Rhino 250 Bogging

GillyGang · 03-27-2018, 02:46 PM

Ok....here goes. Brand new model. During idle and giving it a little bit of throttle it makes a whooshing sound from the new designed air filter. Every 5th or so tiny rev of the throttle it will stall. Like it chokes out. When riding it bogs(usually at the top of the gear or at full throttle). It seems like there is only a idle screw on this carb. I checked for leaks and it seems ok. Attached are some photos.

GillyGang · 03-27-2018, 02:49 PM

air filter

**JerryHawk250** · 03-27-2018, 03:35 PM

These carbs come with 98 main jets which are too lean. You will need to go with a larger main jet. Some of the Rhino guys can help you with jet sizes.

GillyGang · 03-27-2018, 04:13 PM

Thank you

Mudflap · 03-27-2018, 05:23 PM

Mine came with a 94 main jet which I replaced with a 98 after switching to a pod filter. Plug looks about right but the stock pilot jet is too lean.

**JerryHawk250** · 03-27-2018, 05:33 PM

Quote:

Originally Posted by Mudflap

Mine came with a 94 main jet which I replaced with a 98 after switching to a pod filter. Plug looks about right but the stock pilot jet is too lean.

I stand corrected.

I'm thinking of the mikuni carb. Either way the stock carb will come tune lean.

GillyGang · 03-28-2018, 10:01 AM

rich

**JerryHawk250** · 03-28-2018, 10:05 AM

Quote:

Originally Posted by GillyGang

rich

Check to make sure the choke is all the way in the off position at the carb. Chock cable might need adjustment. It will run on half chock but bog when giving throttle.

GillyGang · 04-17-2018, 09:32 AM

Ok guys...here was the fix. I set idle to two turns back and a little more. I noticed the choke was "off" but was too far in the off position going past off. The quad runs perfect and I'm very happy. I have plenty of torque in 2018 model. Climbs perfectly with plenty of power. Im 6 250lb. Handles well and is nimble. Provides just enough flex and absorption. Shocks are good and the chain is heavy duty and hasn't budged. Rear shock and swing arm needed tighten after about 30 miles. Frame welds look like 8th grade shop class in areas but they all are sturdy. On the first oil change after break in, i noticed a normal or lower amount of shards on the magnetic drain plug. The plastics fit and finish left a lot to be desired and was a pain to line up and bolt down correctly. (only complaint thus far) The racks vibrate on top of the frame and that was little annoying. I placed foam door seal under the parts that rattled. I treat 93 with lucus ethanol stable and using lucus synthetic oil (must be broken in with natural oil) purrs like a cat with no smoke or sputter. In general I would say they addressed outstanding complaints in this model. Anyone labeling these junk or not good are simply ignorant or pissed they spent alot of money, dont have a one or are riding around in a 15yr old rag tag they at the payed double for. I ordered mine from Texas Motor Sports off of ebay. I payed a little more then I should because I wanted trade assurances and good customer service after hearing inflated or exaggerated horror. I spoke with the gentlemen a few times on the VIA phone and email and he was concerned and respectful.

03-27-2018, 03:35 PM	#3
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,713	These carbs come with 98 main jets which are too lean. You will need to go with a larger main jet. Some of the Rhino guys can help you with jet sizes. __________________ 2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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03-27-2018, 04:13 PM	#4
GillyGang Join Date: Mar 2018 Location: NJ Posts: 8	Thank you Thank you
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03-28-2018, 10:01 AM	#7
GillyGang Join Date: Mar 2018 Location: NJ Posts: 8	plug is black rich
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03-27-2018, 05:23 PM	#5
Mudflap Join Date: Sep 2014 Posts: 1,929	Mine came with a 94 main jet which I replaced with a 98 after switching to a pod filter. Plug looks about right but the stock pilot jet is too lean.
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04-17-2018, 09:32 AM	#9
GillyGang Join Date: Mar 2018 Location: NJ Posts: 8	Ok guys...here was the fix. I set idle to two turns back and a little more. I noticed the choke was "off" but was too far in the off position going past off. The quad runs perfect and I'm very happy. I have plenty of torque in 2018 model. Climbs perfectly with plenty of power. Im 6 250lb. Handles well and is nimble. Provides just enough flex and absorption. Shocks are good and the chain is heavy duty and hasn't budged. Rear shock and swing arm needed tighten after about 30 miles. Frame welds look like 8th grade shop class in areas but they all are sturdy. On the first oil change after break in, i noticed a normal or lower amount of shards on the magnetic drain plug. The plastics fit and finish left a lot to be desired and was a pain to line up and bolt down correctly. (only complaint thus far) The racks vibrate on top of the frame and that was little annoying. I placed foam door seal under the parts that rattled. I treat 93 with lucus ethanol stable and using lucus synthetic oil (must be broken in with natural oil) purrs like a cat with no smoke or sputter. In general I would say they addressed outstanding complaints in this model. Anyone labeling these junk or not good are simply ignorant or pissed they spent alot of money, dont have a one or are riding around in a 15yr old rag tag they at the payed double for. I ordered mine from Texas Motor Sports off of ebay. I payed a little more then I should because I wanted trade assurances and good customer service after hearing inflated or exaggerated horror. I spoke with the gentlemen a few times on the VIA phone and email and he was concerned and respectful.
	1