Just want to say thanks for the help on the carb jetting. The 280 is working perfect. My next question is on sprocket combos. Im running a 13/45 setup now, but im thinking of changing to a 14 front. What is everyones opinion on great wheelpulling, holeshot, fold the %$&* on sprocket combos? And it needs to be compatable with the port job in the near future.
Question for the masses part2
- Thread starter BDBRACING
- Start date
go with either the stock 13/40 or go with 14/40 which is what a lot of ppl run. The 14/40 combo will feel like it pulls harder as well.
13/45 anit that close to a 11 front you must top out at like 30 lol id got with 13/40 or 14/40 like brute said
13/40 is the stock ratio. 55 would be huge, thats like dirtbike size. I believe the lowest you can go on the stock hub is a 38T, and you can go lower with i think its a trx 250r rear hub (not 100% sure on that, iirc it was some honda hub).
Edit: it seems that this forum enjoys replacing the % sign with % That would be the cause of all the broken photobucket links for the first photo in each post
Edit: it seems that this forum enjoys replacing the % sign with % That would be the cause of all the broken photobucket links for the first photo in each post
mine had a 12 / 40 when i bought it and i couldnt shift the damn thing fast enough and it had no top end at all would rip ur arms out in first gear though lol
here's a post i made a while back explaining how to calculate gear ratios and how some of that stuff works
Yamaha Blaster Forum - View Single Post - top end and bottom end ?? sprockets
Yamaha Blaster Forum - View Single Post - top end and bottom end ?? sprockets
With the stock 13/40 gearing and just open airbox/270 re-jet, mine shows 56.5 on a handheld GPS for top end. Seemed like it ran out of gearing before running out of power, so going to a 14 might get you to 60 at the expense of some acceleration. Though honestly I seldom use 5th, and even more rarely 6th where I ride so top end isn't that big of a deal for me. Typically run in either 3rd or 4th for the woodland trails around me, only use the top gears when running down a road or across a field.
I ran a 13/42 (18 inch tires) for awhile looking for the holeshot, but all it really seemed to do was spin tires and require shifting gears so much faster. A 13/45 would be even worse. I've now gone the other way, 14/40 feels good, tops out well, and it still has the grunt for a 2nd gear launch. True I have a bit more motor than before but the 13/42 was only good for climbing hills.
you will be surprised, with a 14/40 gearing over 13/40 you might actually gain more acceleration. that is if you have the power.
like if you have good power through out the rpm range, a bigger gear ratio would be better. it would require less shifting.
personally for hill climbing, i liked the taller gear ratio. you can launch 2nd, get some speed without shifting into 3rd then you can check the rpms up without having to shift down usually.
like if you have good power through out the rpm range, a bigger gear ratio would be better. it would require less shifting.
personally for hill climbing, i liked the taller gear ratio. you can launch 2nd, get some speed without shifting into 3rd then you can check the rpms up without having to shift down usually.
