Jetmaniac Big Bore 781

[stevenpcrimson]

Jetmaniac 781 big bore motor. These motors are excellently ported and make great power. Motor has about 40 hrs. Even 180/180. Comes with Mikuni 38s & adapters, Boyesen dual stage carbon reeds, and reed spacer. I can include some bed plates if needed.

Sold

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[stevenpcrimson]

Bump


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[stevenpcrimson]

Bump updated price


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[SteveC]

What is that tan colored stuff in the top half of the case opening for flywheel?

 

[ngerk]

Epoxy reinforcement. Standard practice on ported cases.

 

[SteveC]

Epoxy reinforcement. Standard practice on ported cases.

I suspected epoxy, but can’t hurt to ask. Thanks.

 

[JetManiac]

Good deal for someone.

 

[SXIPro]

The 781BB from JM is an attitude adjusting engine. Dead of winter here and I am smiling just thinking about riding mine.

 

[Storbeck]

I'm a little curious, are these things usually built as actual 781cc's (85.5mm) or do people usually go with 85mm (771) to leave an extra "freshen up" bore option?

Anyway, sweet motor good luck with sale.

 

[JetManiac]

Most start at 85mm, some intl guys start at 84mm. This is typical, most XS865 start at 827.

 

[stevenpcrimson]

Bump


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[Jcary85]

Can’t believe this hasn’t sold. My 781 is a BEAST. Hits much harder then a lot of much bigger motors. This is a steal!! I have a review thread somewhere and lots of videos of flips with mine if anyone is interested.

 

[Alyaryoor11]

Bump


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Does that deal include shipping international.

 

[SXIPro]

Does that deal include shipping international.

No, the ad states PLUS shipping and Paypal:

Short block $1800
Carbs/intake/reeds/reed spacer $200

Drop in ready 2k + shipping & pp

 

[JetManiac]

Can’t believe this hasn’t sold. My 781 is a BEAST. Hits much harder then a lot of much bigger motors. This is a steal!! I have a review thread somewhere and lots of videos of flips with mine if anyone is interested.

http://www.x-h2o.com/index.php?threads/jetmaniac-blue-781-backflip-capable.196137/

My note to buyer of this motor: Unless the reed spacer is needed for the reeds setup to clear epoxy in intake, then remove it. Increases the case volume and decreases power off the bottom. But will still hit fine with the spacer, just even better without it. BTW, this is a $3500. package new so a smoking deal for a low hour clean used motor.

 

[Trubski]

is it an oem crank or sbt?

 

[Erik Jolliffe]

is this a 61x/62t setup? I have 62t electronics and flywheel etc. Just curious if this would work?

 

[JetManiac]

is this a 61x/62t setup? I have 62t electronics and flywheel etc. Just curious if this would work?

62t cases/61x cylinder. It will work with 61x or 62t electrics as long as flywheel and stator are both T or both X.

 

[stevenpcrimson]

Hot rods crank


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[Trubski]

Thanks for the info. Can the reed spacer be removed, or is it used to clear the epoxied cases?


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