuning Guides

 

[fane]

oh next question, what gap should my plug be?

 

[fane]

thanks Cactus, will sink some time into reading them up

i think i have it sussed in terms of what to change to fix different parts of the throttle range