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Hard to start - 11/6/2008 1:41:43 PM

Bobbycfh

Posts: 33
Joined: 3/31/2008
Status: online

I put a HMF and dyno jet kit on my vinny a few weeks ago And it would crank up and idle and run fine but after a few rides it is now really hard to get it to crank up till it is warmed up and it also wont idle to the motor is up to running temp. Its also snorkled 1.5" all the way if it matters.

Post #: 1

RE: Hard to start - 11/6/2008 4:33:51 PM

MudKing02

Posts: 1665
Joined: 6/24/2007
From: Stonewall LA
Status: offline

Your prolly running a little rich and need to change your spark plug.

_____________________________

07 Vinson Manual 2" HL lift, Gators on Douglas Rattlesnakes, snorkel, jets, K&N, Warn RT 2500, carb slide mod

(in reply to Bobbycfh)

Post #: 2

RE: Hard to start - 11/7/2008 5:15:27 AM

cointoss

Posts: 139
Joined: 12/28/2006
From: Ottawa, Canada
Status: offline

hmm. I'm thinking it's running lean on the fuel screw with all that snorked air coming through. I say get her running and adjust that fuel screw.

_____________________________

'06 Green Vinson 5speed
2000lbs Warn
26/9/12, 26/11/12 itp Terracross

(in reply to MudKing02)

Post #: 3

RE: Hard to start - 11/7/2008 5:17:56 AM

cointoss

Posts: 139
Joined: 12/28/2006
From: Ottawa, Canada
Status: offline

oh and do some plug chops for the other carb circuits to make sure shes tuned right.

_____________________________

'06 Green Vinson 5speed
2000lbs Warn
26/9/12, 26/11/12 itp Terracross

(in reply to cointoss)

Post #: 4

RE: Hard to start - 11/7/2008 7:51:28 AM

camozuki

Posts: 1014
Joined: 12/19/2005
From: Bay Minette, Alabama
Status: offline

Where are you located? What is your jetting setup? I tried jetting for a 1 1/2" snorkel and I could never get it to run perfect in all of the throttle ranges. Your best bet would be to run a 2" snorkel all the way.

_____________________________

2005 Suzuki Vinson
2007 GMC Classic CCSB 4X4 Duramax/Ally

(in reply to cointoss)

Post #: 5

RE: Hard to start - 11/7/2008 11:23:46 AM

Bobbycfh

Posts: 33
Joined: 3/31/2008
Status: online

Im in Tuscaloosa. Im running a 128 dynojet main and needle on either the second or 3rd position and the mixture screw turned out between 2 1/4 and 2 1/2 turns. I havent ordered a new pilot jet yet

(in reply to camozuki)

Post #: 6

RE: Hard to start - 11/7/2008 2:14:50 PM

MudKing02

Posts: 1665
Joined: 6/24/2007
From: Stonewall LA
Status: offline

I should've gotten more info like Camo asked. I've also got a 1.5" snork, 128 DJ main, 3rd pos. on needle, and screw out 2.5 turns. Mine is a little hard to get started at first but will bust off quick after it warms up. Its the Pilot jet from what I've learned researching on here. I've been waiting on buying it because I'm gonna get an HMF and you have to rejet with that also. A #38 pilot should fix the problem. Its not that I dont like taking stuff apart, I'm saving myself some shipping costs from jetsrus. LOL

_____________________________

07 Vinson Manual 2" HL lift, Gators on Douglas Rattlesnakes, snorkel, jets, K&N, Warn RT 2500, carb slide mod

(in reply to Bobbycfh)

Post #: 7

RE: Hard to start - 11/7/2008 2:58:46 PM

cointoss

Posts: 139
Joined: 12/28/2006
From: Ottawa, Canada
Status: offline

My vinson is mostly stock except for enlarged stock intake snorkle and high flow air filter. Now with this said, I have the 38 pilot jet installed when the colder monthsarrive up here. ANd in the summer I have mostly stock jetting including pilot. You guys FOR SURE need that 38pilot jet and at least a 128main DJ (I run a 122DJ) that 38pilot will get you were you need it IMO

_____________________________

'06 Green Vinson 5speed
2000lbs Warn
26/9/12, 26/11/12 itp Terracross

(in reply to MudKing02)

Post #: 8

RE: Hard to start - 11/7/2008 4:38:01 PM

camozuki

Posts: 1014
Joined: 12/19/2005
From: Bay Minette, Alabama
Status: offline

The main problem is the 1 1/2" snorkel. I never got mine to run perfect in all of the throttle ranges with that size snorkel. I went with the 2" and got it dialed in just right. The carb was setup with a 134 DJ main, #38 Keihin pilot, clip on the second notch from the bottom, mixture screw around 1 1/2 turns out. That is also with the Webcam, HMF, and K&N. Bottom line - ditch the 1 1/2" and go with the 2" snorkel. You should be able to jet the carb, according to your mods, to get it to start and run better. Good luck.

_____________________________

2005 Suzuki Vinson
2007 GMC Classic CCSB 4X4 Duramax/Ally

(in reply to cointoss)

Post #: 9

RE: Hard to start - 11/7/2008 10:12:45 PM

muddinredneck132

Posts: 299
Joined: 4/9/2008
Status: offline

i ran mine 2 in all the way and have the yoshi, DJ main 128, needle on 3rd notch, pilot screw 2.5 turns out and she runs a little lean. ordered kehin jets 140 142 and 145 and the #38 slow jet cause shes backfirin upon deceleration. ill let yall know what i got when they come in.

_____________________________

2007 Vinson Custom "no cut" snorkel, Warn RT 2500, Uni filter, HL 2" lift kit, Line-X racks, Carb slide mod, Jet Kit, Yoshi, 29.5 outlaw skinnies

2005 Honda Rubicon "no cut" snorkel, 27" XTR's, carb slide mod, jet kit

(in reply to camozuki)

Post #: 10

RE: Hard to start - 11/8/2008 9:06:03 AM

barry61171

Posts: 854
Joined: 5/30/2005
From: Alabama
Status: offline

my snorkel is 1.5 all the way. all i did was change the main to a 142 or 145. dont remember which i left in there. its just a bit cold natured but other than it runs perfect.

_____________________________

06 vinson manual
28" outlaws on douglas rokstars
2" HL lift
hmf w/ quiet core
3000lb venom hardcore winch
snorkeled

05 honda rancher es 4x4
26" ITP 589's on black C7's
"no cut" snorkel

www.undergroundatv.com

(in reply to muddinredneck132)

Post #: 11