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Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Engine - all topics related to the Motor » Primary Drive and Transmission » Blasted apart! « Previous Next »

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Blasted_man
Posted on Friday, May 04, 2012 - 09:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So i own a 2001(i think) blast and it stopped working a while back. I was passing a car (~70-80mph) when all the sudden i lost power, i could rev the engine, but it would not give me power. on the side of the road i pulled off and shut off the engine. to my dismay when i tried to start it i could hear the starter spin, but is was like it would not catch.

Due to being not very mechanical, i gave it to my uncle to fix for me. He gave me a list of parts, and asked me to find them online. Do any of you guys know where i might be able to find a good deal on a Primary Chain and a Primary Gasket?

Also he says that there is quite a bit of plastic tore up inside the primary, but he couldn't describe it to me or supply me with a name for it. Is it possibly the adjuster shoe that is pictured in this thread: http://www.badweatherbikers.com/buell/messages/201 64/640459.html?1309825853

Thank you guys for your help!
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Ghostedrider
Posted on Friday, May 04, 2012 - 10:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Primary Chain Adjustment: at 1,000 & at every 2,500 mi. interval thereafter.

**Note**The Blast is shipped with a spacer between the primary chain limiting
screw and the locknut. The spacer is discarded at the first service interval.



A inch-pound torque wrench is used to adjust primary chain :

Tighten chain limiting screw to 24 in/lbs
Back-off chain limiting screw 3/4 turn = 4 1/2 'flats' *Practical note: 12
flats more (14 flats out from torque spec is usually golden)is the experienced
recommendation by many. Hold chain limiting screw while tightening jam nut.

Too loose = that box of rocks sound
Too tight = your top end drops to like 65mph and it will throw your idle
off and you can stall out too.

So if this happens after your first service - this is one of the possible
reasons.

Well thats all there is to it, the inch/lb torque wrench would pay for itself
by the fourth adjustment - but its up to you, to justify the expense.

The following method though not recommended is used by many :

Can this be done without a torque wrench? To answer your question, Yes. From a cold start, let the bike get to a warmed up idle, then start tightening the primary chain. When you hear the idle
start to drop, back off 12 flats. I've been doing it this way for the last few chain adjustments, and it is usually within a flat of adjusting it with a torque wrench.
BTW, the reason for a cold start is to set the chain tension with a cold primary.

(Note: A hex nut has six sides, six flats, 1/3 of a turn is 2 flats.)


Chain # 40005-57B
$56.70
Tensioner shoe spring # 24349-00Y
$8.25
Tensioner shoe #39922-00Y
$6.93

Clutch basket washer #37870-91
$7.88

Clutch basket nut #37495-91
$14.18

Front sprocket nut #7839
$3.60
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Ghostedrider
Posted on Friday, May 04, 2012 - 11:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

sorry for some reason it wont let me post you a link google this - its a great buell site

www.buellridersonline
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Swampy
Posted on Saturday, May 05, 2012 - 08:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blastedman,
It is a rare occurance when something happens to the primary chain.
Usually it is the primary chain adjuster shoe that wears out.
From what you have described more than likely your crankshaft nut came loose and took the spline off the crankshaft.
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Blasted_man
Posted on Sunday, May 13, 2012 - 09:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks guys, the list with the part numbers in particular helps.
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