did i fook up? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 14 (permalink) Old 02-08-2014, 01:25 PM Thread Starter
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did i fook up?

instead of checking my jets first before i did my earshave i changed the jets to what most here recommend. put the v&h cruisers on and it seemed to run great. at times i thought fuel consumption was poor but brushed it off. i only put a couple of thousand miles since i got it in may.
on the september ride i noticed really black pipes and Joe, who had been behind me said it was burning rich enough for him not to ride close to me. i had put 142 mains, 42 slow jets and 2 shims under the needle. going through my spare parts i have 135 mains and 35 slow jets in it. did i go to fat to soon? should i back them down to 138's?

as soon as the weather breaks she is going up on the lift table to do the stator and stator mod. fluid changes ect. ect. if i need to change them that would be the time. the pipes are sooty from the other days ride, but i havent pulled the plugs to look at them...yea i know bad owner

on edit...im in the 320 to 400ft above sea level most places i ride

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Last edited by goofin; 02-08-2014 at 01:30 PM. Reason: sea level info
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post #2 of 14 (permalink) Old 02-08-2014, 01:35 PM
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I'd go 140/40 first then drop the shims if still rich.it's all trial and error with jetting without a dyno.it's funny when I type dyno my autocorrect puts up dynojet.they are a company that sells jet kits

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post #3 of 14 (permalink) Old 02-08-2014, 01:51 PM
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You get pretty good at removing carbs after a few timesdon't ask how I know

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post #4 of 14 (permalink) Old 02-08-2014, 02:16 PM
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At he most, I would go #40-#138, no shims.

The truth is, that is the most I would recommend. On my personal ride, I would do #38-#135, no shims. However, I confess to not knowing anything about that exhaust.
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post #5 of 14 (permalink) Old 02-08-2014, 03:38 PM Thread Starter
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the exhaust has baffles in it, but the goats belly has been eliminated. i really need to take it for a ride and pull the plugs. last time i think i ordered stuff from sudco. jetsrus.com is one place i have to compare prices with

85 700
V&H Cruzers
coastered&shaved
uni filters
coil mod
KC's led turn signal boards
clear alternatives led tail light
Wolfies forward controls
vn900 seat
AGM Battery
Iridium plugs
willie and max bags
plexifairing 3
14 inch apes

97 75
parts bike for now

He was the sort of person who stood on mountaintops during thunderstorms in wet copper armour shouting "All the Gods are bastards."
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post #6 of 14 (permalink) Old 02-08-2014, 06:56 PM
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Question

For years the other Vulcan forum suggested the 142/42 jets with two shims. It did seem to work for some folks, so much so that Sherms jet kit for earshaves contained those sizes. I think they even included a different set of jet needles.

But some had issues, those pointing to over rich problems.
When more experianced tuners became members, it seemed the judement was the early reccomended jet sizes were a bit too big.

I thnk wm's suggestion is a better start. I personally have never done an earshave on the Vulcan, but have done so on other bikes. Generally I found that going up one size to start with was the way to go. This from just reading plugs, not using a dyno. A few bikes did well there and some actually did well with the next size up from there.

So, I'd go back down.

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post #7 of 14 (permalink) Old 02-08-2014, 07:41 PM
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Mine likes 140/40 and two shims.each bike is different.I am waldo at about 1100 ft
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lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #8 of 14 (permalink) Old 02-09-2014, 02:54 PM
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most people never realize that v&h did these pipes right they knew that the pipes were no where near the same length so they did us all a big solid and put a heavier baffle in the short pipe thus creating equal back pressure on both sides and it creates a nice two tone sound that makes people think its a harley

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post #9 of 14 (permalink) Old 02-09-2014, 04:53 PM
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Quote:
Originally Posted by new rider 9984 View Post
most people never realize that v&h did these pipes right they knew that the pipes were no where near the same length so they did us all a big solid and put a heavier baffle in the short pipe thus creating equal back pressure on both sides and it creates a nice two tone sound that makes people think its a harley
nr, if you have experience with those pipes, make a jet recommendation?
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post #10 of 14 (permalink) Old 02-09-2014, 05:43 PM Thread Starter
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mine is also a 700 if that makes a difference.

85 700
V&H Cruzers
coastered&shaved
uni filters
coil mod
KC's led turn signal boards
clear alternatives led tail light
Wolfies forward controls
vn900 seat
AGM Battery
Iridium plugs
willie and max bags
plexifairing 3
14 inch apes

97 75
parts bike for now

He was the sort of person who stood on mountaintops during thunderstorms in wet copper armour shouting "All the Gods are bastards."
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