inner rotor weight?

[J3NNINGS_024]

hi all, i got a dirtmax yx 150 for the bike build a few weeks and i was shocked at how little torque it had. my old ducar 125 with a full flywheel pulls wheelies easy peasy in second gear but the 150 struggles to pull the front up even in first.

im positive that the IRK is the culprit, being such a small weight and all. anyways i was just curious if an inner rotor weight would increase my torque alot as i'm not really keen on buying a ORK. if an inner rotor weight is the way to go, would this fit??


Inner Rotor Weight - For Kitaco - CRF50 XR 70 50 CRF70 : eBay Motors (item 300338100341 end time Feb-08-10 00:32:15 PST)

 

[SGONE]

yep they fit i run 1 on my yx150cc have'nt had a chance to test it yet though but everyone tell me they're the way to go if you like inner rotors. they add around 10 ounces i think, so it would help with the torque side of things how much i dont know, if you do decide to order 1 order it through factory motorsports website postage is cheaper that way

 

[wogtaz ryder]

And don't forget yx150's are naturally a top revver , with the small 53mm stroke . so they wont have very good bottom end

 

[J3NNINGS_024]

cheers sagaone, i think i'll get 1. if there's not a great improvement then i'll probably go with a ORK anyway.

And don't forget yx150's are naturally a top revver , with the small 53mm stroke . so they wont have very good bottom end

yeah wogtaz, once the revs pick up (with a bit of help from feathering the clutch) the engine just hammers along. its just in the tight stuff you have to try and keep the revs up or it'll stall......which is a pain in the a$$