Yamaha blaster won't idle and bogs down. engine problem

[Increda Boy]

I was riding my blaster up a hill at full rev when it seemed like something in the cranks slipped and it bogged down. Whenever i start it, it doesn't idle and when riding from a dead stop, it bogs way down unless i keep the rpms way up. It's nearly impossible to ride it from a complete stop (but i can still run it as long as i keep the rpms up). I may have melted the rings or the gears? any help would be nice. Im only a kid and don't know much about these things.

 

[CarGuy420]

do a compression test, and a leakdown test. go from there. could be a number of things, but if compression is way down and leak test is no good then you've got head problems. so do those 2 things first IMO

 

[Increda Boy]

ill do a compression test later today and get back to ya. i think i may need to get a new piston cus it hasn't been replaced for years and i just recently i began riding it hard. leak test is another good option.

 

[Increda Boy]

I did a compression test and got 120 psi. I checked the reeds and they were fine. Cleaned out the carb and jets, and the jets are fairly new(stock).

 

[CarGuy420]

hmmmmmmmm i guess you didnt do a leakdown yet?
The only other things i can see that might cause it would be carb, air filter, spark plug, coil.....

I'll let someone else chime in on it and see if they can come up with anyting else

 

[Zwiser]

is it all stock

 

[Increda Boy]

I have vforce 3 reeds with dmc alien exhaust system. I just put in a new 300 jet (stock 230) to see if does anything. Same effect as stock. Im also running a 32:1 mix. Popped in a new spark too and I have a fairly new K&N air filter with no lid.

 

[CarGuy420]

hmmmmmmmmmmm
i'm stumped....really. do a plug chop, take pics, see how it looks

 

[Increda Boy]

Hey thanks for your help. I fixed the issue by putting in a new spark. The new spark I put in before must have been fouled because of water.