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Exhaust System
- mtbspeedfreak
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One of my 4-into-2 exhaust mufflers fell off; now it truly sounds like a "muscle bike" for sure. I had been eying up a 4-into-1 exhaust system for quite some time now, what you you guys recommend? I'm riding a '76 KZ 900: the carbs are jetted, but fouls plugs more often than I'd like so I need to rejet it regardless. I have a K&N airbox filter- not the individual pod filters. No other internal engine modifications have been done.
I'd like to emphasize that ride this bike- I've tacked on 10,000 miles since June 1st, so I'm looking for a system that not only performs well and looks good, but holds up on multi-day, thousand-mile trips over the hills and through the woods.
I'm thinking Kerker or Vance & Hines, but open to nearly anything.
Thanks in advance for your recommendations! I appreciate your advice.
-Mark
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!
If it has tits or tires, it'll give you problems!
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- TeK9iNe
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- What did you do!?!
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V&H are good for some mid-high end grunt, better for street and all-around riding.
The Kerker pipes tend to really scream up high in the rpms, not as much notice in the mid power.
your choice really, as I believe they will all hold up for very long, if well maintained.
Good luck.
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
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- Mcdroid
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- Gone Kwackers
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EDIT: and just about any brand ever produced pipe-wise is available on eBay as used...patience will produce some amazing finds...i.e. Yoshimura...Bassani...Hooker, etc.
Michael
Victoria, Texas
1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A
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- KZ1979LTD
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- Patton
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would first assure:
-- full battery voltage reaching coils;
-- properly timed fat blue spark;
-- correct valve clearances;
-- correct fuel level (clear tube method);
-- freshly serviced air filter;
-- pilot air screw adjustment (try slightly leaner setting);
With 4>1 exhaust system, existing jetting might be okay.
Considering mileage being ridden, and oil/filter maintenance schedule, would select an exhaust system that allows changing both oil and filter without requiring removal of the exhaust system.
Good Fortune!
1973 Z1
KZ900 LTD
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- Bakes
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- Z1 Enterprises Customer Service Guy
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Although tough to find evidence of such - both Kerker and V&H are still producing pipes - at least for the Z1s / 900s.
Available "visual evidence" would support the NLA claim but as far as we know, there are no plans in the immediate future to end the production.
I should have a chrome system (Z1, KZ900, KZ1000) in stock by mid to late next week. No shameless plug here - Mark and I already talked via phone.
The idea of a Yosh is by all means intriguing! :woohoo:
Best of luck Mark.
Bakes <><
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- Patton
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...The idea of a Yosh is by all means intriguing!....
Mine got less intriguing with every oil and filter change. :laugh: :laugh: :laugh: :laugh:
But beautiful, so very beautiful.
Good Fortune!
1973 Z1
KZ900 LTD
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- Gman
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1978 KZ1000
1965 Harly Electra Glide
2002 Gold Wing
1974 Z1 900 project
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- kaw a bong a
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- Have a 1978 kz 650 b and a 1976 kz 900z1ltd
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1978kz650b 1976kz900 first bike 1979kz 400
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- mtbspeedfreak
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Patton, I've tried most of those routes: new Yuasa battery, Dyna S and 3 ohm coils, NGK BR6IEXs (Iridium's), MSD 8.5mm wire, and a K&N airbox filter. I've only tinkered with the pilot air screw adjustment- I think I'll hold off on any more tuning till the Kerker's on. I'd imagine straight pipes require slightly different tuning than any system with a muffler.
Not to go off subject, but I've noticed that when I'm higher up in the RPMs, the headlight and indicator lights (I'd imagine the tail light as well, but I've never turned around to watch ) get brighter as the RPMs increase. Is this common? It makes sense to me but I'm wondering if I may have bigger voltage regulator/electrical problems. Also, when I'm on my longer trips, the battery weakens- this past trip I wound up kicking it over the last morning- electric start works fine when she's warmed up. Granted, it's been friggin HOT 'round these parts lately so I'm not worried, but I think I've noticed that when I'm running my high beam (I usually run with my high-beam always on; Sylvania Silver Star car headlight) the battery drains faster. As opposed to not having the headlight on as well, which I do on occasion when it's really hot (+100 degrees).
Thanks!
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!
If it has tits or tires, it'll give you problems!
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- hocbj23
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- kaw a bong a
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- Have a 1978 kz 650 b and a 1976 kz 900z1ltd
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1978kz650b 1976kz900 first bike 1979kz 400
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