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421 Serval


robert.b.west

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Figaro yes and yes. You will need a coolhead and custom domes. And a larger radiator would be recommended imo. These cylinders get quite hot hey. I'm also planning a similar setup. 35mm pwks and either cpi or sniper pipes.

 

Need input on gearing. I was thinking 15/42 - I have 22" inch dirt tyres. Anybody??

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guys I'm starting my build this month probably next week i will buy the suspension and tires etc... so i was wondering what will i be best off with Serval dune ported and 35pwk on Sheerers or CPIs? also should i use Hanson full clutch parts or lock up ? will i need a cool head for the bike and a larger radiator ? :confused:

 

I personally love the cpi's but have no experience with shearers.

 

The stock clutch has components have worked for me with no issued although I do have a lockup. I added it after my second ride. From personal experience it depends on what you are doing if you need a lockup on a serval. If you are doing just general dune riding I would say some good clutch plates and hd springs would be just fine. Up at Silver Lake we drag race quite a bit on wet sand. Once the clutch started to get hot it would not hold while drag racing. I got an under cover lockup and love it.

 

I think that a cool head is pretty much a necessity.

 

I run the stock radiator and never have had any cooling issues. I have a in line temp gauge coming out of the head and the highest temp I have seen was 180 f.

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I am running a 15/41 with 22" paddles but I think that I like the stock 14/41 with the 22's better. 15/42 would probably work pretty good on dirt. I just have a hard time wrapping out 6th on the sand with the 15/41.

what kind of tiers and rims do you recommend for dune riding size and make i want the lightest possible. also can you go side was on the banshee with those tires ? how do you like the swing arm ?

I am basically going to buy the same set up you have +4 swing arm http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=400251339241 how do you like your +4 swing arm and is this one good ?

also i want to buy a +1forward +2 wide a arm in the front and a +4 Axel in the back

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=380374734571

 

Pips http://www.ebay.com/itm/120799868261?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

or

http://www.ebay.com/itm/290624005827?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

Lone Star Banshee Axle+Hubs+Sprocket+Brake Hub+Lock Nut

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=380378873881

 

Pro Design Mega-Flow Water Impeller Yamaha Banshee 350

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=400248691164

 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=140620751941

 

http://www.ebay.com/itm/350388953982?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

http://www.ebay.com/itm/220839734116?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Enlarge

 

Sell one like this

 

Lone Star Banshee Axle+Hubs+Sprocket+Brake Hub+Lock Nut

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=380378873881

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Try some r2 pipes, haven't heard a bad thing about them!

i bought the R2 pipes :clap: now i need help on the rest of the list i have

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Good choice!!!

thanks i saw your bike and had to get some like it it just looks so nice :headbang: . how do you like the +6 swing arm can you go sideways in it ?

I'am buying the serval kit today or tomorrow and was wondering if you had any port job done to yours if so where from and how does it run?

also i how do you like the hanson clutch is the leaver lighter? i am getting one too but not sure yet

http://www.ebay.com/itm/350388953982?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

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I don't have any problems pitching my bike sideways or doing donuts etc. No porting on the Serval just cleaned up the casting flaws. Clutch pull seems the same to me but I hear that the MSR east pull clutch lever does wonders, also you can always run softer springs and use a lockup. I'm running no lockup so I have to use stiff springs on my clutch.

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I don't have any problems pitching my bike sideways or doing donuts etc. No porting on the Serval just cleaned up the casting flaws. Clutch pull seems the same to me but I hear that the MSR east pull clutch lever does wonders, also you can always run softer springs and use a lockup. I'm running no lockup so I have to use stiff springs on my clutch.

what was the size of your rims and tires and where can i get them ? do you have the .125 dugles or the .190 ? which one should i get for sand riding ?

where did you do the clean up on the casting flows and how much ?

also where can i get the MSR east pull clutch lever? are they the same as the hydrological clutch ?

what is the difference between the lockup and the Hanson and which one works best for our Servels ? I mostly ride the dunes and some time drag

and what is your thoughts on ceramic coating the piston heads and domes ?

also should i get a +4 or 6 swing arm and what make is yours ?

how do you like your suspension ? should i get the fox evo front and rear elka with linkage

http://www.ebay.com/itm/Laeger-Fox-Evol-Float-Long-Travel-Kit-Yamaha-Banshee-/380374734571?pt=Motors_ATV_Parts_Accessories&vxp=mtr&hash=item589019d6eb

or

 

all elka ?

http://www.ebay.com/itm/Laeger-Elka-Stage-4-Long-Travel-Suspension-Kit-Yamaha-Banshee-350-1991-2012-/140613660176?pt=Motors_ATV_Parts_Accessories&vxp=mtr&hash=item20bd3a2e10

 

sorry for the many questions I just am in a hurry to buy the parts :D

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