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Trouble Shooting Rhino 660 Basics

This is a discussion on Trouble Shooting Rhino 660 Basics within the RuttingRhino.com forums, part of the Sponsor Forums category; The most common problem with the Rhino*660 and 450 as well is fuel being siphoned out of system back to tank while sitting...this makes for ...


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Old 03-03-2012, 01:15 PM
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Trouble Shooting Rhino 660 Basics

The most common problem with the Rhino*660 and 450 as well is fuel being siphoned out of system back to tank while sitting...this makes for very hard starts...

The second most common problem is idling, warm-up, and all around run-ability due to a wide variety of air/fuel/spark problems...

The third most common problem is backfiring and/or popping on decel and/or down-hilling...

The common denominator is always fuel...or lack of it...it should be the first thing you check...

When it comes to power when you floor it...the biggest gain there is on a rhino 660 is at the intake with proper jetting...a good high flow intake with correct fuel curve...even with stock exhaust...cures a lot if ills...

It is a myth/bunk-story that you need an airbox to make the stock carb work right...the opposite is true...a good high-flow-intake with correct jetting will make the carb function infinitely better all around in addition to a lot more power to the wheels with vastly improved throttle response...especially at higher elevations...lack of air flow at the intake is a serious draw-back of the 660...especially in years 05-07...in 2004 they did not have the rubber snorkel from air box lid to engine cover...bigger main jet...they had more power...less noise...but still need a bigger pilot jet...we recommend to anyone needing a snorkeled intake to make a custom one with large I.D. pipe...get an adapter to clamp on a kn filter...

If you don't need a snorkel...odds are you don't need an airbox...however...you can simply remove the rubber snorkel from your airbox lid...seal off the hole in your engine cover to block off noise/dust...re-jet the carb...that what we call running 04-style...

If you don't need and airbox...and are not a foamer (foamers refuse to use fabric filters under any circumstances)...our custom 3" intakes feature custom made for us...heavy-duty-off-road-fabric...rock solid mounting...fit like a glove...filters have huge surface area to continue to have high-flow-capacity even when very dirty...make great power even with a stock exhaust...less noise in cab than stock intake on years 05-07...

Whenever it is not starting/idling/running right follow the basics...

1. Verify fuel-delivery to the carb...this is infinitely easier with transparent fuel lines...every fuel-delivery/fuel-line-kit we sell has transparent-fuel-lines...

2. Verify fuel level inside float bowl at idle/revved in neutral...and again at time of malfunction...every fuel-delivery/fuel-line-kit we sell lets you do this...

3. Check connection/condition of spark plug/wire/cap....

4. Test with airbox lid OFF...see how it runs...that does not mean go dirt riding with a loose filter...it is just a quick test...floor it from a stop...

5. Tune carb...we sell the jets you need...and provide tech support to our air/fuel customers...

With one of our premium fuel delivery kit installed and a carb tune...95% of the time the problem is resolved...the fuel delivery kit makes isolating/identifying/recovery infinitely easier any time you have any starting or run-ability problems...including the ability to manually-pump-fuel thru the whole system to overcome problems like vapor-locking, stuck floats, or fuel siphoned back to tank while sitting...

Please read these threads for specific product information...

______Cranky 660

________pumpin gASS

Jet kit

DIY Dyno-tuning Rhino 660

?...got AIR...?

Thank you for looking...and happy motoring...
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Last edited by RuttingRhino; 03-03-2012 at 06:16 PM.
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rhino 660 air intake, rhino 660 backfiring, rhino 660 cdi, rhino 660 fuel delivery, rhino 660 fuel filter, rhino 660 jet kit, rhino 660 performance, rhino 660 vapor lock, rhino 660 won't idle, rhino 660 wont start, ruttingrhino air intake, ruttingrhino fuel kit, ruttingrhino.com


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