mag10
Adjunct
Reged: 01/16/08
Posts: 576
Loc: Wisconsin
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it would still work with the pieman module. The pickup head itself is moved relative to the flywheel. Prior to retarding the timing I had some issues with knock on hot days or with lower octane gas. The idea was suggested by D&D as they had similar issues with their turbo charged bikes.
the picture shows the retarded pick up head.
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05 speedmaster - 904cc, 12:1 JE racing pistons, thunderbike cams, ported and polished head, scepter pipes, blueprinted manifolds, 39mm FCR's
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sharp21
Member
Reged: 07/07/08
Posts: 55
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Interesting. Is it just a case of loosening off the sensor & then moving it over? How do you tell when you are at 8 degrees?
S.
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mag10
Adjunct
Reged: 01/16/08
Posts: 576
Loc: Wisconsin
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Quote:
Interesting. Is it just a case of loosening off the sensor & then moving it over? How do you tell when you are at 8 degrees?
S.
yes and no. it is as simple as moving the sensor over, and no because as it is layed out from the factory the sensor can only be moved about half a degree.
in the previously posted picture (look closely) you can see there is an adapter under the pickup head, that is what is setting the timing.
I can post a drawing of the timing adapter if you wanted to make one up for yourself. or, If you can view acad file I could PM one.
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05 speedmaster - 904cc, 12:1 JE racing pistons, thunderbike cams, ported and polished head, scepter pipes, blueprinted manifolds, 39mm FCR's
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sharp21
Member
Reged: 07/07/08
Posts: 55
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I've got Autocad. I'd love a copy if you dont mind
S.
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mag10
Adjunct
Reged: 01/16/08
Posts: 576
Loc: Wisconsin
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Quote:
I've got Autocad. I'd love a copy if you dont mind
S.
(oops)it appears that I cannot attach a file to this forums PM. It you would PM me your actual email address I will gladly send you the drawing.
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05 speedmaster - 904cc, 12:1 JE racing pistons, thunderbike cams, ported and polished head, scepter pipes, blueprinted manifolds, 39mm FCR's
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Gregger
Oil Expert
Reged: 04/07/07
Posts: 2371
Loc: Timmins, Ontario
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Micah,
I'd appreciate it if you could post a simple drawing of the adapter plate. Probably could go in the tech vault.
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03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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mag10
Adjunct
Reged: 01/16/08
Posts: 576
Loc: Wisconsin
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Quote:
Micah,
I'd appreciate it if you could post a simple drawing of the adapter plate. Probably could go in the tech vault.
drawing of adatper with parts list
drawing of flywheel timing diagram for 270 degree motor/ pick up head.
this adapter should work the same on a 360 motor but I have not tried it.
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05 speedmaster - 904cc, 12:1 JE racing pistons, thunderbike cams, ported and polished head, scepter pipes, blueprinted manifolds, 39mm FCR's
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Gregger
Oil Expert
Reged: 04/07/07
Posts: 2371
Loc: Timmins, Ontario
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Thanks Micah,
Much appreciated.
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03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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ce7871
Adjunct
Reged: 01/10/11
Posts: 312
Loc: Baltimore MD
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Ok, so I have bill gatelys brother Steve doing my big bore kit. I am very impressed so far, these guys are triumph alchemists. With the the addition of the air box removal, big bore kit, and bigger front sprocket, I also needed a preformance clutch kit, in that the the new torque output slips the standard clutch at around 4.5 rpm in 4th gear!! Oh yeah, daddy like!
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My Darn Funny Signature!
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KaiserSoze
Oil Expert
Reged: 05/09/06
Posts: 2150
Loc: Chicago, IL
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So jealous. I really want a 904 but i'm poor. 
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2013 GREAT RIVER ROAD RALLY
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