Which Big Bore Kit Should I Buy? - Yamaha Raptor Forum
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Old 01-09-2011, 05:43 PM   #1 (permalink)
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Default Which Big Bore Kit Should I Buy?

Which Big Bore Kit should I get for an 01 660R...Ive been looking at the vitos and the trinity kits for the 720 stroker...What do you guys think?
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2004 Raptor 660R
Yoshi RS3 Full SS Exhaust
K&N Air Filter with Outerwears (No Lid)
Vito's Jet Kit Needle's 2nd from top
160L 165R Mikuni Main's, #25 Pilots, Screws 2L 2.5R
HC Stage 1
Dynatek DFS7-11 Ignition
DG Nerf Bars, Fat Grab Bar, GNC Type II Front Bumper
G Force Adjustable Racing Axle
Flipped Rear Link
ITP Holeshot Front Tires
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MSR AOF Clutch Lever
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Old 01-09-2011, 06:12 PM   #2 (permalink)
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Vitos uses the Barker stroker cranks, and while I'm not sure what is in their "kit" Trinity sells the Hotrods stroker cranks.

There are a lot of threads here comparing Hotrods Vs Barkers, many of them recent. A search through the modifications section should turn up some good reading material
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Old 01-09-2011, 06:55 PM   #3 (permalink)
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All depends wut type of ridin style u do.? And wut ur buildin the bike for and if u wanna run pump or race gas? Also remeber the more cc's doesnt mean the faster the bike im n the process of buildin a 686
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Old 01-09-2011, 10:14 PM   #4 (permalink)
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I would like to stick with pump gas. I don't plan to go crazy with it, but i do want to step it up. I would not be racing any one but friends. The main riding would be trails, fields and some dirt track. The build will not necessarily be for speed. Im in the rebuild process and i do not want to regret not building the motor while it was apart.
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2004 Raptor 660R
Yoshi RS3 Full SS Exhaust
K&N Air Filter with Outerwears (No Lid)
Vito's Jet Kit Needle's 2nd from top
160L 165R Mikuni Main's, #25 Pilots, Screws 2L 2.5R
HC Stage 1
Dynatek DFS7-11 Ignition
DG Nerf Bars, Fat Grab Bar, GNC Type II Front Bumper
G Force Adjustable Racing Axle
Flipped Rear Link
ITP Holeshot Front Tires
Sedona Bazooka MX Rear Tires 20x11x9
Tusk E-Brake Block Off
MSR AOF Clutch Lever
Armadillo Skid & Swing Plate
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Old 01-10-2011, 08:04 AM   #5 (permalink)
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Type of riding will have a lot to do with the headwork/cam aspect but not in regard to the type of stroker crank.

There are a lot of good comparisons out there, the main difference is the HR using an offset wristpin for better rod angles and the Barker using the standard location for more piston choice.
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Old 04-16-2011, 01:32 PM   #6 (permalink)
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I too am browsing BB kits. Jmoore which did you end up with?
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