I just got a new chain and sprockets and i was so exited to ride! So i start my engine up and rev it a little in neutral and it bogs down! It starts right up but if i bring the throttle a quarter to half throttle it just bogs and refuses to go to high rpms. This has happened before right when i put my gold series fatty pipe on it. But it stopped after i ride it and got the engine hot. its been monthes and it has been running like a champion! but now i drive for miles and it continues to bog down! My main jet is 260. so it is not to big or small. I cleaned my carb. I checked the fuel/gas mixture and it is running 50/1. I took off the top of the head and dried all the oil. I got a new spark plug. But i have the same results. It ran like a champion before this happened.

Has anybody experienced or know what is going on with this blaster.

thanks for reading guys.

 

sounds like you have an obstruction in the main jet

 

hey can you come over tonight and help me? cause i dont see how else what you said can help me..

 

I need some serious answers guys please.

 

pull the plug out, spark plug will tell you all you need to know, could be just a dirty carb that needs cleaning, stuck fuel bowl, could be to rich or to lean.

 

Have you tried fresh fuel?

Adjust your idle air screw. It may be rich or lean. Should be about 1.5-2 turns out.

 

omfg i figured it out! it was my parking break! YouTube - 2003 Yamaha Blaster N00B