Blaster stock jetting. BLASTER JETTING SPECS Blaster FMF Pipe Main Jet .
Blaster stock jetting Here is a link for needles- JETS R US KEIHIN NEEDLE N427-46 Leak test it first, if air tight, Then jet seeing as you already did the float! I agree you should be in the 150-160 range on the main Aug 30, 2012 · Here is another one that I found that a exact same motor as wb2Brand = MikuniModel = (From XL760)Size = 44mmQuantity = 2Pilot Jet = 110Main Jet = 130Needle/Seat = 2. 8K views 8 Mar 14, 2017 · Well for your yz250, just start with the stock jetting. I run a 35 pilot and a 290 main jet on my Blaster. I noticed it is mainly rich when I try to pop a third gear Mar 3, 2010 · I have a 02 blaster bored . Stock bore. The head comes first, the stock shape is a failure. I run at sea level, 40:1 ratio, with a k&n filter with the air box lid closed. Jun 10, 2009 · jetting PE, PJ, PWM, PWK, - Yamaha Blaster Forum 84 atc 200x msr bars scott grips fast trekker rears durablue spacers moose filter dg exhaust, dropped and ready to slide! 84 cr125 R. plug chop and see where to go from there. and no it is not a 28mm its a 26 or something idk lol. It has a FMF Fatty pipe and a K&N filter in the stock air box with the snorkel removed and is currently jetted with a 260 main and 32. The size you’ll want to replace it with will depend on the types of intake and exhaust modifications you’ve made. Do you guys mess with the pilot circuit. ) running for jetting in the new england area?? Jun 10, 2013 · Sometimes stock jetting works fine, other times a slight adjustment is needed. Feb 20, 2008 · I have a blaster with a vitos 240 kit, vitos 3mm stroker, F7 exhaust, no porting, boysen power reads (stock but carbonfiber), k&n air filter, and a 30mm cpw carb. unless you have a exhaust or no airbox lid i dont think you should have to rejet much at all. You willl probably end up in the mid 140's range on the main jet with the FMF pipe and open (but still stock) airbox. but i dont know what mine is i live in northwest ohio. I had the stock carb with a Vito's jet kit (300 main, needle in third slot, can't remeber the pilot) after about 5 hours the engine seized. comp/leak tested great. The set up I have is Boyesen power reeds with reed spacer, K&N air filter with box drilled, FMF pipe, 35mm Keihin PWK. keep the stock pilot and the clip in the middle for the needle. 5 and needle clip in middle 3rd slot toomey instruction are for airscrew to be at 3/4 of a turn out This is a full VITO'S PERFORMANCE JETTING KIT! This is everything you need to take your stock carb from factory setting to accommodate aftermarket pipes Enough jets to do 1 Yamaha Blaster carb for mods include removal of airbox lid or pod style filters and the addition of aftermarket pipes Includes main jets: 290, 300, 310, 320, 330, and 340 Nov 6, 2018 · What I do intend to do immediately is remove the airbox lid and snorkel. Under 2 turns it stalls. I think I'm pretty close but it's a little on the rich side. I did a plug chop on my 290 with Nov 13, 2010 · stock jet is a 230, my first blaster (brand new 96) came with one size bigger main jet, that the manual said to intall when riding below freezing, but i never did, prolly cause the oil injection system injects so much oil????? sold it 9 hard ridden years later with the stock piston still in it May 31, 2010 · Okay guys lookin for some support here. Feb 10, 2002 · stock main is 230, pilot is 32. 1) Never change more than one circuit at a time. SPECIAL NEEDLES AND MAIN JETS GROUND SPECIFICALLY FOR THE STOCK CARBS OF THE US MODEL RZ. Mar 15, 2007 · on my blaster when i first did the first mod a fmf fatty, turbine core 2 Q i had to move the needle i would just buy a jet kit on dynojets needle that they gave i think, dont quote me, i was on the 3 or 4 th clip and was running a 340 main, if you go to dynojets web site they will tell you for sure but i dont know if that will help on a stock needle because the one that they gave me was more Main Jet 138 2002 Pilot Jet 45 Needle STOCK Clip Position 2ND Air Screw 2 out Main Jet 280 2000 Pilot Jet 35 Needle STOCK Clip Position 2ND Air Screw 1. Apr 6, 2023 · The stock main jet in the Blaster should be a # 230. The same goes for reeds that don't seal properly, and a silencer that needs re-packing. Mar 26, 2007 · With my 32. Dec 11, 2021 · So looking for some help got top end back together and I ended up buying a new Mikuni carb model #vm26-8074 I was not aware of the difference in this and the stock carb looks the same but has little different inside floats and pilot jet, has 8 hole jet Mar 16, 2012 · just the pipe, silencer and no a/b lid? start at 270. My question Here’s a quick intro to the best carburetors for Yamaha Blaster 200: – For stock Blaster 200: This Mikuni 26mm carb. 5 out Main Jet 280 1999 Pilot Jet 35 Needle STOCK Clip Position 2ND Air Screw 1. Oct 21, 2024 · Hi all 👋. so i have a new air box lid comming (i noticed a lot of mud in the airbox:o) and i want to return the carb back to the stock settings but i don't know what Oct 29, 2020 · The colder it is the bigger the main jet will need to be. 0Spring = 95gPilot screw = 1-1/2Main Screw = 1-1/4- - - - - - Gas Octane = 98Altitude = Sea levelMain type of riding = FreerideWould it pass the 10 second WOT test = YES !!Powerband = Bottom to midrangeMotor type/setup = 760 (62T Jul 17, 2019 · Learn to jet. so now that u know all that here is my problem the bike bogs at lower rpm in 2nd thru 6 Feb 8, 2009 · I have a 2002 Blaster that I installed a Vito's 240 kit. Check in owner manual, it's suppose to have good explication for jetting. And a revised 03-06 blaster manual says 230. I. 96 The Stage 3 jet kit comes with all the following brand new parts: Precision machined main jets: 320, 330, 340, 350, 360, 370, 380 and 4 stainless steel allen head bolts for the carb bowl. what jetting should i use right now its the stock jetting 230 main, 32. Needle will be best in the center clip or one clip position down from center. The new carb a got came with 190 main jets, 22. 50 over stock air filter full pro circuit exhaust at a 700 ft elevation going to be around 30 to teens temp wise what would a good start point for jetting. 5 pilot. I do NOT have a BBK, so my main jet is gonna be a little smaller than what you need. But generally speaking, you’ll likely want to increase it to a jet size of around 280. Maybe even a 300 main depending on your elevation. Here is what we've come up for in our area and is a great starting point for you as well. Oct 25, 2021 · Re: Jetting recommendations for 760 blaster I don't understand why 2. Awk08 Administrator May 16, 2016 · So right now my blaster has a stock expensive pipe on it and a older fmf pipe on it ( straight though no sparky in it) and i want to get a full fmf with the turbine core 2. 5 out Main Jet 280 1996 Pilot Jet Mar 4, 2009 · Re: factory b-pipe superjet jetting? Straight from Factory pipe's website. Mar 19, 2009 · stock jet is in it right now, but all that i have on there is reeds and the pipe, oh and a k&n and open airbox. Earlier in this thread I posted some pictures and suggestions. Octane ratings diminish with time and the higher the octane the slower the burn and richer the mixture. that #'s a little rich, better to be rich than lean. the blaster needle is fatter (means less gas can go thru the main jet when its at idle) the banshee needle is real skinny on the end (more gas gets thru the main jet at an idle) Hope that helps. These are to be used with basic mods such as a factory b pipe, pro tec, r&d, and higher comp. Uni dual stage. 1984-2009 Dec 11, 2011 · The stock needle in an OKO30 is N80F, I believe I ended up with a (leaner JJH needle and fourth position) And it was happy. I recently purchased a 2004 Blaster and I want to complete the fmf silencer that's on the bike currently. And were i live it gets to aout 100 to a really hot day ( not common) and about 20-30 when i would be riding in the winter. Read all you can about "Plug Chop 2 Stroke" to learn how to jet. What should I do? Oct 10, 2023 · I'm running stock jetting 32. he said hes already up to a 310 main and had to order larger jets as he hasnt found the rich spot Jul 22, 2009 · we fould a plug last week while ridding which makes me belive even more that the blaster is jetted for a pipe thats not on there any more. 5 pilot, 230 main and clip 2 down on needle, yet my blaster is running very rich, bogging down at the top end, and stalling at idle, as well as fouling my sparkplug. Bill M. I know fmfs website says 260 and remove the snorkel from the fron of the airbox lid. 5 pilot, and 1. I just put a 240 on my blaster, won't start by kick start unless motor was just shut down. blaster jetting with dmc pipe Kay guys. Before you start the jet testing, Install a fresh plug. i know altitude makes a diff. 0 - - - - - - Gas Octane = 110, 32:1 klotz r50 Altitude = sea level Main type of riding = race Would it pass the 10 second WOT test = all the time Powerband = low to mid and high Jun 5, 2011 · Look up elevation jetting. 5 according to specs online spark plug is white after test i was told i can just change the main jet anyone know if this is true and what size should i start out with if not true what Dec 6, 2010 · whats your mods? if it all bone stock stock jet is 230 and needle postion is 3. Jump to Latest 2K views 6 Mar 24, 2005 · i am new in the world of mods always kept my wheelers semi stock but i just got a 2002 blaster put on a 33 tooth rear sprocket uni air filter and complete dg exhaust i need to rejet main jet #230, pilot jet #32. Right now airbox lid on. Oct 12, 2008 · 1) What are the stock main and pilot jets? 2) What is the best jet kit to get (one with a bunch of jets to mess with) and where do you get it? 3) What are people with similar setups (FMF Fatty, PC2, no airbox cover, etc. . And it runs pretty good it's a non ported motor with stock carb. thanks just wondering Feb 6, 2011 · hey guys i have a 1997 blaster bored 20 over fmf gold series head pipe and a powercore II silencer boyseen reeds and a stock aftermarket air filter. I'll toss a 260 in and go from there. Nov 3, 2019 2,150 389 119 Florida. It’s pretty much the closest to what stock Blasters have as an OEM carburetor. would i risk melting my piston if i keep the 240 jet in Mar 5, 2010 · I have 97 blaster with a FMF pipe can someone tell me what jetts to run it's on the stock bore My tommey is using a 330 main but I was told FMF uses a smaller Jett. We developed these specs with a 32:1 fuel to oil mixing ratio of a 50/50 mix of race fuel and super unleaded, 0 - 1500 ft altitude at 70 degrees outside temperature. I switch to my 35 pilot and the idling stops increasing at 2 turns. DMC also says to use the stock needle on the richest setting. I have read that this requires 2-3 larger main jet sizes. Buy a complete set of quality main jets and pilot jets and learn to tune a 2 stroke properly. no airbox lid, graydon proline pipe with a pc factory sound silencer, stock oil injection. im having it tuned at creek cycles. While true for a stock machine, as you add mods the temp range that a main jet size works best for may be as little as 20 degrees F (for example: 310 mains for 40-60 degrees F, 300 mains for 60-80 degrees F, etc. – For light mods: Best to go 28mm to 33mm. was hoping i could get some ideas from someone that lives kinda close to my area. maybe a 240 main bubba813 Sep 9, 2004 · Yamaha YFS200 Blaster ('88-Present) stock jetting. 5. EDIT: if it is an 88-89 blaster, the stock main is 220, but everything else is the same Jun 15, 2007 · blaster Brand = Mikuni/novi Model = ? Size = 48 mm Quantity = 2 Main Jet = 150 Pilot Jet = 155 Needle/Seat = 2. You might need to do a bit of jetting though. heads. I thought two strokes needed back pressure in order to get any low end. deleted tors and deleted oil injection. I will have a toomey pipe would want to run 32:1 fuel (premixed) open airbox with K&N filter I have a simple Aug 29, 2009 · I am going to remove the oil injector on my kid's 98 Blaster and run Klotz R50 at 40:1 like I do in the Banshees. 2-95 gram springs Any recommendations on where to start with the jetting on a KOR ported motor running a stock pipe? The #1 Community For Yamaha Blaster Owners! Search. Three quarters out Jun 18, 2004 · Yamaha YFS200 Blaster ('88-Present) stock jetting. Oct 14, 2010 · If anyone is still active for this thread I have a similar question on this topic. A stock blaster is really only195cc. Yamaha Blaster YFS200 stage 2 jet kit $28. May 5, 2013 · Hello I have a pwk 28mm carb that I got in a trade and I can't seem to get the jetting even close, if I could get help that would be nice or maybe of someone has a good stock carb I might trade them, I can't seem to get jetting down thanks for any advice in advance Oct 11, 2020 · Having a little bit of issues getting my jetting right since I upgraded my carburetor to a 34 mm PJ. I'm at sea level, premix 32:1, UNI filter, stock everything but without lid. May 17, 2020 · I will post another day and pics of what ive been working on its been fun project. I didn't see anything in the SEARCH option about the pilot jet being messed with on a stock motor. 5 M 115 L 95gr 1. Need help as to why its running so rich, any help or recommendations would be appreciated. :-[ I'm presuming with as aggressive as the porting is, that it needs the added air flow as I am running a pretty heavy jet setup as it is right nowcan't remember exactly what it is, but I might go check later. 5? i may be slightly off on the pilot. What needle is stock on the blaster. May 25, 2010 · If your engine has a worn top-end, fix it first. So i just won a fmf pipe with shorty silencer. 5 N&S ~1 3/4 low screw ~1/2 hi screw It will not matter what the jetting is, if the impeller is the wrong size for the pipe and porting. What jetting should I use? Jun 4, 2007 · Take the lid off, go w/ a Uni filter and rejet using a 290 main and you will see a big difference in power. A pdf manual i have says 220. Jan 30, 2009 · after repeatedly typing this, it's time for a linkable thread :) all this is assuming your carb is immaculately clean, float height correct, your engine has been leakdown tested and proven airtight, as well as a freshly cleaned or new airfilter, good fresh fuel/oil mixed correctly for that Oct 17, 2007 · Ive had some confusion on my part about the stock size main jet. Dec 25, 2009 · This needle is too rich right off idle for my ported stock jug Blaster, but it should do well for you on your BBK. There are two jetting combos available, the first jetting specs are for a stock cylinder with an aftermarket exhaust. I need a jetting baseline. I got a blaster. Jan 7, 2004 · hey the difference between a banshee needle and a blaster needle is the end. BLASTER JETTING SPECS Blaster FMF Pipe Main Jet Jul 2, 2017 · What is the stock pilot jet and stock main jet on the blaster. I also think your engine will prefer a 45 pilot over the 48, but as you well know its better to start rich and tune from there Oct 16, 2011 · stock main jet is 230, stock pilot is 37. I feel like when it's about half throttle or maybe when I jump on the gas. Mar 10, 2015 · I've got a blaster 66mm piston new cylinder all new gaskets new intake manifold new boysen carbon fiber pro reeds no air box lid foam filter Toomey b1 pipe running 32:1 castor 927 100octane 310 main needle stock position tried 3rd to rich stock pilot air screw right at. 5 turns out on the air screw i checked the plug and it black any help will be greatly appreciated thanks Jul 19, 2004 · need help on big bore blaster build i have a 91 blaster, and did a 265 big bore, fmf fatty full exhaust, hot rods crank, stock carb, boyseen stage 2 reeds, stock coil and stator, c12 race fuel and castor 927 oil. Feb 17, 2008 · I have a yamaha blaster and im not sure what to jet it to. 5 TURNS OUT (1/2 TURN OUT) This is the perfect jet kit that, when used with our RZ pipes, cha Jun 27, 2016 · I have a stock blaster and I want my jetting to be perfect for my oncoming mods. im running a 240 These were specifically made for the Yamaha 701 super jet wave blaster models with the stock dual 38mm carbs. thanks, i'm at sealevel so the 290 or 300 probably would do the trick. 5 out Main Jet 280 1997 Pilot Jet 30 Needle STOCK Clip Position 3RD Air Screw 1. Trying to jet a worn out engine is a waste of time. 5 pilot, needle jet O-0, jet needle 5E75, throttle valve 1. Slydog Active Member. With a stock pipe and the airbox lid off, will I notice any benefit from lowering the needle one clip, or will I be good with just a main jet increase and tweaking the air screw Aug 6, 2012 · i am now running a 240 jet, what i dont understand is that my bike was over fueling with a 290 jet but now it burns perfectly with the 240 in. Worn reeds will mimic rich jetting, and worn rings will mimic lean jetting. stock jetting is 230. 5's/65gr with a 12psi pop-off would ever be needed by any application? Wasn't the stock 760 jetting 135, 137. Mar 23, 2011 · PILOT JET: The pilot jet is a medium size (¾-1") brass jet located inside the float bowl next to the needle jet/main jet location. 0 Main Screw = 1. 5 Spring = gold Pilot screw = 1. Stock After mods. I'm running stock carb with 240 main jet, stock pilot and factory settings and stock exhaust. 5 pilot (stock for blaster in 26mm Mikuni Carb), working the air screw, at 3 turns out, it high idles. Jump to Latest 1. 5, clip 2nd position down, air screw out 1 1/2 turns. NOMINAL SETTING IS NEEDLE ON THE THIRD GROOVE, #410 MAIN JET STD FLOAT SETTING (21MM +/- 1) STOCK #20 PILOT JET, PILOT AIR SCREW SET AT . Is this true and why if it is the same motor and carb. I was wondering what the baseline for Jetting the fmf Fatty and power core 2? I am currently running the stock 66mm piston, it has power Reeds (not sure who makes it) the stock Jan 25, 2011 · It's torquey through 1-3 gears, but my blaster can't even beat a stock 400ex, so I think it's time to at least try a carb swap. Just never heard that there was a difference. If I pull/push start it it starts fine and runs like a scolded dog. Starting with a 260 main, maybe one notch down (middle) on the stock needle Aug 12, 2008 · Mikuni says that a main jet size is good for approximately a 30 degree F temp range. youre prolly gonna end up 250-260 but like i said, better to be a little rich to start Feb 25, 2009 · hey guys was just wondering if anyone that has a 240 big bore what pilot and main jet sizes they were running. Aug 26, 2011 · Your best bet is gonna be to start around a 148 main and a 48 pilot jet. You need this tool to tell you exactly which circuit is affecting performance and at what throttle opening. It is hopeless to tune 2 strokes without this essential skill. P. if you have a aftermarket exhaust ask the maunufacter for jetting infomartion Mar 8, 2015 · Ok guys installed vitos 240. stock pilot 32. It's always the better point of reference, and from there, ride it, pay attention to the comportment of the engine, check the plug ( put new one in) and adjust you jetting in reference of your spark plug. a dg pipe is basically a stock pipe just louder. Nov 17, 2007 · Jetting Guidelines; Eliminating the variables. Change Main jet to a 135 Leave Pilot jet stock Leave needle and seat stock Change the spring to a 95 gram spring Low speed screw 1 1/4 turns out High speed screw 1 turn out These settings are for aftermarket flame arrestors and a limited factory b-pipe. It has an fmf fatty pipe with a powercore 2 silencer, its bored out 2mm over,34mm carb, and a k&n filter. Nothing else. I was going to run stock jetting in her from my old carb but the needle jet is different and throttle valve. The #1 Community For Yamaha Blaster Owners! Search my set up is a stock motor with stock carb. 2) Use fresh gas. ). The pilot jet meters the fuel required for engine starting, idling and the initial throttle opening 0-1/8. Mar 10, 2015 · my opinion is you are giving it to much gas. I installed the 340 main jet pilot and needle that came with the kit the needle is set in the middle position. Technician. dhiz ezy ijdfvp yylilp svrof wjbwbyuy mlvb vnculn lhptmc grong