Shreds 94' YZF600R (She lives! Need some running help)

[shredex]

smoking stopped.
the rpm needle goes from the idle of like 1.5K then jumps to 0 and then jumps to 8K, then back to idle but the bikes actuall RPMs stay at idle...the needle is possest.

she holds idle...if I give her any throttle at all shes goes plump and dies...if I try adjusting idle screw, she almost dies and idle screw doesnt seem to effect idle at all.
if I take it off choke she bogs down and dies....


im letting her run for awhile.

head pipes 1&2 are good around 400degrees, but 3&4 are about 135 ...they have good plugs in themmm....


im gonna let her cool down then change the plugs in 3&4 and then try again

[sweekster]

Might want to play with with adjustment screws (pretend you are synching it). It's probably just rich.

[shredex]

Might want to play with with adjustment screws (pretend you are synching it). It's probably just rich.

I didnt drill out the brass caps while I had the carbs off.
I was hoping that they would just be set right...
but then again, I dont think the bikes been started since it was moved from kentucky

[shredex]

put new plugs into 3&4 but still reading only about 115 degrees...i dont have a multimeter to test the coils but I might stick my fzr coils on it and try again

[sweekster]

No...see the pic below? Those screws. In between the carbs.

[shredex]

oh the sync screws....yea, I didnt mess with those...but the two cylinders are still only at like 115 degrees.

[sweekster]

Don't get ahead. Get it to idle and run and then tune it.

[shredex]

it idles and runs...its just that head pipes 3&4 are in the 100-150 degree range...

[shredex]

you know, for running on two cylinders...she runs pretty strong

http://www.youtube.com/watch?v=mLjggjOSSEA


possessed RPM guage
http://www.youtube.com/watch?v=K-UxE3vrUVg




the reason I post link and youtube incoded one is because I cant view the vids posted with the youtube link button we have on the forum.

[haro504]

my car was just doing that the small filters in the fuel pump were cloged so i was lacking fuel alittle different cause of the fuel injection but mine was a fuel problem. it ideled fine but when i touched the pedal it died

[shredex]

well, when I run the bike I use my fzr tank and fuel pump/filter so I know thats not the problem...

[haro504]

oh i dident mean the filter i ment the lack of fuel i would assume that it stays running cause with the chock on to reduce the air mixture with the fuel compensating with the reduced fuel flow and when you open the throttle it gets more air then fuel and dies do all the float bowls fill with fuel . are you able to get it to rev up if you give it quick throttle burst open closed open closed

[shredex]

theres fuel in the float bowls. I think its clogged jets...they were pretty bad when I tried cleaning them...actually had to get some sand paper to scrap off gunk...so maybe just needs better cleaning

[haro504]

thats probally what it is if your carb are filling and you have spark but with no temp on the exhaust then i would say the jets are cloged assuming theres compression you could just put your hand on the carb to feel for vacume. hey next time you check the temps could you see what the temp is where the header meets the head on the head side i wanted to know if it gets over 500 degrees cause of the paint i used on my engine

[sweekster]

It sounds like all 4 cylinders are firing to me. I'd clean all the jets one more time for good measure and I'd synch it since you can at least get to idle.

This link should help with the synch part. I have a feeling that it's really rich and the white smoke is unspent fuel but that's just a guess.