Recent Posts

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Events / Re: Birthday
« Last post by rwgibbon on December 06, 2018, 11:54:07 AM »
Happy Birthday!
Events / Birthday
« Last post by AlanJohn on December 06, 2018, 03:43:35 AM »
Birthday Alan John
175 & 200 Talk / Re: Racer Resurrection
« Last post by BRT-GTR on December 05, 2018, 09:11:36 AM »
          Had similar issue with the GTO when I got it :-     Chain 'chunnering' on the front sprocket when wheel spun, sprocket worn on one side only and a bonus of a clang every time the split link passed/hit the forward chainguard bolt  :D :D.
          Turned out to be a combination of the engine skewed to the left (worn engine mount bushes) and bad rear wheel alignment.     

 First of all, line up the rear wheel with the front using a plank or string (care at this stage ensures the bike steers straight, hands off) then check the sprocket alignment. Books say use a straight edge but not possible on our machines, too many items in the way, so sight it or try a piece of thin cord. Laser tools are available.

   I wouldn't use that sprocket, looks severely worn, teeth slightly hooked ?  Does your chain clear the rear shock, looks very close.
175 & 200 Talk / Re: Racer Resurrection
« Last post by srpackrat49 on December 04, 2018, 09:59:59 PM »
That is normal were,,,,,, just put the dam thing on the track and tell us how runs,,, in a year or 2 !!!!!
175 & 200 Talk / Re: Racer Resurrection
« Last post by al_pritchard on December 04, 2018, 04:50:32 PM »

Progress continues. I didn't notice this before, but their is a bit of wear on the side the the gear. And it's only on the drive gear. You can't see it that well in the photo, but it looks like the engine is cocked slightly left - forward to the left, rear to the right.

I don't feel any binding, but you can hear the "tick, tick, tick" from the chain. Anyone care to hypothesize on the problem? Twisted swing arm, bent frame?

350 Talk / Re: steve reed
« Last post by BS Mechanic on December 03, 2018, 05:17:40 PM »
Where's Steve been?  I've missed his words of wisdom!
350 Talk / steve reed
« Last post by Mike Anderson on December 03, 2018, 08:04:45 AM »
Morning All,
I spoke with Steve Reed yesterday, sounds like he will be returning to the site soon. Hope everyone welcomes him back, it has been a while. Christmas is coming.
Later Mike
350 Talk / Re: Castle Nut Thread Pitch
« Last post by Jeff Bar on November 29, 2018, 10:24:51 AM »
FYI:  Front and rear axle castle nut are chromed on BS 350's Part number 09522-102, cost  10$ each, as I bought 2 from Richard a couple months ago.  Nice chrome NOS correct part. Jeff Bar
350 Talk / Re: Castle Nut Thread Pitch
« Last post by BRT-GTR on November 29, 2018, 08:50:05 AM »
         For our newer members here's a link to the BS thread pitch guide prepared by our dear, late friend Graham Weeks.
        Have only just noticed he didn't cover the wheel and swingarm spindle threads, which is shown above.
50, 60, 90 & 100 Talk / Re: BS50 vs BS90 Muffler
« Last post by RayK on November 27, 2018, 04:18:45 PM »
Hi Rushman
I do know that the header pipe is a different bend angle to the 90 Deluxe/Trail/Mountain. The 90 Sport is different to both 50 and 90s. As for the muffler, the baffle is different on the 50 and 90. It may fit but the performance using a 50 muffler on the 90 may be affected. The mufflers may be different in their homologation.
Others may know more.
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BS Keychain (SOLD)

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