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welded crank
- ricerocket
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Any thoughts?
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- oldkaws4ever
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- Have no regrets...... You only live once.
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74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois
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- ricerocket
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- oldkaws4ever
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- Have no regrets...... You only live once.
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74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois
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- oldkaws4ever
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- Have no regrets...... You only live once.
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- Thank you received: 12
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois
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- oldkaws4ever
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- Have no regrets...... You only live once.
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- Thank you received: 12
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois
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- racer54
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1980 LTD (changed over the years), 1979 LTD (being rebuilt), 1977 KZ turbo and various KZ's in various states of build. KLX110
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- modprod
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I* was told today if i put a welded crank in my kz1000 it would be good for anothe 1000 rpm.
Any thoughts?
A stock motor is past being done making it's best HP by about 9000. Welding only helps the crank throws stay aligned but is a non-factor in the stock engines ability to make usable power past 8500-9000.
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- CruisingRam
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1975 Z1 B 900- soon to be heavily modded
Pahoa, Hawaii is my new hom
I am working hard to save up the shipping money to get my shop opened here in Hawaii
I hate electrical stuff.
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- PLUMMEN
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if you are go to all the trouble of pulling it all apart to weld the crank why not just stick a welded 900 crank in it ?are you sure your crank isnt allready welded?Actually- there is no way for a welded crank alone that would make an engine rev higher- the welded crank makes it live at higher RPMs, but it really has nothing to do with the engine making higher rpm, that is a function of air and fuel being able to enter and exit the engine. So, more cam and better ported heads will allow you to hit higher RPM, a welded crank may make the bottom end live a bit longer.
Still recovering,some days are better than others.
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- donthekawguy
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Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
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- CruisingRam
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Really, these bottom ends are pretty bulletproof in the mild-stock area, it is, as it has been said, when you put a hard shock on the crank, like in drag racing, as mentioned, or when hard core road racing, where hard down and upshifts are really loading things up, and jerking the bike around.
I made the switch from cars to bikes only about 2 years ago, as in total focus, I have had my bike since 83 or 84, can't remember which summer- and am lucky enough to have hooked up with some old kawi racers here, got some of thier cast- off parts now!
I have never back-cut the gears either- but I will be learning to do that soon- with some help from an old pro.
But the welded crank is really for longevity and reliability- and great, cheap insurance while you have the motor apart anyway.
If you dont plan on drag racing or splitting the cases anyway, i wouldn't bother.
1975 Z1 B 900- soon to be heavily modded
Pahoa, Hawaii is my new hom
I am working hard to save up the shipping money to get my shop opened here in Hawaii
I hate electrical stuff.
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