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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Dynojet main jet is 144? /cgi-bin/YaBB.pl?num=1173814414 Message started by tank_you_jeebus on 03/13/07 at 12:33:34 |
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Title: Dynojet main jet is 144? Post by tank_you_jeebus on 03/13/07 at 12:33:34 So when I re-jeted the carb I noticed that in there was a main jet that showed 145, and the jet that came with the kit is 144? I know the nu,bers dont match up but does it seem correct? Link to the dynojet PDF I'm talking about: http://www.dynojet.com/pdf/3107.pdf |
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Title: Re: Dynojet main jet is 144? Post by vroom1776 on 03/13/07 at 12:38:09 Mikuni vs DynoJet (http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1104263751) most folks end up running a mikuni 155 or so on the main with an open pipe and good intake. looks like the 144 DJ wil be about a Mikuni 135... way too small... see also: roadstar clinic (http://roadstarclinic.com/content/view/61/96/) |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/13/07 at 12:41:16 That just wouldnt make any sense for them to ship it with a main jet that small would it? Any Dynojet owners out there? |
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Title: Re: Dynojet main jet is 144? Post by Savage_Rob on 03/13/07 at 15:08:17 When I put the DJ kit into my original carb, I noted the jets were too small and picked up a few Mikuni jets at the local HD dealer for $3 each. The only thing I found useful in the DJ kit was the adjustable needle. I always advise against buying the kit unless you intend to use the dyno coupon inside. That might make it worthwhile. |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/13/07 at 15:12:32 Thanks, I'll head to the suzuki dealer and pick up a 152.5 and throw that in before I fire her up for the first time since doing all the work... |
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Title: Re: Dynojet main jet is 144? Post by vroom1776 on 03/13/07 at 16:06:02 might as well pick up a couple of sizes... and the pilot jets too... |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/13/07 at 16:18:55 Would that be a 52.5 for the pilot? |
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Title: Re: Dynojet main jet is 144? Post by barry68v10 on 03/13/07 at 17:23:31 Personally, I'd prefer a slightly rich idle and slightly lean WOT. My theory is that gives the best engine protection/cooling and MPG. Thoughts? |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/13/07 at 17:39:10 I got a 55 pilot and a 157.5 main (thats all they had) at the dealership. Thoughts on installing those tonight and firing her up? |
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Title: Re: Dynojet main jet is 144? Post by Dynobob on 03/13/07 at 23:09:51 tank_you_jeebus wrote:
That will be a bit rich with a stock Harley muffler (Dyna). It would be fine with a Screaming Eagle IMO. |
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Title: Re: Dynojet main jet is 144? Post by kf6kmx on 03/13/07 at 23:10:24 tank_you_jeebus wrote:
Thought I'd jump in with a question... My '06 is still as delivered... I picked up a HD muffler for it, baffles intact.. The air box is still installed, so far just going to go with the muffler. Between getting rid of the factory 'pop' on decel, and installing the free-er flowing muffler, any suggestions about what size to get? Do I need to do anything other than the main jet with only the muffler change? Done a lot of hot rod car carbs, but first motorcycle carb I've done any mods to. Thanks |
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Title: Re: Dynojet main jet is 144? Post by vroom1776 on 03/14/07 at 07:57:15 the 157.5 will be a bit rich, but that should be okay.... just blacken the plug a little... you can run on rich jets for a while before you foul the plug, at least in my experience. cary an extra plug and check out the "spark plug door method" in the tech sect... kf6kmx, you'll prolly need to fiddle with the pilot circuit and needle shim as well... |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/14/07 at 09:00:08 Thanks guys, I'll try and acquire a 152.5 and 155 then as I dont feel like causing anymore work if I dont have to. -B |
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Title: Re: Dynojet main jet is 144? Post by kf6kmx on 03/14/07 at 21:24:33 Thanks. I'll start with the jet that size and see where i have to go from there. I have THREE carb projects going now... my KZ750 that I'm changing the o-rings between the 4 carbs on the fuel rail, my KLR250 that wont idle (looks like a plugged jet) and my S40 that I'm going to make my first attempt and motorcycle jetting on to change the tailpipe... yike, suddenly I'm all in the carbs! ::) |
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Title: Re: Dynojet main jet is 144? Post by vroom1776 on 03/15/07 at 06:52:40 hey, at least it aint crabs! and I feel your pain... I need to rejet my (Vroomette's) stock 98. I've been abusing it and turned the header all gold (yesterday). it was definitly not that bad... and my 97 with the VM carb needs to have the gasket replaced, and possibly the needle valve too. My V* 1100 has had the jets 1/2 size too big for 3 years now. it's close enough, but... and that'll need to be balanced... and the vm still needs to have teh pilot and needle height fiddled with.... carbs carbs everywhere! ::) |
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Title: Re: Dynojet main jet is 144? Post by Savage_Rob on 03/15/07 at 06:54:52 I think I wound up with a #55 pilot and a #152.5 main in mine. The #155 worked about the same as the #152.5 but got worse mileage. That was using a Mac muffler. |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/15/07 at 09:43:52 I put the 55 pilot in last night and I think I'll stick with the dynojet 144 main for a sec and see how that runs, my reasoning is that the needle that came with the kit might be narrower and its probably tuned that way for a reason... If it sucks, then yeah I'll bump up to a 152.5. I'll let you guys know how it runs. |
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Title: Re: Dynojet main jet is 144? Post by Dynobob on 03/15/07 at 11:17:17 tank_you_jeebus wrote:
The Dynojet needle is narrower and passes more fuel. Did you use the full white spacer with the Dynojet needle? |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/15/07 at 12:48:38 I think someone has been in there as it kinda looks like the spacer was half the stock size. I think someone has been in here... I already put the thing back together so I'm trying to recall from memory. |
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Title: Re: Dynojet main jet is 144? Post by Dynobob on 03/15/07 at 13:45:19 tank_you_jeebus wrote:
You need to use a full sized white spacer with the Dynojet needle. |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/15/07 at 13:46:45 What are some of the symptoms if it is half spacer in there? Just so I am aware when I fire her up? |
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Title: Re: Dynojet main jet is 144? Post by Dynobob on 03/15/07 at 15:25:00 tank_you_jeebus wrote:
It'll just make your midrange richer. You could probably compensate by dropping your needle (raising the clip). |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/15/07 at 15:32:45 Thanks DynoBob. |
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Title: Re: Dynojet main jet is 144? Post by tank_you_jeebus on 03/15/07 at 21:59:35 So I put the 55 pilot and the 146 Dyno in with the Dyno needle and it seems to run really well. When I start her up with the choke out it gets kinda gassy smelling in the garage, and surrounding area but with the choke in it seems to be better (still a little smelly). To get rid of that gassy smell coming out of the exhaust what needs to happen? Noticable improvment in low end pickup though which is nice. Backfires once or twice during a quick downshift... I gotta say the toughest mod was the snorkelotemy. |
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