ET: Engine (Twin) Grosset Part Needed - PLEASE

[Bazlerker]

The Engineer expert did think this, so maybe you are right, I guess I will have to get another, and do it all again, it is actually not too difficult, hence hoping for the Yamaha part number so I get one from another batch perhaps, I cannot find this in a grosset parts list though.
Many thanks.

Francois speaks excellent english…just call him

 

[craig]

Hi Kerry , can you post pictures of this mechanism so those of us who have not seen it apart can learn ?

 

[kerry]

Francois speaks excellent english…just call him

Any idea of his phone number please ?

 

[kerry]

Hi Kerry , can you post pictures of this mechanism so those of us who have not seen it apart can learn ?

When I get it sorted, yes, not a difficult job though, much easier than I thought, that said to install from new I would not be capable off, but dismantling/repairing is straight forward.

 

[Bazlerker]

Any idea of his phone number please ?

Pm sent..

 

[Peter Holmes]

I doubt very much that Francois will promote purchasing a Yamaha part from another source, and I also doubt that Yamaha would suffer from a bad batch of anything, that is why they, and the other big three eclipsed the British motorcycle industry back in the day, quality control etc.

 

[Cyborg]

OK, so firstly I am not casting any aspersions on expert installer, but I was fortunate enough to have my electric start installed by Francois Grosset, and was able to watch and learn from the process, and mine has been faultless so far, I really hope this continues, my Rapide is in a standard state of tune, with type Amal type 29s well set up, and running a B-TH mag, no back fires, never use the decompression lever as Francois advices against.
Good Luck
Peter

Why would he advise against using the decompressor?

 

[Cyborg]

I'm not sure which gear this is but when they were first devloped I noticed that one of the gears was sintered. That is how they make Oilite. I had never heard of sinered gears but when I looked into it I found that items like con rods and rocker were also made by sintering; so much tougher that I would ever expected. Have you looked at the two failed gears and are they sintered? I'm just wondering if there has been a faulty batch.

I hazard a guess the most gears made for Japanese motorcycles are sintered.

 

[Peter Holmes]

Why would he advise against using the decompressor?

I really have no idea, perhaps he just considers that the gearing is such that it is not necessary, or does it increase the chances of a backfire with the exhaust valve lifted of the seat, it is the exhaust valve isn’t it? I suppose I should have enquired, but my observation is with my bike it is not necessary to do so.

 

[craig]

According to my parts list, there are two double gears
Big reductor double gear ES3
Small reductor double gear ES4
Which gear is this broken?