Project FZR250 project

Hm well thanks for your research time. I'm thinking I'll use one washer on the spring side and use the stock metal washer on the other. The throttle shaft had never been apart so if it worked for this long... Now I'm going to wait for the kerosene headache to go away from cleaning the outside of em. Do the rest tomorrow

 

No problem will do. Glad the mystery is solved lol. So I've got the learning carbie in one piece, just gotta crack out the dremel for the other 3.

Bit of wd40 really helped on the slightly damaged fuel mix screw threads, good advice can't remember who to credit it to though. Also another useful tip, don't leave an ice cream container full of kerosene somewhere you can knock it all over your leg

 

I was warned these carbs were trouble. So far that's been pretty solid advice.
Throttle plate is bent on number 2 carb. I'm up to reassembly for that one and it wouldn't slide in on one corner. Looked really close and used some calipers, one side is twisted by literally 0.07mm but still won't go in. Whats the best way to straighten it? I can get acsess to an industrial metal folder that has a very flat edge but 30t on one bit of brass might be overkill. Other idea was to sand it by hand a little until it fit, but thought I'd ask the experts first

 

Bit of tapping with some wood straightened it out enough to go back in. Nowhere near as bad as i expected to be honest. I think it was actually bent from use, that shaft has the throttle cable attached to it and the spring is about twice the size. Probably bent it over the years slightly

 

Well its not as shiny as some I've seen here but I'm pretty proud to say the carbs are done, at least for now. Its definitely been a big learning curve compared to a run of the mill dirt bike carb bowl sprayout with cleaner. I'll give her a kick in the guts this weekend, it can't be broken if i don't try to start it...

 

Been a while since an update, got the bike running. Here come the next stage of carbie problems. Starts well on choke but it doesn't like revving past about 9k in neutral. Theres a bit of a splutter around 7-8k and blows some smoke. Dunno what the smoke is yet but theres time for that later.

Fuel mix screw is at 2.5 turns out, took it out to 2 3/4, as it was when i got it, and still got the same problem. Didn't touch the floats so shouldnt be a problem there, famous last words

 

Nope old plugs, but ive taken them all out in the past and they looked good. All sparked. Leads are good as far as i know but I'll check em again

 

No, does this make a difference? The rubber 'velocity stacks'/airbox to carb connectors are on though

Im relatively confident in the jetting sizes, since when i got it going a few months ago when i first got it, there were no problems then. Its been after I completely disassembled the carbies so im hoping theres nothing inside causing the problem

 

Thanks ill chuck the airbox on tomorrow and see how it goes. Might also get some new plugs cos why not

 

Air box seemed to fix the problem. Sadly i cant be sure as something electrical caught fire and blew the fuse, i hope. Any regular suspects to check?

 

I think theres only 1. Tbh I don't know it was the fuse but no lights come on or anything anymore so i assume its that. Bike revved, lost spark for a split second, smoke came from between the engine and airbox where the wires are, then died