Heating up chain gear on engine?

And the crowd roARS LOUD! :laugh:

Success is mine. Fricken Finally!
I just wanted y'all to know that stubborn 32mm nut finally let go. I went out and bought a cheap-oh electric impact gun from HFT and some 1/4" hardware to bolt-up the chain as mentioned by Dave and Ed. I was supposed to be working on my outta control lawn but just couldn't get my mind on that until I tried:



It seriously took about 15 seconds of RATATATATATATATATAT on the impact gun and then finally VRRRRZZZZZZZZ! Off.
What's crazy is the impact socket is 6 point and it loaded-up on that nut so much that the left edges of the nut, all the way around, were depressed. Fricken thing spun on easy with just my fingers after I pulled the worn-out gear off:



So. Case Closed! (Gavel slam).
Now I can finally move-on and pull the engine outta the frame for some cleaning and painting! :woohoo:

Once again gentlemen. I wouldn't have succeeded without your guidance and moral support!

I know that felt great when you felt the nut break free! Ed

Like a smoke after a good romp in the sack. :woohoo: You need new sprockets and chain.
Steve

Lmao! Yes. I'll deny this to my grave but i think i may have had a bigger smile on my face from the rush of succeeding with this dang gear coming off!
And yes, i already got the new gears & chain. I got stock gears for now (16/42/102 links) BUT i did wanna chat you guys up a bit about possible alternatives like going 17/40 perhaps. I know the subject has been discussed ad nauseum on the forum but i am more interested in personal experiences as opposed to technical specifics & possibilities. Like is it worth diddling with this at all?
But later I'll bring it up in the KZombie thread to keep the story in one place.

The SPROCKET change will make a difference. What are you Taching at speed?
Steve

The KZ650 with 16/42 sprockets runs 4500 rpm @ 60 mph; 9000 rpm (redline) @ 120 mph. I've always found the stock sprockets to work exceptionally well on my KZ650-C1. Ed

Well, i've never actually had KZombie on the road yet so all i've got is that web site (sorry on my ph now) i think it"s gear commander?
My reasons were:
- even on my 550a, i find myself searching for a 7th gear
- Average highway speed here is 70 or 75
- KZombie is a 650 so only 5 gears.
These combine to make me assume I'll wanna go non-stock with chain gears.

It's a trade off. I'm at 55 at 3500, 70 at 4 and 80 at 5000. Lose some on take off but I ride HWY anyway.
Steve

Keep in mind that the KZ1000 produces about 50% more power than the KZ650 and has a different power curve. The KZ650 makes 64 hp at 8500 rpm, but at 3500 rpm it only makes about 23 hp. So there's a reason the rpm are fairly high at highway speeds. Ed

Steve since you should have a 630 chain your tooth count is not the same as 530
at the same gear ratio.

Good job on the nut and I think you'll probably need that impact again anyway someday when the starter clutch goes (hopefully a long ways down the road)......

I agree with Ed on the stock gearing...... I've gone with a 15T front for a few hundred miles here and there just for the power down low it gives but is too much for cruising and had a 41T rear for a long time to help tame the high way rs but it only made a very small diff ..... maybe 150 rs less......... a 40T would make a little more diff but then it starts eating into those hole shots. :woohoo: A 17T front and 41T rear really killed low end and only had that on for a few days..... as you can see I went back to stock even with the hop ups ..... but you could always pick up a 17T with the 16T and see what you prefer for half way cheap.

Just wanted to add be sure you have the locking washer installed don't see it in the picture but that doesn't mean you didn't have one (could be the reason it was so tough though.... maybe he did use loctite instead).

zukdave wrote: Steve since you should have a 630 chain your tooth count is not the same as 530
at the same gear ratio.

I was using mine as a example. One thing though. If I went back to stock I'd be burning up my back tire faster than I am now. I have to buy one every 4-6 months.
Steve