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So I was out in Glamis this past weekend, trying the 525 at the drags. My mods are Trinity full exhaust, JD Jetting, 13 tooth front sprocket, Airbox snorkel removed and skat trak 8 paddle Haulers (21x12x8) set to 4 psi. For the life of me I can't launch this bike in 2nd gear!! It bogs and falls on its face like the gearing is too tall?? Should I go up 1 tooth on the rear sprocket?? Any tips would be helpfull guys!!
 

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So I was out in Glamis this past weekend, trying the 525 at the drags. My mods are Trinity full exhaust, JD Jetting, 13 tooth front sprocket, Airbox snorkel removed and skat trak 8 paddle Haulers (21x12x8) set to 4 psi. For the life of me I can't launch this bike in 2nd gear!! It bogs and falls on its face like the gearing is too tall?? Should I go up 1 tooth on the rear sprocket?? Any tips would be helpfull guys!!
I don't think 1 tooth is going to make a big difference on the rear. Maybe you have too much paddle? A 6 or 7 paddle would get spinning alot easier, and thats what you want for 2nd gear starts....
 

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Go to a 12 tooth front it is the cheapest way to test...I run a 13 front with 22" Edges at times and it is still tall gearing, but better than stock...those 21's are tall once the tires start spinning as they increase in diameter quickly ...the 72mm stroke on these engines doesn't let them wind up as quick as the 62mm to 68mm strokes on the Suzukis and Yamahas...

I ride with a guy that runs an 11 tooth front on a Raptor with 22" Rear Haulers...
 

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Go to a 12 tooth front it is the cheapest way to test...I run a 13 front with 22" Edges at times and it is still tall gearing, but better than stock...those 21's all tall once the tires start spinning as they increase in diameter quickly ...the 72mm stroke on these engines doesn't let them wind up as quick as the 62mm to 68mm strokes on the Suzukis and Yamahas...

I ride with a guy that runs an 11 tooth front on a Raptor with 22" Rear Haulers...
Ole Ralphy... I have never heard of an 11T counter sprocket until i met Ralph and his raptor. Even then I didn't believe him and had to count the teeth...

i take it you made it to africa okay? i called and left you a msg, call me or pm when you get a chance. i got some rzr news for ya... :p

stay safe my friend!
 

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Ole Ralphy... I have never heard of an 11T counter sprocket until i met Ralph and his raptor. Even then I didn't believe him and had to count the teeth...

i take it you made it to africa okay? i called and left you a msg, call me or pm when you get a chance. i got some rzr news for ya... :p

stay safe my friend!
Don't bring my cell with me...so I didn't get your message...you have a PM Dude...
 

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Discussion Starter #6
okay... well I'm not gunna go buy 6-7 paddle haulers, I just got these!! I will try out a 12 tooth front sprocket... anyone know where I can get one? TIA!
 

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also try bumping your tire pressure up to 6psi and then work your way down. youll get more spin less bite .it'll take away a little of the wrinkle wall effect
 

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okay... well I'm not gunna go buy 6-7 paddle haulers, I just got these!! I will try out a 12 tooth front sprocket... anyone know where I can get one? TIA!
I like the way JT Sprockets drills holes around the inner circunference and makes the sprocket lighter than the stock soild sprocket....

Notice they have the light weight selfcleaning sprocket available: (Quads are same as the 450 520 525 530 590 bikes)
http://www.jtsprockets.com/52.0.html
http://www.jtsprockets.com/52.0.html
http://www.jtsprockets.com/52.0.html?&...uid=6440&p=
http://www.jtsprockets.com/fileadmin/files...lf-cleaning.jpg
 

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Discussion Starter #9
I like the way JT Sprockets drills holes around the inner circunference and makes the sprocket lighter than the stock soild sprocket....

Notice they have the light weight selfcleaning sprocket available: (Quads are same as the 450 520 525 530 590 bikes)
http://www.jtsprockets.com/52.0.html
http://www.jtsprockets.com/52.0.html
http://www.jtsprockets.com/52.0.html?&...uid=6440&p=
http://www.jtsprockets.com/fileadmin/files...lf-cleaning.jpg
Cool, thanks a lot LTZ
 

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You also have some parasitic HP loss with turning a chain around such a small sprocket. If it were me I'd get about 4-6 tooth smaller rear sprocket. Otherwise I'd go up 1 tooth on the front and start in 1st.
 

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Discussion Starter #13
8 paddle is just WAY too much paddle for the ktm, go for the 6 or 7.....also try dropping the needle down, it may be bogging from too much fuel too soon
I was out in Pismo this past weekend, I aired up my 8 paddle haulers to 6 PSI... launching in 2nd wasn't a problem anymore!! It was ripping pretty good at the drags, only bikes that were beating me were drag YFZ's... time for more power!!

Right now I have a Trinity full exhaust and a JD jet kit in the engine department... what do you guys think I should do next? Bore the carb? Don't really wanna have to go in the motor if I don't have too...
 

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I was out at Dumont this weekend trying out the extreme haulers. I am running 13tooth front sprocket 7 paddle 20x11x9 on 9" beadlocks with 3.5psi of air and mine was launching like a rocket in 2nd gear I got beat one time by a heavily modded drag banshee. I have the same exhaust as you but Trinity dyno tuned mine with the Twin air Power flow filter and cage. You might want to try that I think they are 150.00. I also run a 50/50 mix of VP110 and 91 octane.
 

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I was out at Dumont this weekend trying out the extreme haulers. I am running 13tooth front sprocket 7 paddle 20x11x9 on 9" beadlocks with 3.5psi of air and mine was launching like a rocket in 2nd gear I got beat one time by a heavily modded drag banshee. I have the same exhaust as you but Trinity dyno tuned mine with the Twin air Power flow filter and cage. You might want to try that I think they are 150.00. I also run a 50/50 mix of VP110 and 91 octane.

I've been out at dumont and pismo with my 8 paddle haulers on 4 lbs psi fmf slip on and jd jetting. Launching in second has never been an issue for me. I'm a big guy too. I smokem at pismo but have a little harder time at dumont. Haven't figured that one out yet aside from better competition.
 

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