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Author Topic: 105 to 120 jets! WOW  (Read 897 times)

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Offline JS550

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105 to 120 jets! WOW
« on: June 18, 2009, 03:56:47 PM »
Swapped out my 105s for 120s on my 75 750k today & what a difference! Think I might try 125s down the road, but for the 120s feel better through the whole power band.
jim
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Offline Colonel

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Re: 105 to 120 jets! WOW
« Reply #1 on: June 18, 2009, 04:25:53 PM »
I have a 750 K5 with 657B carbs; Factory 4 in 2 exhaust...
The main jet setting are 105 for this type:

http://www.hondachopper.com/carb.specs.html

I just cleaned and re-assemble my carbs using 105 main jets.
You got me paranoid now... Should I keep the 110 or even go higher/richer?

« Last Edit: June 19, 2009, 01:49:52 PM by Colonel »
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Offline BigBrownDog

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Re: 105 to 120 jets! WOW
« Reply #2 on: June 18, 2009, 05:00:39 PM »
What exhaust are you running??
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Offline 75750SS

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Re: 105 to 120 jets! WOW
« Reply #3 on: June 18, 2009, 05:04:34 PM »
I wonder how accurate the chart on the hondachopper.com site is.  I have a 75 750F and the cards have 064A stamped on them.  Doesn't even appear on the list.
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Offline JS550

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Re: 105 to 120 jets! WOW
« Reply #4 on: June 18, 2009, 05:29:13 PM »
I just wanted to try it & love it. I was reading on the site here somewhere that the 69/70s had 120s & some other carb info & gave it a shot! I have a 4into1 & a K&N in the box. It pulls better through all the gears now.
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Offline Caferacernoc

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Re: 105 to 120 jets! WOW
« Reply #5 on: June 19, 2009, 08:01:13 AM »
Yep. With 4 into 1 and pods you would definitely need the 120's.
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Offline JS550

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Re: 105 to 120 jets! WOW
« Reply #6 on: June 20, 2009, 07:37:07 AM »
Quote from: Colonel on June 18, 2009, 04:25:53 PM
I have a 750 K5 with 657B carbs; Factory 4 in 2 exhaust...
The main jet setting are 105 for this type:

http://www.hondachopper.com/carb.specs.html

I just cleaned and re-assemble my carbs using 105 main jets.
You got me paranoid now... Should I keep the 110 or even go higher/richer?


You just gotta experiment. You can get jet kits that have a few sizes for around $50 I believe. Or just pick up a set @ a time. I got the 120s for about $25 shipped. Considering trying 125s, but wanna try these for awhile. I just went with what I read was good on here.
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