So I picked up a bone stock 2003 Yamaha blaster 200 a couple weeks back and have been working on it since. I’ve run into a road block. I have cleaned the carb and adjusted it to where it idles perfect and will rev great in neutral. Once I put it in gear it will accelerate but only to a certain point and then it’s like it hits a wall and can’t “get on the pipe” or hit the power band. It’s like that in every gear. First gear I can take off pull the front wheels up at start but then it won’t rev any higher. I’m stumped and would really appreciate some help.
Blaster 200 idles and revs great in neutral but won’t rev out in gear.
- Thread starter Hue_Janeus
- Start date
Well messed with jetting all day then decided to do a leak down test. Went to Home Depot and spent $18 on a gauge and some pvc pipe fittings. Then to the hardware store for a rubber plug. Got home and grabbed my bike pump and instantly found a huge leak from the stator side crank seal. Hopped online to overnight a crank seal set. Luckily I’ve been riding 2 stoke dirtbikes my whole life so I’m no stranger to crank seal replacements. I was just so thrown off since the bike wasn’t smoking and would start first kick even cold. I’ll be throwing in the new seal or seals tonight if the other side needs it which I doubt.
Ok so the engine is sealed and tight back to jetting…. Tried the full stock settings 230 main and was just running way to rich. I bought a pack of MIKUNI jets and went through several and now ended with a 200 main jet and 32.5 pilot and needle clip on 2 (stock setting?). And now I have full range of power. I can get into the power band easy and runs really good. I feel that it’s a tad rich but I don’t mind since I’d rather have more fuel and oil running through the motor than too little. Ooo and I’m running the a/f screw at 1.5 out. I think if I was better at jetting or had the space to do the plug chops I’d be able to make this thing sing but for now I’m happy and will go out and ride with my buddy’s and see how she performs.
Read your post & I'm currently in a very similar sounding situation. My sons Blaster is running exactly as you described. I'm curious what your final jetting setup was & what mods have been made (pipe, air filter, porting, etc)? Any information that you have would be greatly appreciated. Thanks!
First off it’s bone stock just like it came from the factory. I ended up with a 190 main jet and it’s running really good. The crank seals are easy to replace and the clutch cover gasket is cheap on eBay. Being that everything on my bike is original I’m slowly replacing all the gaskets and wear and tear items just to keep the quad running really good. Honestly this thing has less issues than most my buddy’s on their new 4 stroke machines. Did you happen to do a leak down test yet?
I will be taking the Blaster in to a local shop for a leak down test & a compression test on Monday. I haven't had great luck finding a mechanic that can get it in, get things tested & get me pointed in the right direction, regarding repairs. I have even looked at buying a complete, running, used engine that I could just swap in & have a usable ride for my son for the short time before winter. I purchased the Blaster as a birthday gift for him & I feel terrible that I haven't been able to get it running properly. I've tried to avoid spending money chasing the wrong issue, but at this point I wish I would have taken it to a qualified mechanic right from the start.
Here is the fastest. I found a local shop to look at the Blaster & the guys all seemed nice & friendly...until 1 of them noticed the outline of my big, thick......wallet through my jeans. After that, I had no hope. Even if I yelled out for my friends, "Benjamin! Mr. Jackson! All of my friendly Benjamins, my Mr. Jackson's...hell, they even took the Abes & I thought I saw my old pal Dwight & 2 different men had thier hands on him at the same time. It was terrible & disgusting. It obviously happened to me 1st. Walked in to pay my pill & everyone was nice...too nice. Then all the lights cut out, I screamed out, but it was over in the blink of an eye. It happened to me. I dropped my bike off to a local mechanic because I was in a rush and then... I got f*cred over. I walked in the door thinking I'd see a $150 bill & I'd send a friend, a Benjamin or 2, maybe a few Mr. Jackson's to go on a little vacation with the shop guys. But instantly I saw Dwights head getting stuffed in a strange man's pocket. I saw Benjamin with 2 men, 1 with his hands pulling on the backside of Ben while his pal tried tugging on him from the rear. There were things which I'll never repeat to anyone. Those dishonest wrench turners had it planned out. They forcefully took my innocence, violated my friends & separated all of us. I walked to the register to make sure it was over. I walked like I had a yardstick made from dynamite clenched betwixt my cheeks & an evil wallet r*per shoved some papers at me. It described manual labor that would take a skilled & godly man roughly 1 hour to complete. Considering the spectrum that most of those men were on, they could have spent 2 1/2 hours. I watched as a chubby, dirty, peanut butter covered finger pointed at a big number in the corner of my papers. He didn't know numbers that high, but the ringleader did. "That'll be $749.50, payable immediately. " I said "For a basic compression & leakdown test? You said you'd spend another hour to see if I needed to buy any parts. Then youd call me. Are there a bunch of parts on there, Bootie Bandit Bob?" "Hell no!" yelled the main wearing denim suspenders & not a stitch of anything else. "There isn't a single part worth a single dollar on that whole invoice!" Pay the bill or act like a handsome lady!
I did escape that little handicapped, redneck, ripoff festival, but only after paying over $750 for a compression test, a leakdown test (that I now know with 100% certainty they did not perform, because the exhaust pipe was never removed) and 1 hour of looking over the electrical (which was recently rewired by me & everything worked & tested within Yamahas specs). So I left with a skinnier wallet and a tightly clenched booty. They really wanted to get at both of those things some more, but I just loaded my own bike up & got out of there. Now I need to decide how I should proceed. Being serious for a minute, the whole thing really bummed me out. I spent 15 years working on cars for people doing audio, video, security & convenience systems. I was always amazed at how many people didn't trust us even though we were incredibly upfront & honest & we would warranty anything we touched Forever. Then there were people who would try to lie and get something for free. Just as frustrating. I'd hoped that people had moved on from trying to take what another person had earned, from trying to get something for nothing and above everything else, that people had quit lying directly to each other's faces with no remorse & no embarrassment. The Golden Rule folks, most of us learned it before we could tie our own shoes. If you only do 1 thing, only follow 1 piece of advice or only implement 1 honest teaching in your entire life...Just follow the golden rule. Just do that and people will call you "a good man" at your funeral. Your kids will talk about how wise you were. AND there won't be a whole bunch of people talking about what an ahole you were. I guarantee that some of the people having the "Donnie was a real douche bag" conversations will be wearing robes and hanging out on clouds. To all you good, honorable, trustworthy folks out there, please keep doing what you're doing. Hopefully it will rub off on some people. Do all you dirtbags out there, you know what you've done. Look at yourself in the mirror and out loud, say what the 3 worst things you've done are. Maybe if you explain it to your own dumb ass you'll understand what kind of person you've become. I promise if you see yourself the way that others do, that'll be enough motivation to change your actions, your thoughts & your heart.
Whew! Sorry that was a long one. It was the only way I could do it without stringing together 39 swear words with 3 peoples names mixed in. Haha. I'm out!
