Just got a 03 yamaha blaster on trade for a old jon boat this is my first atv but I've owned several dirt bikes (mostly 250 two strokes) the bike is completely stock. The kid I got it from said it needed a clutch because it was " slipping when you got on it" upon further inspection it needs a front sprocket the clutch is fine I have about $1000 in the blaster just wanted to hear your thoughts and ask you if I should go with a lower or higher tooth ratio sprocket when replacing it? Thanks!!
First time atv owner
- Thread starter 454jz
- Start date
I think a 14/40 ratio is what most folks run. But you will need to replace both sprockets and chain all at once to avoid further issues down the road.
Ok I wasn't sure if I needed to replace them all or
Not. What about the whole auto oil and gas mix? Should I get rid of it to avoid issues?
Gear ratio depends on a lot of things. What size rear tires are you running? What type of riding do you do? Do you plan on doing any mods to the motor?
Il be doing alot of trail riding but I love the bottom end power and being able to stand the bike up off the line. As far as mods go I'm thinking about
Doing a full fmf fatty exhaust, new air filter, +4 rear swing arm,wider rear axel and possibly a Vito's 240 kit if really like the bike
I would run 13/40 with 20" tires. Then run 14/40 when you do the mods. I have changed just a sprocket before. You just want to make sure your not putting a new sprocket when the chain and other sprocket has some wear on them.
The rear sprocket shows no signs of wear and the chain looks good. The guy I got it from used it to tow his drag car
Even though the sprocket and chain looks good, how do you think the front sprocket got worn out.
Because the chain is stretched and ramping up the front sprocket teeth.
Rule of thumb, replace the whole set or pay the ultimate price of a broken case or an amputation.
