Well here's my FZR For anyone who hasn't seen my introduction thread I picked this up about a month ago. This is how I received it. All the fairings removed and a box of bits and pieces. Thankfully it looks like it's all there. It's possible the K's are genuine. both the tyres are dated the year 2000. PPSR check didn't even come up with any info and after a call to vicroads with them searching the archive found it hasn't seen the road since 2004! Overall she's in pretty good shape. There is surface rust all over the frame but nothing terminal. Sometime down the line I'd like to strip it down and really go through it but for the short term I'd like to get everything mechanically sound and get some seat time. The bloke I got the bike from hadn't had it very long and told me the guy he got it from had gone through the carbs. After pulling them off though it looks like he did little more than pull them apart, clean and break/lose bits in the process :'( Throttle plate for no.1 is bent Rubber parts are in great condition Screws that aren't stripped are just straight up missing Float bowls full of dirt/grit Overall a bit of a shtshow. No worry though, picked up another set of carbs and a bunch of goodies to help the process along. Still waiting on some other stuff to arrive but hopefully It'll be running nicely within the next couple of weeks.
They're the Kiwami ones off Yahoo shopping. Though they're absolutely the OEM part in a different bag.
Looks great. Nice to see one of these rare beasties. If you need them, we have all of the seals and gaskets that go in between the carbs. Then you might be able to save the original carbs as well and keep them as a spare set. https://litetek.co/Carb_Kit_Yamaha_FZR250_2KR.html A little bit of steel wool on the rusty frame areas and touch up with some spray can will tide you over. Tank is missing cap surround but I guess you are aware of that.
Have both of your seal kits on the way as well. I do have the tank ring as well as the mirrors, rear indicators etc. Once I get it running nicely I'll do a proper clean up and reassemble.
Goodo. Here is our guide for BDST carbs. A little different to the carbs used on the 2KR but still useful. https://litetek.co/Guide_MikuniBDST_Rebuild.html This guide for Keihins shows an optional way to stake the screws. https://litetek.co/Guide_Keihin_Rebuild.html
Pulled the carbs apart the other day. Haven't done much more all weekend apart from taking some photos of the toys As you can probably tell, absolutely love Japanese design and build quality from that mid 80's-mid 90's Bubble economy era.
Alrighty guess an update is in order. So like I'd said I pulled the new carbs down a couple weeks back. When they arrived they were crazy gummed up, all the plungers, floats, throttles were stuck solid. Spent some time with the heat gun softening up the varnish until they moved somewhat freely then hit em with some carby cleaner. Pulled my old split intakes off and replaced with the nice soft new ones. Good to see the intake ports are all nice and clean. New china fuel pump arrived so that was fitted. The old pump worked but it was very noisy. Pulled the tstat housing to find.. umm... Gross, I cleaned up the thermostat and surprisingly it works fine and the seal is good so I'll reuse that for now. Also spent a little time tidying up the original windscreen. It's not 10/10 but a 30 year old piece of plexiglass was never going to be anyway. Finally back to the carbs. With the Litetek seals and new diaphragms arrived I set about reassembling after a tonne of cleaning. I'm pretty wrapt with how they've turned out. Everything feels perfect and smooth. Worlds away from the old butchered carbs. As you may notice in the last pic one of the plungers is missing. Unfortunately the diaphragm was assembled incorrectly which left the plunger on a weird angle. After some back and forth from the seller I've got another one on the way. Pretty frustrating though, just want it running already!! Edit: Almost forgot, was down at the Geelong Revival on Saturday and saw this lovely fizzer in the pits. Unfortunately didn't get to see it race though.
Nice work Have you removed and cleaned out the radiator and the waterpump and hose's ? i've never seen a thermostat housing that gunked up inside The Carby diaphram's should be able to rotate on the slide's ?
Yep definitely going to go through the rest of the cooling system. Surprisingly though the tstat housing seems to be the worst part so far. All the pipes and hoses were completely clear. Diaphragms definitely don't spin, nor do the original ones. They've got that plastic ring pressing them into place.
Carried out some more work. Cleaned up the tstat housing, got a little carried away with the wire wheel Pulled off the waterpump cover for a bit of a look axs well as all the other hoses, pipes and the rad. Nothing anywhere near as grotty as the thermostat was fortunately. More excitingly spent Sunday cleaning, stripping most of the bike down to the frame painting and getting to some proper reassembly. I'll get to the swingarm when I get to replacing the chain and tyres. Replacement diaphragm has finally landed in Aus too so with any luck I'll have her running before the weekend
Looks like the fizzer will be on hold for the moment . Had some bad luck with the radiator. Copped heavy corrosion in one corner. Got onto a good one and thought that was the last of my dramas then decided to do a compression test. 60psi in cyl 1, 50psi in cyl 4. shoved some oil down em and it's rings so looks like I'll be rebuilding the motor. Priced up some used engines and it looks like it'll be more cost effective to rebuild and then I know exactly what I've got. For now at least I'll be looking to get into something that needs no work, pretty keen on a VT250 Spada and there's a few around for reasonable money so that'll be my new addition.
Oh that's a shame. But on the plus side, you do the engine yourself and you know its good. Plus you have done a nice job with the rest of the bike, so it will be worth it.
Well timing just happened to be right and I ended up picking up a parts bike with a good running engine today. It's a 3HX1. Pretty rough cosmetically and has been dropped on the LHS so the shifter clutch lever etc are all bent. Unfortunately it has aftermarket fibreglass fairings too. Should get the Nescafe bike back to roadworthy condition a lot quicker This ones been off the road since 2002 and sitting outside so I'm amazed at how well it runs. Idles smooth, throttle snaps clean. Carbs are leaking but that's not an issue as I've got the freshies I already put together. I'll probably just clean these and chuck the extra seals leftover from the keyster kits through em. Pretty excited now.
