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Buell Blast Forum - Buell Blast Motorcycles - Buell Blast Discussion



Welcome to the Buell Blast Forum aka the "THUMPer Forum".

For Buell Blast P3 American Thumper-Cycle related questions, technical discussions, and information. Come on in and get some THUMP! : ]

Owner's Manual
application/pdf
Blast Owner's Manual .pdf (590.9 k)

EZ

Got THUMP?


THUMPer Forum: The Buell Blast Forum on BadWeB (for Buell enthusiasts)



to store and compare Blast fuel economy.

Please feel free to add your data to the database. It's very easy and lets you track your mileage and compare to all other Blasts in the database. Please use your forum name when you enter your data.

This is a link to the Blast MPG Data Page

This is a link to the data entry form


Bookmark the form for ease of use.

Enjoy!


Please Note!!!!!!
We are in no way responsible for any damage that may occur in the advice given to help you fix or 'improve' your bike. We are here to try and help, but that does not make us libel for any actions resulting in that advice, you could easily go elsewhere and ask for other opinions, and act accordingly.
Thank you for understanding.

Just cuz - Manuals -
http://buellmods.com
EZ

  Thread Last Poster Posts Pages Last Post
Questions from New Buell Blast Riders - ThumperFAQEzblast1230 61 08-26-15  03:39 am
BLASTARDS ARE WE
Who we are and what makes us tick!
Please feel free to add to the list!
Gearheaderiko489 18 11-14-15  10:37 pm
Got Thump? (Buell Blast Photos)
For sharing photos of Buell Blast Motorcycles (Thumpers in the House)
Ezblast3254 110 03-12-16  02:47 am
Buell Blast Thumper Knowledge Vault
From Carbs to Customizing to High Performance & Racing - All the tech & tricks for Buell Blast Motorcycles, find advice & answers here - or post your questions!
Zroknwn25374 1451 04-27-16  05:06 pm
Blasting Away - The Thumper Quick board
For unique exploration of ideas involving our Thumper!
Marksblast7061 688 04-19-16  08:43 am
Buell Blast Racing!(and track days)Ezblast999 39 06-13-15  05:47 am
Thumper Tales (Tales From the Darkside!)
Ride Reports, Tales of Adventure, "Blasting on the Dark Side", & other stories of Buell Blast Thumpercycling.
Ezblast1798 65 02-01-16  03:24 am
Buell Blast Recalls, Tech Bulletins, Notices, & Concerns
The Buell BLAST! is a great motorcycle, however no bike is perfect - here is a place to post official recalls, tech bulletins, notices, and concerns related to the Buell Blast.
Paul2281222 09-02-13  09:18 pm
Blasting Around (Buell Blast Riding Groups)
Local and regional forums for meeting, greeting, and riding with fellow Buell Blasters (Thumpaholics)
Court590 99 03-11-16  10:31 pm
Pay It Forward: Blasting Goodness! (Trades Welcome!)
Pay It Forward - Buell Blast Parts & Gear: For assistance or to help your fellow Buell Blast riders when in need.



Thrive2drive330 14 10-12-15  05:39 pm
Buell Blast Motorcycle Classifieds...
Buell Blast Motorcycles, Parts, Gear, Accessories - For Sale or Wanted
Conzmoleman2584 537 04-24-16  06:09 pm
Blastphemy!
For non Buell discussions, questions or pictures that do not pertain to Buell.
Patches420 14 12-28-15  08:35 am
ArchivesEzblast16100 552 03-15-14  05:08 pm
Archive through April 09, 2016Gearheaderiko30 04-09-16  09:27 am
Archive through March 08, 2016Copper130 03-08-16  03:56 pm
Archive through December 18, 2015Gearheaderiko30 12-18-15  01:51 pm
Archive through September 22, 2015Chipmyers30 09-22-15  09:02 am
Archive through September 09, 2015Gearheaderiko30 09-09-15  01:01 pm
Archive through July 14, 2015Th3wizard30 07-14-15  12:29 pm
Archive through June 24, 2015Gearheaderiko30 06-24-15  07:47 am
Archive through June 06, 2015Gearheaderiko30 06-06-15  09:31 pm
Archive through May 20, 2015Gashaw4030 05-20-15  06:11 pm
Archive through April 28, 2015Marksblast30 04-28-15  09:46 pm
Archive through April 10, 2015Ezblast30 04-10-15  06:46 pm
Archive through April 01, 2015Chief_ten_bears30 04-01-15  12:17 pm
Archive through February 21, 2015Ezblast30 02-21-15  02:37 pm
Archive through December 23, 2014Ezblast30 12-23-14  12:47 am
Archive through October 08, 2014Ezblast30 10-08-14  11:10 pm
Archive through September 14, 2014Marksblast30 09-14-14  09:30 pm
Archive through August 10, 2014Ezblast30 08-10-14  02:30 am
Archive through July 05, 2014Gearheaderiko30 07-05-14  09:12 am
Archive through June 04, 2014Ezblast30 06-04-14  04:04 am
Archive through April 22, 2014Ezblast30 04-22-14  01:21 am
Archive through April 10, 2014Uneasy_rider30 04-10-14  11:16 pm
         

Please visit the "Got Thump?" section for pics of various Buell Blasts; check out our "Knowledge Vault" for Buell Blast technical questions, look in "Blasting Around" to find who is in your area for rides and "hi!"'s; visit "Blasting Away" to see unique ideas involving the Blast, and visit the "Dark Side" for tales of Blasting adventure! Post at the bottom of the page here for anything else or just to say hi! Welcome and enjoy! : )

Author Message
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Muddhorn
Posted on Monday, April 11, 2016 - 10:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've adjusted and checked everything by the book. Getting ready to try it again, step by step.
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Ezblast
Posted on Tuesday, April 12, 2016 - 05:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The book is to tight for the primary - instead of 5 flats out, do 25 flats out,

For the clutch - start with cable adjusted loose, the get to clutch adjustment at clutch and very very very soft bottom the just past 1/4 turn out - done.
EZ
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Gearheaderiko
Posted on Thursday, April 14, 2016 - 09:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think 25 flats is too excessive (that's 3+ turns) or subjective. Depending on mileage and abuse, chain stretch is going to vary greatly. Cold or hot adjustment will also change adjustment tolerances.
The most accurate way is the the above adjustment (12 flats, 18 flats or 25 flats) and then the "by ear" method. It does take some practice, but certainly well worth it. True, it's also subjective, but if you start with a baseline (12,18,25) and compare the final adjustment with where you started, you'll at least have a clue with how close you are.

I've just noticed over the years where the recommended adjustment gets looser and I think that corresponds to the bikes getting older and some with lots more mileage.
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Wheelman
Posted on Thursday, April 14, 2016 - 04:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I adjusted mine per the manual on a low mileage (2500 miles) Blast and have not noticed any out of ordinary noise.

Btw, my first post, so hello and thanks for all the interesting thumper material to read. I have learned a lot.

I got this 2003 Blast about 4 months ago and have been working it into better condition. As the previous owner's story goes, it had been stored in a steel shipping container for about 12 years and so I first noticed it was in good condition for its age (aside from certain abuses of the original rider).

Apparently during its life in the container, the gas valve was left in the on position, so gradually, as gas evaporated from the carb bowl, more would trickle in, leaving the heavier components of the fuel while the lighter molecules went away. Lss, gummy mess.

I tried to soak the old carb out but had no success and needed to get it running so I bought a new one. This worked pretty well except for a occasional sputter or cough and sometimes a stall at low rpms and cool engine temps. I figured the low jet was a 40 but upon inspection found a 42 same as the original. Then turned out the screw to 2 1/2 and the sputter went away and runs much better on the low rpms. Idle went a little higher though. On the test ride, I opened up the throttle all the way and noticed no problems with the 170 main jet that came with it.

So here is a summary of what I found (screw settings were known to be factory since both old and new carbs had to be drilled and plugs removed to get at the screws):

Original carb: 42 - 170, idle screw 1 1/4 out.

New carb: 42 - 170, idle screw 1 3/4 turns out (recently adjusted to 2 1/2 turns out).

(These are my current settings on an unmodified stock bike).

Hey, did I read correctly that most or all HD's are now being built with this CV carb on them?
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Ezblast
Posted on Friday, April 15, 2016 - 04:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Not really - if no noise then it's fine. If noise go in a few flats - my way works - too many people hesitant and end up still to tight. I really don't want to keep replacing tensioners, better loose than tight. Only way it's too loose is when it starts making noise, and then you just go back a few flats. Too tight always causes issues - pass.
EZ
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Gearheaderiko
Posted on Friday, April 15, 2016 - 09:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

All* carbureted air cooled Harleys in the last 25 years or so use the CV carb. The blast carb has a Throttle position sensor (TPS) and auto enrichener (electric choke) and no accelerator pump. It is essentially the same carb otherwise, but they dont swap as an exact replacement. They use all the same parts besides the aforementioned 3.

* there are some exceptions but they are not worth mentioning.

Your primary chain will be too tight. You won't get the box of rocks noise, but likely a whirring.
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Wheelman
Posted on Friday, April 15, 2016 - 10:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Gearhead,

Hmmm. Come to think I did hear a "whir - whir - whir . . ." with the clutch in and slowing down, but thought it was the Dunlops (no need for the Dunlop warning, I got the message). I'll try another turn or two out and will see if this sound lessens.

Thanks for the response, I'll let you know my results in a few days.

Seems like there are a lot of these Blasts around still with low mileage. I wonder how many were made?

Oh and say, when I drained the primary, I found a red fluid of kind of thin viscosity like automatic transmission fluid. Does this sound like the original primary lube or might it be a replacement done before I got the bike?
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Gearheaderiko
Posted on Saturday, April 16, 2016 - 08:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Approx 22,785 Blasts made!!

Try the "by ear" method. About midway between whir and rattle!

If it's still red, then it's probably been changed.
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Gearheaderiko
Posted on Saturday, April 16, 2016 - 08:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Where in Orange County were you?
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Wheelman
Posted on Saturday, April 16, 2016 - 11:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My family lived in Midway City and I attended Westminster High School. Huntington Beach is about 8 miles west down Beach Blvd. I had a Yamaha 250 then. Don't even recall what became of it.
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Gearheaderiko
Posted on Saturday, April 16, 2016 - 01:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My wife attended Westminster!! Class of '67 I think!! I left the OC 3.5 years ago.
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Tnthumper
Posted on Saturday, April 16, 2016 - 10:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I could have sworn I posted my dyno numbers on here way back when. Can't find the post if I did. Oh well.
Anyways, my blast just got an engine teardown and all new gaskets and other rings. Back up and running strong as ever. First time my 05 has been apart like this.
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Wheelman
Posted on Sunday, April 17, 2016 - 01:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Gearhead,

I left OC in '76 and went to the Midwest. As I recall, it was a wild place to live, probably still is. My sis, Class of '70, got a "Leo" at Westminster. She, a sociologist, once said, due to our situation, I would likely have trouble with authorities. She was not wrong.

I recall getting drunk once at a football game and telling our principal that it was "great to be a Lion" (which is what he always said). That was fun.

That lion statue seemed to be an object that could not be resisted. One evening, I guess as a homage to similar acts by previous classes, my buddy Jeff and I dismasted it from atop of the library. It made a racket and we ran like scared rabbits.

Jeff remains a Yamaha man. Back then we drove 350s. I had a old R2. One day we noticed we were all wearing white tee shirts, and jokingly started referring to ourselves as the white-tee-shirt gang. Those were good times in OC.
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Gearheaderiko
Posted on Sunday, April 17, 2016 - 04:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Lol!! Thanks for the story!
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Wheelman
Posted on Monday, April 18, 2016 - 04:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

OK so, because of warnings (see above) about maybe the manual's spec of 4 1/2 flats out might be too tight, I backed off the primary chain adjuster screw one turn out from the previous 4 1/2 flats, for a total of 1 3/4 turns (or 10 1/2 flats). Listening carefully, I did not notice any difference in whining or whirring noises so I think the noise I hear is all tire noise. For the course threads of the adjusting screw, which are 1/2-inch 13 pitch, each turn out loosens the chain guide 0.078 inches, which seems like a lot. I will leave it at 10 1/2 flats for now and see if all is good. This is on a low mileage Blast approx. 2500 miles.
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Gearheaderiko
Posted on Monday, April 18, 2016 - 04:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think that's good. Your top speed will suffer if it's too tight.
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Ezblast
Posted on Wednesday, April 20, 2016 - 04:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yeah - it will still wear the tensioner - why I say go loose as possible, saves time going back in later. Why I recommend so many flats out - if you don't hear a sound that far out - then you have no worries, if you do then you just go in a few flats in till sound is gone. Too tight messes up a lot of things, least of which is your top end.
EZ
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Wheelman
Posted on Friday, April 22, 2016 - 01:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks EZ and Gearhead,

It makes a big difference to be able to benefit from those who are much more familiar with the Blast and are willing to share their knowledge and experience. I'll be reading and will maybe have comments at a later date.

The Blast is running good now. Next I'll be getting rid of those Dunlops (the back seems about worn out now) and put some of the scooter tires on it.
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Styxnpicks
Posted on Monday, April 25, 2016 - 10:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

intake valve wasnt sealing.
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Ezblast
Posted on Monday, April 25, 2016 - 11:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yup! Who did your head?
EZ
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Styxnpicks
Posted on Tuesday, April 26, 2016 - 08:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

NRHS circa 2009ish

going to hammer for a refresh
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Gearheaderiko
Posted on Tuesday, April 26, 2016 - 10:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Beehive or traditional valve springs? Beehives are much more gentle and don't tend to wear or break stuff prematurely. If you have a choice, then go beehive (my .02).
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Styxnpicks
Posted on Tuesday, April 26, 2016 - 10:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

they are beehives.
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Cherrypoptart
Posted on Thursday, April 28, 2016 - 07:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've tried searching for this type of problem on a blast or any other bike and I haven't found much, so thought I'd ask here.

So I finally got my new tires installed the other day, and since getting it back I've noticed a knocking type noise coming from the rear wheel area, which sounds kind of like something plastic catching every time the wheel rotates. This occurs just when rolling the bike, the bike doesn't need to be running.

I have checked and I can't seem to find anywhere on the belt guard or anything that would be catching. Could it maybe the something with the belt/sprocket? What are your thoughts?
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Ezblast
Posted on Friday, April 29, 2016 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Make sure wheels torqued to proper torque - too tight and wheel bearings go south.
 

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