2005 Raptor 660 - Yamaha Raptor Forum
 
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post #1 of 10 (permalink) Old 08-24-2019, 02:31 PM Thread Starter
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2005 Raptor 660

I have a 2005 660 raptor se it has k&n air box and air box cover full Yoshi exhaust and header I need to re jet it when I’m in 5th gear pinned after like 10 seconds it suffers for gas and dies if that’s the problem what jets do I need someone please tell me if that’s the problem before I buy a jet kit
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post #2 of 10 (permalink) Old 08-25-2019, 06:02 PM
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Sounds like you are running out of fuel... You either need to raise the float level or unplug the petcock or fuel cap vent.

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'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo
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post #3 of 10 (permalink) Old 08-31-2019, 02:02 PM Thread Starter
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How would I raise the float?
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post #4 of 10 (permalink) Old 09-01-2019, 12:15 AM
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Have you looked for obstructions yet? They are much more likely.

For float level here you go:

https://www.raptorforum.com/forums/6...explained.html

'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo

Last edited by QuadManiac; 09-01-2019 at 12:30 AM.
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post #5 of 10 (permalink) Old 09-02-2019, 09:42 AM Thread Starter
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Obstructions like what??
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post #6 of 10 (permalink) Old 09-02-2019, 05:44 PM
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"You either need to raise the float level or unplug the petcock or fuel cap vent."

Remove the fuel line from the LH carb, put it in a gas can. Turn on the fuel petcock - let fuel run for at least 5 minutes... does it flow vigorously and never slow down or is it real slow and/or slows down over time? IF it slows down over time, there is probably something plugging up the fuel cap vent - unscrew the cap - does it flow now? I once had a spider crawl up and die in my fuel cap vent tube - that was enough to cause the engine to starve for fuel after a few minutes.

If it's just flowing slow, it could be the filter in the petcock. Switch to reserve - does it get better? Reserve doesn't have a filter. Remove and clean the petcock.

Just use logic to make a theory of why you lose fuel after a few minutes of heavy use... and figure out ways to prove or disprove your theory!

It's time for you to download and read the manual and start to understand the components and their functions.

'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo

Last edited by QuadManiac; 09-02-2019 at 05:52 PM.
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post #7 of 10 (permalink) Old 09-06-2019, 11:45 AM
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Take the jets out, all they do is restrict fuel flow into the throat.
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post #8 of 10 (permalink) Old 09-07-2019, 01:53 AM
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Quote:
Originally Posted by Adult life View Post
Take the jets out, all they do is restrict fuel flow into the throat.
Gee, why not just remove the carbs and run the fuel line straight into the intake manifold?

'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo
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post #9 of 10 (permalink) Old 09-07-2019, 03:07 PM
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Cut out the middle man, like your style

Quote:
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Quote:
Originally Posted by Adult life View Post
Take the jets out, all they do is restrict fuel flow into the throat.
Gee, why not just remove the carbs and run the fuel line straight into the intake manifold?
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post #10 of 10 (permalink) Old 09-07-2019, 06:15 PM
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Quote:
Originally Posted by Adult life View Post
Take the jets out, all they do is restrict fuel flow into the throat.
[QUOTE=Adult life;3452525]Cut out the middle man, like your style[/QUOTT]

Confusing statements like this only complicate the OP's understanding of necessary repairs. It's best to keep to yourself and laugh without posting.

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