Carb help for a 300ex - Honda ATV Forum
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post #1 of 9 (permalink) Old 04-29-2011, 07:02 PM Thread Starter
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Smile Carb help for a 300ex

Does anyone have a diagram or video or anything on how to clean a 300ex carb? thanks.

Last edited by hondaboy; 04-30-2011 at 08:55 PM.
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post #2 of 9 (permalink) Old 04-29-2011, 07:39 PM
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Quote:
Originally Posted by hondaboy View Post
Does anyone have a diagram or video or anything on how to clean a carb? thanks.
Funny you ask, I was actually working on one now! Won't be ready for a while, because my Moose rebuild kit isn't coming in until next week!

If you want the service manual, you can download it by clicking the link below in my signature. The manual will help some, like telling you how to get the carb off the quad, but won't actually tell you how to take some of the things off like the slide and the jet needle. There are some tricks to it. Use the manual, and any help you need, you can try and post back here. Many guys here to help!

The tools you will need are

1. Phillips screwdriver
2. 6mm, 7mm and 8mm wrenches or small Crescent Wrench
3. Flat head screwdriver

Here is a video of a kid cleaning a dirt bike carb. It's somewhat close, but the 300ex carb is actually MUCH different, if that makes any sense! LOL

YouTube - How to clean a dirt bike carb

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> Click Here for Answers to Cleaning, Compression, Jetting, Carb Issues, Model Specific problems etc.

>> Click Here to Download your Service/Repair Manual



1996 TRX300FW - ITP Mudlites Warn XT25 (Current Project)
2001 Suzuki LT A50
2003 TRX300EX
2006 Polaris Sportsman 90 - 2 inch lift
2006 TRX250EX - Maxxis Razrs
2007 Suzuki King Quad 700 4x4 - ITP Mudlite XL
2008 TRX450ER - No Lid, HRC Kit, 162 Main, 45 pilot, 55 leak jet

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post #3 of 9 (permalink) Old 04-30-2011, 08:19 PM Thread Starter
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Thanks so much man. I think it needs cleaned real soon, because right after i got done riding today it was cutting out.

Last edited by hondaboy; 04-30-2011 at 08:26 PM.
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post #4 of 9 (permalink) Old 04-30-2011, 08:22 PM
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Originally Posted by hondaboy View Post
Thanks so much man. I think it needs cleaned quick because right before i got done riding today it was cutting out.
No problem, I left out a tool you will need, either a drill bit or an awl or a very small punch to take the pin out of the float. Make sure you go in the correct direction, It takes very small taps with a small hammer to get the pin out!

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> Click Here for Answers to Cleaning, Compression, Jetting, Carb Issues, Model Specific problems etc.

>> Click Here to Download your Service/Repair Manual



1996 TRX300FW - ITP Mudlites Warn XT25 (Current Project)
2001 Suzuki LT A50
2003 TRX300EX
2006 Polaris Sportsman 90 - 2 inch lift
2006 TRX250EX - Maxxis Razrs
2007 Suzuki King Quad 700 4x4 - ITP Mudlite XL
2008 TRX450ER - No Lid, HRC Kit, 162 Main, 45 pilot, 55 leak jet

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post #5 of 9 (permalink) Old 04-30-2011, 09:11 PM Thread Starter
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if i would get jets what is the best kind of pipe to get?
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post #6 of 9 (permalink) Old 04-30-2011, 10:20 PM
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Depends what you want to spend. HMF slipon or FMF Powercore 4 (full exhaust) are about the same price. HMF claims 10% increase in HP. Not sure what FMF claims but any of those 2 is better than stock.

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> Click Here for Answers to Cleaning, Compression, Jetting, Carb Issues, Model Specific problems etc.

>> Click Here to Download your Service/Repair Manual



1996 TRX300FW - ITP Mudlites Warn XT25 (Current Project)
2001 Suzuki LT A50
2003 TRX300EX
2006 Polaris Sportsman 90 - 2 inch lift
2006 TRX250EX - Maxxis Razrs
2007 Suzuki King Quad 700 4x4 - ITP Mudlite XL
2008 TRX450ER - No Lid, HRC Kit, 162 Main, 45 pilot, 55 leak jet

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post #7 of 9 (permalink) Old 05-01-2011, 09:11 AM Thread Starter
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Anyone have a cheap hmf pipe?
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post #8 of 9 (permalink) Old 05-01-2011, 09:14 AM
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Quote:
Originally Posted by hondaboy View Post
Anyone have a cheap hmf pipe?
To be honest you don't see many people getting rid of those. If you're hard for cash, save up and buy an FMF full system exhaust for $249 shipped on ebay!

.
.
> Click Here for Answers to Cleaning, Compression, Jetting, Carb Issues, Model Specific problems etc.

>> Click Here to Download your Service/Repair Manual



1996 TRX300FW - ITP Mudlites Warn XT25 (Current Project)
2001 Suzuki LT A50
2003 TRX300EX
2006 Polaris Sportsman 90 - 2 inch lift
2006 TRX250EX - Maxxis Razrs
2007 Suzuki King Quad 700 4x4 - ITP Mudlite XL
2008 TRX450ER - No Lid, HRC Kit, 162 Main, 45 pilot, 55 leak jet

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post #9 of 9 (permalink) Old 05-01-2011, 12:29 PM Thread Starter
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ok sounds good what are the best jets for a 300?
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