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LTD B engine upgrade
- texaskz1000
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- 1980 KZ1000 LTD
What do i need to do to make the head match up with the carbs? But I want to keep the bike street.
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- davel
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If the rest of the bike is stock, it might be easiest to go back to the stock BS34s.
RS34s can be made to run well but if you're just looking for a stock performance setup, the stock BS34 carbs should work fine. Might be the easiest and cheapest solution.
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- PLUMMEN
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Still recovering,some days are better than others.
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- davel
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- texaskz1000
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So I did and the bike ran ok but keeps running through pluggs and now got a brand new set of Mikunis that i can't return because i used them.
Now back to local shop and they say Oh we didn't know the bike was stock Sorry we should've asked you that before telling you to buy new 34mm carbs. Now they want $2000 grand to build the motor up to match the carbs. I like the throttle response of the 34's. I tried a buddys 29mm and she was kind tame.
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- davel
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What has been done to the bike aside from the carbs?
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- Kawickrice
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I tried a buddys 29mm and she was kind tame.
If the 29's are tuned right they are anything but tame.
73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- texaskz1000
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- davel
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If you have good throttle response, that's half the battle. What's the jetting? Main jet size and needle position?
Keep in mind that RS34's only need about 1/4 turn open on the idle mixture screws. Make sure they're not turned out 1 1/2 turns. This is a common mistake and will lead to carbon fouled plugs.
Also, the carbs should have come with a set of main jets ranging from 110 to 125.
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- texaskz1000
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- saxjonz
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I have some 29 smoothbores I just took off of my bike and would be willing to make a trade plus give up the differnce cash to make up the difference for what you paid because I have an engine in my 79 that I plan on going big with. I have them with chromed tops and bottoms and almost new K&N filters that have 130 main jet in them but could get them jetted to run for your bike. They are not tame carbs on a stock motor. When I put them on my bike I completely noticed a difference like tire smoking action at take off. They work great with stock motors. I also have a set of 28s from my 80ltd that came from california with my bike that had 7000 miles on them when I took them off. PM me let me know if you are interested.
79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
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- APE Jay
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