nerdingaround

is this mod just for pipes or would it work for the air filter as well?

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AlabamaRebel

I'm running straight pipes with an open air cleaner. I rejetted and shimmed. If you put on pipes or open the air box, you'll need to rejet at least. Either one will lean out the mixture. If you do something that requires a rejet and the bike still sputters after the rejet when you rip the throttle, then you need to shim. If the bike takes a long time to warm up, you need to go up on the slow jet size.

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TOYS'R'US KID for life!
1986 Honda 250 Rebel
Bobber project done for now.
2007 Shadow Spirit

2ToneBob

Would this be beneficial on a bike running stock pipes, with no mufflers?

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flitecontrol

You shouldn't need the setup AlabamaRebel used on his bike if you have the stock air filter. Maybe just turn the main jet out some more or go to the next larger jet and not shim. If you search the mods section of the forum and find a bike with a setup similar to yours, you could send the guy a PM and ask about their carb setup. Or they may see this post and chime in.

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I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!

2001 Rebel 250, 1989 Vulcan 750
Putting your bike info in your signature helps others help you!

TurboGixxer928

Just shimmed the needle on my bike, open pipes, open air cleaner, and bored .5mm over, this little tricked worked great, bike runs way better

thanks for the tip

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86 Rebel 250, Bobber
06 GSXR 1000, Turbo'd

JunkyardDog

I don't know how you guys stand the sound of open pipes on a Rebel. I admit loud pipes on a Harley sound good to me, but open pipes on a Rebel just sound like a really loud lawn mower. Jerry.

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M00SEnSquirrel

would a glass pack set up be about the same as just straight pipes? and its more of a chainsaw sound then a lawn mower i was considering putting husqvarna badges on before i went to the glass pack set up i have now

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bB2NER

I'm running shortie Emgos with steel freeze plugs in the ends drilled out to the stock outlet size. Sounds deeper and louder than stock without the weedwacker on steroids sound. It retains some of the backpressure so I didn't need to mess with the jetting.

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Current Rides: Drive less Ride more!!!
09' Rebel 250 Bobber (General Lee Tribute)
86' Rebel 250 Limited (black/gold)
79' Hawk CB400T (black)
92' Shadow 1100C (red/silver panels and frame)

swami

this is a good mod for a stock bike because the factory leaned out the A/F ratio so it would be EPA friendly. i did this on a 2007 kaw zzr600 and it gave awesome results and only marginally hurt mpg. i plan on doing this on my dad's '03 rebel 250. you can't make power without burning gas! HTH

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mysteriouslyraptured

So what is the difference between jetting and shimming? What is the difference between their purposes? When should they be added in a mod, or what are the tell tale signs that it is needed?

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