1997 Yamaha yzf1000 Thunderace

[Oldman99]

Went for a ride down to the lake area and found a public access for boats. I like the bike so far. Getting used to the clip ons. I'd like to go from a 17 tooth front sprocket to a 16. It's hard trying to do the speed limit. It will easily do 45mph in 3rd and feels weird.

[GS1150Pilot]

That thing looks cool, though I wonder whether you meant 145 in 3rd.

[Oldman99]

I dont lug it really, but I dont like to rev it too high either. Highest speed limit near me is 65 and she does that in 4th gear at like 5000 rpm.
I dont have a need for anything over 80mph, so why not back it down a little to make the available gears more usable?

[Oldman99]

So I did the spark plugs today. I really thinking someone in this bikes past did not change two of the four plugs because #3 and #4 are hard to get to.

[roeme]

Yuk. At least the electrodes look healthy.

[Oldman99]

Took the carbs off today. Ordered all new rubber for them and they finally showed up.
It's easier to start cold and seems to run better, but I might be a little biased.

[Oldman99]

Got tired of the tear in my passenger seat getting hung up on my back pack.
Did a half-arsed repair.
The adjuster on top of my fork looks to be ground down from a crash/ sliding down the road up-side down. I can only assume the pass seat got messed up the same way.



Some clamps and steel tube with a heat gun to put a crease in to hide my horrible stitching.



Complete-ish. I need much shorter staples. I'll pull these out and fix it later. Maybe...

[Buffalo Bill]

I like your project of course, not so different from my 7-11 Katana.
Mine is so fast, want's to be ridden so hard, it only feels normal on a race track.
Had it up to 130 no problem, with plenty of room to slow down for the next corner.
Still only average compared to other bikes on the track.

[Oldman99]

Thank you.
I was considering a different sprocket set.
Stock is a 17 x 47 with a 532 chain.
The speedo runs off of the front wheel so that won't be an issue.
I want to say if I switch to a 15 x 48, it will have a lower top speed, but will have better acceleration. Right?

[Buffalo Bill]

I looked at all the possible gear ratios I could use, but came back to what the Suzuki engineers chose, 15-48.
My engine is a 92 GSXR 1127 with the highest lift cams they put in those engines. A tweak one way or the other would not matter a bit, it has the highest torque figures I've seen.
I think getting clever about gear ratios is something you only need to do for small displacement engines.
Are you using the Gearing Commander site to help you?
Gearing Commander.com

[Oldman99]

Yep, Had that site bookmarked for a long time.

[thebrandonbeezy]

I really like this, i just picked up a 93 fzr1000 with the ex-up set up. Im wondering if its the same as the yzf?

[Buffalo Bill]

I really like this, i just picked up a 93 fzr1000 with the ex-up set up. Im wondering if its the same as the yzf?

I know it has the same function, and if you take it off the bike, you've f_cked it up bad.

[GS1150Pilot]

I removed the EXUP from my FZ1 when I mounted the first Holeshot header made for that bike along with his exhaust canister and an Ivan's jet kit with K&Ns. Bike ran flawlessly.

[Oldman99]

I really like this, i just picked up a 93 fzr1000 with the ex-up set up. Im wondering if its the same as the yzf?

I think the engine is the same. Some burn oil and some don't. It's weird like that.