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77 KZ1000 resurrection
- toecutter1974
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- arai59
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- toecutter1974
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- timebomb33
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1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
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- toecutter1974
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- timebomb33
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1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
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- Patton
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Well, she is running, but awful smoky... I was hoping to make it through the summer before tearing apart the motor but I think I need at least valve seals, and maybe rings. Pretty good time to learn how to adjust the valves as well. So I am going to order a gasket set, and do it up. Any advice for a 1st timer tearing a motor (non two stroke) down?
Before tearing down a 20K engine or fiddling with the carbs, I would first do the basics: change oil and filter; perform compression test; check and adjust valve clearances (perhaps first time ever for this engine); perform another compression test; perform leakdown test; visually inspect quality of spark on business end of plugs; clean and gap points (if still so fitted); check and set ignition timing with a strobe timing light and verfiy that advancer unit is functioning properly; drain and flush fuel tank; remove, disassemble and clean petcock; install new inline fuel filter; measure voltage reaching coil primaries; assure good clean snug wiring connections, battery cable connections at terminals and negative cable connection where it attaches to the engine or frame; remove and clean the crankcase breather; install brand new sparkplugs.
Much of the oil burning is likely due to hardened valve stem seals, which usually is worse until the engine warms up some and then diminishes. Sometimes reduced somewhat by parking on centerstand instead of sidestand to avoid oil accumulation around leftside under valve cover.
Test run several miles for effect, and then some attention to carbs will probably be necessary. First, check service floatbowl fuel levels using the clear tube test.
Bottom line -- these bikes are tough old birds that can withstand a lot of abuse. And 20K is typically way too soon for an engine teardown absent severe abuse and non-maintenance. Maybe the 20K has done enough damage to warrant an engine teardown. But I would first attend to all the above matters to at least have a basis for later comparisons, realizing that many of then are needed regardless of a prospective teardown.
Just my thinking. But, regardless how deciding to proceed, betcha you're gonna love this bike!
Good Luck!
1973 Z1
KZ900 LTD
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- toecutter1974
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P.S. I've only ridden it about a mile, but I already love this bike!!!
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- toecutter1974
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- toecutter1974
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So, I have been tweaking and tuning, and the old KZ is really starting to come alive. I do however, have to check the valves. I have always preferred to tackle my own maintenance on my bikes, but I have never done a valve adjustment... What will I need? I am planning on:
Valve cover gasket, valve seals (just in case) and...
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- toecutter1974
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This is my 1st KZ, but I have owned many different bikes. I have done quite a bit of clean up, and I am now in the process of fine tuning everything. I checked my compression (not sure if I did it right) checked spark, adjusted the float level (carb #1 was set way too high... that explains the persistant leak!) and I have been taking her out on shakedown runs here and there. Well, my 1st few times, I was a little under impressed with the legendary Z power... I chalked it up to being an older bike, and maybe a bit tired, or my carbs were badly in need of balancing. Long story short, I had a fouled plug, and was running on three cyliners! Took her to work this morning, and wow, what a difference:woohoo:
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- roy-b-boy-b
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It will clean up the top end of the engine and really break down the carbon build up. It is not snake oil and really works for bikes that have been sitting for a while. Roy
1979 LTD Street Fighter.1977 KZ1000
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