TD's 350 - Page 8 - Yamaha Raptor Forum
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post #71 of 75 (permalink) Old 01-29-2019, 08:08 PM
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Valve adjustment??

[U]2006 raptor 700

DMC Force 4's, FCI W/box, Dynatek Fusion
CP 11:1 piston, BaMotorsports porting, HC3
RacersEdge +3TB
YFZ 450 fronts & reworked rear by JOGACA
Trailtech 1 1/8 xbar w/vapor dash & Vapor installed
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PRM Edge Baja bumper w/12" Cree spot/flood bar
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post #72 of 75 (permalink) Old 01-29-2019, 10:31 PM
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When I first brought my raptor 350 home I was having the same problem, i found a lot of shavings in the oil when i drained it, i think it is the crank bearing, and if it is maybe as the motor heats up because of the bad bearing causes it to seize, and then cut out, then making it almost imposible to start again. Leave it a while to cool down and starts again. Could this be likely or is it a long shot?
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post #73 of 75 (permalink) Old 01-29-2019, 10:46 PM
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I'm still lurking. Pull the fuel hose from the carb and check for constant flow into a container. If you can, attach a hose to the bottom of the carb bowl and do the same test. Check the float height and flow. Double check the gas cap vent. It sounds like the fuel is slowly filling the float bowl.

'19 Can-Am X3, RS Turbo, 172 HP, 1300x15 STU #2 paddle, Tribute front, DynaTec controller, cat delete, GTP blow off valve, custom flame wrap, Bent Metal windshield, Blazer wiper, rear window, 48in LED light bar, 14in LED light bar, GTP LED side lights, S3 shock tower brace, aluminum rear pull plate, 5K Badlands winch, dual batteries, 5ft lighted whips, Rugged radio and intercom, interior lights, rock lights, chase lights, over $200 additional switches, YES, street legal with dirt tires.
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post #74 of 75 (permalink) Old 01-30-2019, 09:11 AM
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I think Dez has it. When I first got my 350, it was pretty abused, so I did a lot of work to it. I tested the spark with the plug out and it doesn't have a very impressive spark. Not like a 660 does, that if you accidentally use your body as a ground when testing your in for more than just a jolt........
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post #75 of 75 (permalink) Old 06-28-2019, 02:54 PM
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This is one of THE BEST 350 threads I have read and I'm curious as to what she ended up looking and running like!! Any further developments?

2005 Raptor 350
Pro Circuit T-4 Slip On
Moose Racing Air Filter
AC Racing Nerfs
DG A-Arm Guards
ICON Forged Racing Piston
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