Hey everyone I have a question/concern I'm hoping someone can help me with. I have an 01 blaster with an fmf gold series fatty pipe, powercore 2 silenced, and v-force 3 reeds. My problem is that my blaster doesn't seem to pull as hard ad it should until I reach higher RPM's or sometimes even until the powerband kicks in, then continues to pull norml through every year. It makes a pinging/rattling sound during the "hesitation" but goes away once she starts pulling like normal. I just did a complete top and bottom end rebuild ( wiseco prolite piston kit, wiseco performance crank assembly, and replaced all gaskets and crank seals. I also had this problem before the rebuild. It doesn't do it all of the time but definately enough to bother me. Any ideas/advice would be greatly appreciated, Thanks !
hesitates until I reach higher RPM's or powerband ?
- Thread starter JBRoc01blaster
- Start date
The first things to check would be the same things we tell everyone "with a problem" air leak test, compression test, clean the carb and replace the plug.
From the sounds of it you are describing a lean condition due to a clogged pilot system.
From the sounds of it you are describing a lean condition due to a clogged pilot system.
If the jets are clean and it passes the leak down test, consider lifting the needle a clip or even 2.
Aright thanks I really appreciate the help ! I'll get on it as soon as I get a chance ( hopefully tomorrow ) and ill post the results. Thanks again for the quick response !
Hey just posting an update from the other day, I bought a new spark plug, cleaned ky carb real good and dropped down my gas to oil ratio from 32-1 to 40-1 ( I use castor oil ) and shes runnin much better today. Still acts up a little until she's warmed up and in higher gears at low rpm's but I feel a huge improvement. I'm gonna get a compression tester soon to be safe, and I know that's somethin I should own and check every now and then. I was told by my local service/parts dealer that I should run it at 50-1 which seems lean to me. Any suggestions on what I should mix it at would be awesome ! I have an 01 blaster with gold series fatty pipe, powercore 2 silencer, v-force 3 reeds, wiseco prolite piston bored .020 over, wiseco performance crank assembly.
I use to run 32-1 along with probably 90% of blaster owners, but I've been trying everything anything to solve the problem I mentioned above with my blaster. I changed the plug cleaned my carb, bought a brand new no toil super-flo air filter, adjusted my air mix screw and it seemed like I was getting too much oil ( my old plug was a little oily and I had a little bit of oil dripping from my exhaust/ downpipe ) I'm still breaking my motor in, could this be why I'm not burning all of the oil efficiently yet ? It said in the manual that an oily/wet plug may be due to the motor not being fully broken in. Once again any other thoughts/info is definately appreciated greatly !
No less than 32:1 unless the oil maker states it on the bottle.
I personally run Castor at 25:1 and with the correct jetting, blow no more smoke, drips no spooge , or foul any plugs.
If you have dropped from 32:1 to 40:1 you will now be running rich, less oil= more fuel and may running too cool, hence not be burning off the oil.
You may need to drop at least one size in the main jet, then plug chop.
I personally run Castor at 25:1 and with the correct jetting, blow no more smoke, drips no spooge , or foul any plugs.
If you have dropped from 32:1 to 40:1 you will now be running rich, less oil= more fuel and may running too cool, hence not be burning off the oil.
You may need to drop at least one size in the main jet, then plug chop.
When cleaning carb take it completely apart. Quick douche with spray isn't cleaning it. I prefer to soak them in berrymans. Look closely at pilot jet to be sure ALL the tiny holes are open. I'm like Blaster and run more oil, 28:1 Benol . Don't know if your problem is when stabbing throttle or just rolling into it. What main are you running? What are needle clip and air screw set at? Air cleaner clean?
YOU have to determine where the problem is when running at a constant throttle opening.
YOU have to determine where the problem is when running at a constant throttle opening.
I took the whole carb apart when I cleaned it ( I use name brand carb cleaner with the power jet nozzle ) and made sure every hole in the pilot jet and all other jets were perfectly open and still had a good circular shape. my air screw is set at 1 and 1/2 turns out as recommended in the manual. My blaster idles well after a minute of warming up and after riding. I don't have a problem between 0-1/8 to 1/4 throttle opening or after a few seconds of wide open throttle and then can go through every gear at wide open throttle with no issues. I have not adjusted my needle clip and I believe I have the stock jets that come in the mikuni carbs. Are the numbers/ sizes on the jets ? If so I can take my carb apart today and post my jet sizes so there's more information to work with, hopefully making it easier to diagnose the exact problem.
If you are running stock jetting main that is it is wayy lean! take the main jet out and see what number is on there, with vf3's and fmf fatty pipe , Most guys are in the 260-290 range. stock is 230, -Bob
I took the whole carb apart when I cleaned it ( I use name brand carb cleaner with the power jet nozzle ) and made sure every hole in the pilot jet and all other jets were perfectly open and still had a good circular shape. my air screw is set at 1 and 1/2 turns out as recommended in the manual. My blaster idles well after a minute of warming up and after riding. I don't have a problem between 0-1/8 to 1/4 throttle opening or after a few seconds of wide open throttle and then can go through every gear at wide open throttle with no issues. I have not adjusted my needle clip and I believe I have the stock jets that come in the mikuni carbs. Are the numbers/ sizes on the jets ? If so I can take my carb apart today and post my jet sizes so there's more information to work with, hopefully making it easier to diagnose the exact problem.
I took the whole carb apart when I cleaned it ( I use name brand carb cleaner with the power jet nozzle ) and made sure every hole in the pilot jet and all other jets were perfectly open and still had a good circular shape. my air screw is set at 1 and 1/2 turns out as recommended in the manual. My blaster idles well after a minute of warming up and after riding. I don't have a problem between 0-1/8 to 1/4 throttle opening or after a few seconds of wide open throttle and then can go through every gear at wide open throttle with no issues. I have not adjusted my needle clip and I believe I have the stock jets that come in the mikuni carbs. Are the numbers/ sizes on the jets ? If so I can take my carb apart today and post my jet sizes so there's more information to work with, hopefully making it easier to diagnose the exact problem.
Sorry didn't mean to post the same message 3 times. I'm goin out to check now and will post back my numbers soon. Thanks for all the help/guidance ! I can't wait for her to be runnin like I want her to 
Your right, my main jet reads 230 which is stock jetting as you said. What do you think would be best for my set up/mods ? My jug is also bored .020 over and I'm running the wiseco prolite piston and wiseco performance crank assembly. I use castor oil and would like to mix either 32-1 or 40-1. The castor oil recommends mixing 20-1 or 60-1 and I definately don't agree with either of those ratios.
Lol nope that's definately not the case, I appreciate all the help and I know not to bite the hand that feeds you ( or in this case the hand that typing tryin to help you ) haha
