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Buell Forum » THUMPer Forum » Blasting Away - The Thumper Quick board » Archive through June 30, 2013 » Ground Clearance « Previous Next »

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Sonicblast
Posted on Thursday, June 27, 2013 - 07:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm scraping on speedbumps when walking the bike.. anything I can do to boost ground clearance?
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Ezblast
Posted on Friday, June 28, 2013 - 03:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Avoid speed bumps - lol
EZ
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Sonicblast
Posted on Friday, June 28, 2013 - 05:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

lol. oh well, I tried.
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Egobuster1
Posted on Friday, June 28, 2013 - 10:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

yeah theres speed bumps at my job in the parking lot and my exhaust hits them every time even if i go real slow over them
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Cgent
Posted on Friday, June 28, 2013 - 12:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

With a tiny bike like the BLAST! is there a possibility of carefully going around the speed bumps ???

You mention that you are walking the bike ... guess it would be a bit heavy to carry across ... LOL
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Gearheaderiko
Posted on Friday, June 28, 2013 - 05:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You could run a custom exhaust, but that might be more trouble and cost than the aforementioned riding around the speed bump.
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Sonicblast
Posted on Friday, June 28, 2013 - 07:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yeah.. That's one of the things I'm considering. I have a guy welding and repairing my exhaust right now because it rusted out...so its on a timer anyways. Some of the speed bumps have curbs around them in my neighbourhood so there's no going around them and I scrape no matter what. I'm considering the Vance and Hines at this point since its the most economical and I'll have to pay Harley $200 to reject the carb because I have 0 mechanical ability, lol.
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Gearheaderiko
Posted on Friday, June 28, 2013 - 09:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Okay.....we'll tell you what jets to buy and it should take a competent mechanic 45 minutes to change the jets. Most of that time will be removing the stock air box. Anybody who is comfortable with the CV carb won't have any trouble changing jets. It's a comfortable 10 minute job without the stock air box on.
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Egobuster1
Posted on Saturday, June 29, 2013 - 08:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

yeah it takes longer to get that pesky airbox out of the way then it does to actually open up the carb and replace the jets.
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Sonicblast
Posted on Sunday, June 30, 2013 - 06:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanks! Recommendations on which jets to buy?
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Gearheaderiko
Posted on Sunday, June 30, 2013 - 09:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

45 pilot/slow jet (stock on many Harley Davidsons).
175 main jet.
2 'shims' (#4 washers) on the needle.
2 1/2 turns on the idle mixture screw (aluminum screw plug will have to be removed, if its not already-very, very common alteration on CV carbs). It's all posted here on Badweb!

Slow jet is a must. You could run either the 2 needle shims or the 175 main jet to save a little on MPG. But running both is best!

*This will get you close or close enough in the carb tuning department and is a very common recommendation.
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