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3 Aug 2007
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Crank shaft question
Hi guys.
Is there someone out there who knows if there is a diffrence between a 86 1vj crank chaft and the crank shaft from a 94 3TB engine? Since the 3TB has TCI ignition it has a smaller diameter on the flywheel than the CDI system on the 1vj. Is the stroke and timing degree the same on these two engines?
cheers.
Tom.
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Places to be and things to do, see you all out there!!
Cheers.
Tom.
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3 Aug 2007
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Join Date: Jan 2001
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Shaft and conrod
I seem to remeber that the main engine dimensions (bore, stroke) are identical. Most probably the crankshafts themselves are identical. As for timing, doesn't matter, just how you set the camshaft.
The conrod is, I think, different.
To make sure, compare part numbers.
Auke
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5 Aug 2007
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wierd starting problem
Thanks Auke
Yes that is right conrod is diffrent,but lenght is the same so that is okey.
I have spark ,fuel and the timeing is set as it shuld be but the bike still woun´t start up. When I crank it it fires up at once just to die off again. I have never experienced anything like it before. To me it seems like a timeing issue.But verything is set according to the manual.
In desperation I tryed to put an other carburator on yesterday,but it still behaves the same way,it´s just wierd.
Any ideas what might be wrong?
Tom.
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Tom.
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5 Aug 2007
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If it starts then dies you either have fuel feed problems or something electrical is breaking down when it warms up. Unless you mean it misfires at higher revs then runs ok at low revs, in which case the timing is retarded.
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6 Aug 2007
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No, it´s not like that. When I crank the engine, it ignites straight away,rotates one time and dies.i´t will keep on doing this for as long as I run the starter.
I have set the timeing too the marks, and cheked that the piston reaches TDC. everything seems to be okey.
I suspected that it was the magneto that was not in possition,since Im useing a CDI system on the engine now (originaly TCI) But everything lines up just like it did on my old 1vj engine.
Im seriously running out of ideas what to do:confused1:
It´s annoying,being so close too getting it running again,and then run in to this mystery problem.
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Places to be and things to do, see you all out there!!
Cheers.
Tom.
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6 Aug 2007
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Suspicion ...
That you have built a 1VJ engine into a 3TB frame. So, an engine with the stator and magneto for CDI ignition, the CDI installed on the 3TB 'platform'. Are you sure that the wiring loom is as it should be for CDI ignition?
Auke
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