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September 25th, 2017, 06:33 AM   #81
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surely that 16/38 gearing is way too tall for even your 650?

or is it an overdrive?

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September 25th, 2017, 07:36 AM   #82
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I had 16/42 on originally but i found I was hitting the top of the revs far to often in top gear. So Iíve dropped the rear. Only went to 38 as I had one available. Feels good to be honest.


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September 25th, 2017, 08:34 AM   #83
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well I've just gone to 40/16 so we'll see....!

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September 26th, 2017, 07:42 AM   #84
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Today I decided I didnít like the original clutch and front brake fitted to my berg. They rattled and didnít feel too good.

So Iíve replaced them with Ducati 999 ones.

The levers cane with and not really my choice. The master cylinders are a little bit bigger than I expected. But they are all fitted and working.




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September 28th, 2017, 10:58 PM   #85
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Just did a quick mot search for bergbro trying to find some info on his 650.

So decided to check mine.

This is the one when I bought it. From DCR in Preston


Then I sold it to these guys who prepped it and passed it. Iím not sure when they sold it.



Then this is the next MOT


Itís not been used then for 5 or 6 years! It pretty much was the bike I sold!


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October 1st, 2017, 07:54 AM   #86
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Been back in the garage today. Stripped my spare head down ready to fit to my 2002 and upgrade all the parts

Hereís what Iíve found

dvsk
nice clean inlet valves
newer can with decomp n stronger spring



It all looks good to me? Anyone see anything of concern or anyone think of anything I should do or check?

Iíve got a new cam chain ready to fit, just need a few gaskets and Iím good to go!


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October 1st, 2017, 07:57 AM   #87
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I did notice two of the valve were a little stuff to remove? It was one of each type to. Not both exhaust or both inlets.


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October 1st, 2017, 08:23 AM   #88
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just swop them around a bit to work out whether it is a guide problem or a valve problem.

you have to be so careful with those old heads because the collect groove seems OK but there's always a 'chip inside the spring housing on the stem and then this has to come down through the guide. I use my old micro file set....after I've done my nails (of course darlings!). I think the chip is caused by the bottom edge of the collets.

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October 3rd, 2017, 10:20 PM   #89
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Gregs 2002 FS650 project / rebuild.

Last night I managed to get the head in the house to have a good look round.

Iíve noticed that some of the valves have marks on them around 1 inch from the top. It looks as if they have been catching between the oil seal and valve guide?

The scratches are horizontal and not along the length of the valve.



It looks as if the valves havenít been quite straight and have rubbed.

So do you guys think I could dress the valves and guides or is that impossible with the tolerances involved. Wasnít really planning on spending a fortune on the head.

I do need some new oil seals... but canít seem to get the old ones off!

Oh and one thing I did spot was on that first picture the valve has a slight flat on it. Both inlets have it. Itís not on the back sealing face just the bottom? Any ideas?


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October 4th, 2017, 02:38 AM   #90
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it would help if you read the post above yours Greg..... I reckon your kids are stopping you from sleeping and you're falling apart mate!

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