jetting

I have a 1989 blaster and a 2006 blaster. The 89 doesn't have an air box, the 06 does have an air box. I was using a little k&n filter (if someone could help me find the one I was using that would be awesome) but it fell off while riding a while ago. It has the stock mikuni carburetor. The 2006...

I managed to pick up a clean little 2001 for $800. Gave it to my son for his birthday. The owner couldn't figure out the electrical. It had no spark & the owner was convinced that was the only problem. I rewired the entire harness one evening & everything now works great. However, it did have a...

Long time reader, first post. Here we go I’m in the space coast Florida elevation is bout 0-5ft todays temps 87 index will prob be hotter humidity will be about 61. Blaster just got rebuilt by Ken, haven’t even started it yet but here’s my mods. +3 crank 66.5 kor top end Ken’s trail port and...

So I have a 95 blaster, it has a fmf full exhaust, foam filter with no lid. Everything else is stock. Runnning br8es plug, carb is stock only thing I did was change the main jet to a 270. And now it’s running weird. It idles good. Takes off good. But when I go WOT it’s like it hits rev limiter...

So I have a 1992 blaster and I’m new to two strokes. I just got the quad it has an open air box and a fmf silencer but stock pipe. I believe it has a 240 main jet and a 30 pilot jet. So the air screw is all the way in and it still seems lean. Not much smoke and I’m running 32:1. So do I go up on...

Hey guys, I recently got a Yamaha blaster with an fmf pipe. It didn’t have a carb when I got it so I got an oem carb and started jetting it. I first put a 270 in it with a fmf fatty and airbox lid on snorkel removed 32:1 mix. And did a plug chop. It looked extremely lean so I did it again but...

So I rebuilt my 02 blaster this winter after I fried it a couple weeks after buying it last summer. When I did the fresh rebuild (jug, piston, rings, gaskets) I added dual stage boyesen reeds, ported and polished the jug, and removed the box air filter altogether and put a cone filter right on...

I posted on here a long time ago and got some great advice on my previous blaster for the jetting. After leak down and plug chopping it was spot on. I’m building one for my son and trying to get close w the jetting while I’m ordering rebuild parts. I’m doing a +3 crank it has an open air box w a...

My blaster is an 04 with tors delete, has 65.94mm Piston brand new hone and bore to match cylinder. Airbox delete. Has fmf gold series fatty pipe with an fmf turbine core silencer and reeds of unknown origian. Question 1 is what should jetting be for the pipe and silencer, bored motor and...

So. 04 blaster. Fresh rebuild, bottom up. Wiseco crank and piton. Niche jug And head. Hot rods and All Balls bearing everywhere else. So when I got the bike it was stock everywhere. I put a FMF gold fatty and power core 2 silencer on it. Ran great with no tuning or jetting. Since I’ve...

Hi all recently bought a 06 special edition blaster, when on wot in high gears it feels as if there are flat spots like it's sort of holding back I have an open air box lid DMC front pipe and FMF silencer Thor's delete and carb is a replacement Thor's delete carb unbranded , I bought the quad...

Hey Everyone! my carb is toast, it was a 2000 with the tors system, the previous owner already removed the electrical stuff so i was going to buy the stock VM26-606 carb when i found it, it says it comes with a 190 main and 22.5 pilot most forums i saw says i should be running around a 240...

I have a 1989 yamaha blaster thats bored .2 over with a weisco piston and boyeson power reeds stock expansion chamber aftermarket pipe dont know the brand sticker was burnt oil injection aftermarket airfilter no airbox lid tors unplugged i am currently running a 300 mainjet if i open it all the...

I need opinions on what siz jet to use. I recently got an 04 blaster and I took the carb off to clean and remove the tors system. The previous owner had put fmf pipe other than that I believe it’s all stock. So I seen he had rejetted it once bc it had a 260 jet already in it and the clip was on...

I recently blew my motor on my 98 blaster. I've been exploring my options when it comes to rebuilding and have been particularly interested in just buying a big bore kit instead. So what I need to know is if i were to invest in a big bore kit, say 210cc? What would I be looking at jetting wise...