viper help please

[jlebrun_05]

I was wondering if anyone has any tips for changes (gearing, clutching, helix, etc) I should make before going out west this year. Everything in the driveline is stock, besides the 156 track, and i just picked up some slp ceramic coated triples, so i am not sure how to set everything up. Most of my riding is done in the 8-10,000 range climbing and boondocking. any help or tips are greatly appreciated.

 

[RXMax]

SLP setting are pretty close clutching wise. I would start with those. Use the baseline jetting for the pipes and let the veriflow do the work. I ran SLP triples on my Mountain Max with an ATAAC and it worked great with SLP clutching.

 

[jlebrun_05]

with the longer than stock track, do i need to worry about changing the helix more or gearing?

 

[snowdad4]

did you change the stock helix to a 43,(i think) as reccomended by slp? i know this made a big difference on maintaining target rpm's. anytime you go longer and higher, regearing makes a huge difference. 19/40 or even 18/40. both compatable with the stock 68 link chain.

 

[RXMax]

I was running a 151 and their specs were for a 141 and i fouond them to be pretty darn good. Never hurts to gear down though. It can help keep the clutches cool as well.

 

[jlebrun_05]

regearing makes a huge difference. 19/40 or even 18/40. both compatable with the stock 68 link chain.

what is the stock gearing going to be, or will i be changing the drive gear or driven gear.

 

[RXMax]

You would be changing the top gear. Stock is 21/40 Stock Chain is 70P so you would need a 68P chain too

I more than likely have a chain and gear if you need them.

 

[Sixat38]

RXMax is correct on the stock gearing & chain for Mtn Viper. And, also as he said, gearing down never hurts. I'm riding at 3-6000 feet with SLP's and running 20/42 gearing. That way I didn't have to switch to a 68 link chain. I'm also running a 3 pitch 162" track so that adds into the drive ratio equation a little. In my secondary I have 48/42 helix with a Yamaha silver spring twisted up to 80 or 90*. My buddy ran a staight 43 helix with good results also.