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Kz650 with VM26's
- jmoney05
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26 Aug 2014 23:05 #645324
by jmoney05
1978 Kz650D
Kz650 with VM26's was created by jmoney05
Can anybody diagnose this issue?
Bike starts fine and idles fine ,and runs great smooth as a sewing machine as long as I'm accelerating.
Here's my issue: at a cruising speed (any steady speed) the bike runs/sounds choppy almost like a two stroke at cruising steady speed! Is this normal lean or rich?
Bike is very responsive at any speed any gear as well.
Bike starts fine and idles fine ,and runs great smooth as a sewing machine as long as I'm accelerating.
Here's my issue: at a cruising speed (any steady speed) the bike runs/sounds choppy almost like a two stroke at cruising steady speed! Is this normal lean or rich?
Bike is very responsive at any speed any gear as well.
1978 Kz650D
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- jmoney05
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26 Aug 2014 23:11 #645325
by jmoney05
1978 Kz650D
Replied by jmoney05 on topic Kz650 with VM26's
Also must add that carbs are only bench synced, I have a mercury gage and will balance them this weekend in hopes that will improve the issue, also bike has pipe with no silencer and pods installed also big bore kit.
1978 Kz650D
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- Nebr_Rex
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27 Aug 2014 04:18 #645332
by Nebr_Rex
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
Replied by Nebr_Rex on topic Kz650 with VM26's
The 'no silencer' is your problem.
.
.
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
The following user(s) said Thank You: jmoney05
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- baldy110
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27 Aug 2014 08:22 #645359
by baldy110
Replied by baldy110 on topic Kz650 with VM26's
What do you mean by, "sounds choppy like 2 stroke" is this detonation in the cylinders or is the bike surging under steady throttle?
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- jmoney05
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28 Aug 2014 07:52 #645470
by jmoney05
1978 Kz650D
Replied by jmoney05 on topic Kz650 with VM26's
No surging just sounds rough like perhaps detonations in the cylinders! Sounds like it has a mean cam! Ill try with the silencer in this evening, thanks for the input guys, ill wright back tonight
1978 Kz650D
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- jmoney05
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28 Aug 2014 19:03 #645527
by jmoney05
Ok so I put the silencer back in the pipe and yep that was the issue, she runs smooth now,thanks
Man I do love that sound without the silencer tho...
1978 Kz650D
Replied by jmoney05 on topic Kz650 with VM26's
Nebr_Rex wrote: The 'no silencer' is your problem.
.
Ok so I put the silencer back in the pipe and yep that was the issue, she runs smooth now,thanks
Man I do love that sound without the silencer tho...
1978 Kz650D
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- jmoney05
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08 Sep 2014 08:41 #646685
by jmoney05
1978 Kz650D
Replied by jmoney05 on topic Kz650 with VM26's
I would just like to add that I just discovered a vacuum leak, two of the intake rubbers were missing the rubber plugs. I put new plugs over the fittings and wow what a difference . The bike is way smoother and runs a lot better now.
1978 Kz650D
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