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01-30-2013, 08:23 PM | #1 |
Join Date: Apr 2006
Location: South Haven Michigan
Posts: 225
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I hate being so filthy rich...
I hate being so filthy rich...ok...in regards to my carb..cause my bank account is a joke..lol. As you know I put in that powerhouse iron kit from Autotech355 on Ebay. Old one that cylinder cracked on was a street kit...this a sport/race kit with porting big enough to fit my head through almost... Old one ran well on a #85 jet...this one was lean with it...#90 was lean with. It would only run ok until the auto enricher cut off..then it merely bogged and got hot. Today I put on a performance pipe and only bigger jet I had was a #100.. Probably more like 102..105 or bigger cause as everyone knows when you drill one out..it ends up slightly larger than the drill size. So my 1mm bit measured 1mm but as stated I'm sure the orifice is larger in the drilled jet.. To me it now seems rich..revs high on the stand..so much in fact that it almost whistles jet like at WOT. Take off is ok..sometimes a bit sluggish. Acceleration to WOT of only 35mph is slow and sounds as if it is breaking into a 4 cycle sound. When I get to WOT and drop to half throttle..speed stays the same...but it has a " tat tat tat tat tat " sound like a machine gun. Guessing that it is rich at that is unburned gas igniting in the expansion chamber? Bright side it is no longer lean and shutting off cause it's too hot once the enricher kicks off. Plug chop shows the porcelain as dark brown and the electrode as black. Never messed with raising or lowering the needle clip as I have always had success with a mere jet change. My question is...if I lower the needle..that will lean out my lower and midrange...but at WOT won't my main jet still be wide open once the throttle is fully twisted and the needle if fully out of the main jet opening?....leaving me too rich? Maybe go back to a #95 jet where it was lean and raise the needle?..
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01-30-2013, 08:29 PM | #2 |
Join Date: May 2011
Location: jeannette, pa STEELER COUNTRY
Posts: 123
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your lucky im smart
when i 1st reading the heading of the new post, i almost PM'ed ya and asked for a date but as said , im smart i read the post saved us both a lot of embarrassment
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2008 Shanghai Schenke Motorcycle Company LTD model # SL-15021B added extra turn signals, brake lights on the trunk saddle bags and a windshield 67 mph top speed ALL STOCK verified by PSP "Hillary in 2016" |
01-30-2013, 08:56 PM | #3 |
Join Date: Jan 2010
Posts: 139
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It's always a balancing act when jetting. You need to experiment with needle heights too. If you're bogging too rich on the top end with one jet but acting lean while accelerating it means you need to lower a jet size on the main jet and raise the needle one clip higher.
But to me it sounds like you can't trust your drilled jet. Get a real 95 and 100 main jet and you'll probably be better off. Then after experimenting with each one see how it behaves at partial throttle. Is this a stock size carb or an oversize? Because one thing is for sure going with an oversize carb can create a situation like you have, a very difficult to tune midrange. When going oversize carbs you end up with basically an on/off switch instead of a throttle. |
01-30-2013, 10:11 PM | #4 | |
Join Date: Apr 2006
Location: South Haven Michigan
Posts: 225
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Quote:
@terrilee....you may not want me...I am fat n ugly...ewww...you would need about 20 of these before you would even talk to me..... |
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01-30-2013, 11:12 PM | #6 |
Join Date: Apr 2006
Location: South Haven Michigan
Posts: 225
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Matt...exactly my after thought..right after I posted this scenario... Just as 'Too many Cooks spoil the Broth"....in the Scoot world.."Too many variables spoil the diagnostics"....
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01-30-2013, 11:45 PM | #7 |
Join Date: Nov 2011
Posts: 482
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I installed Trump jets in my carb, now it's not only filthy rich but "fires" every time!
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01-30-2013, 11:48 PM | #8 | |
Join Date: Sep 2012
Location: West Haven CT
Posts: 1,165
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Quote:
I nearly busted a rib laughing at that one Where do you come up with them LOL Take care and ride safely dear friend Yours Hank
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"4wheels move the body 2 wheels move the soul" Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. Douglas MacArthur |
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01-30-2013, 11:51 PM | #9 |
Join Date: Nov 2011
Posts: 482
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01-30-2013, 11:52 PM | #10 |
Join Date: Sep 2012
Location: West Haven CT
Posts: 1,165
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Hi Glenn
Fine tuning the air fuel mixture can be quite the hassle Its part of the reason i choose "April" as her efi system makes life a whole lot easier Im sure you will firgure it out in no time and have her "ship shape and bristol fashion" Take care and ride safely dear friend Yours Hank
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"4wheels move the body 2 wheels move the soul" Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. Douglas MacArthur |
01-30-2013, 11:54 PM | #11 | |
Join Date: Sep 2012
Location: West Haven CT
Posts: 1,165
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Quote:
Your most welcome and thank you for entertaining my little girl Take care and ride safely dear friend Yours Hank
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"4wheels move the body 2 wheels move the soul" Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. Douglas MacArthur |
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01-30-2013, 11:57 PM | #12 |
Join Date: Apr 2006
Location: South Haven Michigan
Posts: 225
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I once used Richard M. Nixon jets in a carb..of course they went in 'crooked'...but on the bright side when I passed another scooter..I never had to take a hand off the handlebars to wave..cause they automatically gave people the Peace sign anytime we saw somebody..
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01-31-2013, 12:04 AM | #13 | |
Join Date: Sep 2012
Location: West Haven CT
Posts: 1,165
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Quote:
Me thinks we are all getting a little crazy tonight I Like it Take care and ride safely dear friend Yours Hank
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"4wheels move the body 2 wheels move the soul" Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. Douglas MacArthur |
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01-31-2013, 12:18 AM | #14 |
Join Date: Aug 2011
Location: Tierra Azul, NM
Posts: 739
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It is certainly silly around here tonight. I must say the Trump jets get a +37.23007 and the Nixon (sorry Glenn) a +.006286 according to my calculations yes I found a torn up MENSA card
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Do not fear mistakes. You will know failure. Continue to reach out. - Benjamin Franklin Join the HARDCORE 1983 Honda GL650I SilverWing |
01-31-2013, 12:31 AM | #15 |
Join Date: Nov 2011
Posts: 482
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Sorry (I know it's sick) but every time Stewie puts the gun in his mouth I crack up!
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