In message <(E-Mail Removed)>, Champ
<(E-Mail Removed)> writes
>On Thu, 18 Mar 2010 22:46:12 +0000, Mike Buckley <(E-Mail Removed)>
>wrote:
>
>>Bad form etc. The pilot jet fixed the idle problem but can anybody
>>explain when ignition advance should kick in? The CB has a spring
>>mechanism on the cam shaft which advances the ignition, on mine it
>>appears to be advancing as soon as you open the throttle, I thought
>>advance happened higher up the rev range?
>
>Yeah, but only a tiny bit higher up; my dim memory says that full
>advance should be at about 2,500 rpm, or perhaps even a little lower,
>so you don't need hardly any throttle (in neutral) for that.


I need to ride the thing to see if it's worth pursuing the advance
timing further I think. Being unable to adjust the front brake so I can
push the bike with it off and not push it when it's fully on is proving
somewhat of a challenge at the moment, so no test rides.

--
Mike Buckley
RD350LC2
CB72

"Mike Buckley" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...

> Weak advance springs ...
> ..can be replaced, possibly without removing the camshaft, but even so the
> engine has to be dropped in the frame.
>

It's been a while but aren't they behind the points plate? I don't see why
you would have to drop the motor or do anything with the cam.

T.

In message <4ba484f7$0$17883$(E-Mail Removed) >, Terry
Richards <(E-Mail Removed)> writes
>
>"Mike Buckley" <(E-Mail Removed)> wrote in message
>news:(E-Mail Removed)...
>
>> Weak advance springs ...
>> ..can be replaced, possibly without removing the camshaft, but even so the
>> engine has to be dropped in the frame.
>>
>
>It's been a while but aren't they behind the points plate? I don't see why
>you would have to drop the motor or do anything with the cam.
>
>T.
>
>

They're on the camshaft in the middle of the top of the engine, only way
to get them is to drop the engine in the frame so the top cover can be
removed to get access.

--
Mike Buckley
RD350LC2
CB72

Mike Buckley <(E-Mail Removed)> wrote:

<snip>


Seen this?

http://tinyurl.com/yj7g3xt

(used silencer on eBay)


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

"Mike Buckley" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
> In message <4ba484f7$0$17883$(E-Mail Removed) >, Terry
> Richards <(E-Mail Removed)> writes
>>
>>"Mike Buckley" <(E-Mail Removed)> wrote in message
>>news:(E-Mail Removed)...
>>
>>> Weak advance springs ...
>>> ..can be replaced, possibly without removing the camshaft, but even so
>>> the
>>> engine has to be dropped in the frame.
>>>
>>
>>It's been a while but aren't they behind the points plate? I don't see why
>>you would have to drop the motor or do anything with the cam.
>>
>>T.
>>
>>
>
> They're on the camshaft in the middle of the top of the engine, only way
> to get them is to drop the engine in the frame so the top cover can be
> removed to get access.
>

It's weird that I don't remember that and I'll be damned if I can think of
any reason to put them there. I'm not disputing your word, it's just plain
weird.

T.

In message <1jfntx2.16sc12a1mona80N%totallydeadmailbox@yahoo. co.uk>, The
Older Gentleman <(E-Mail Removed)> writes
>Mike Buckley <(E-Mail Removed)> wrote:
>
><snip>
>
>
>Seen this?
>
>http://tinyurl.com/yj7g3xt
>
>(used silencer on eBay)
>
>

Hmm, ta, <watches> the left silencer on mine has been rechromed but
there are weak spots that are already showing through, mostly hidden by
the footrest.

New exhaust systems are $700 from the US.

--
Mike Buckley
RD350LC2
CB72

In message <4ba5055a$0$17866$(E-Mail Removed) >, Terry
Richards <(E-Mail Removed)> writes
>
>"Mike Buckley" <(E-Mail Removed)> wrote in message
>news(E-Mail Removed)...
>> In message <4ba484f7$0$17883$(E-Mail Removed) >, Terry
>> Richards <(E-Mail Removed)> writes
>>>
>>>"Mike Buckley" <(E-Mail Removed)> wrote in message
>>>news:(E-Mail Removed)...
>>>
>>>> Weak advance springs ...
>>>> ..can be replaced, possibly without removing the camshaft, but even so
>>>> the
>>>> engine has to be dropped in the frame.
>>>>
>>>
>>>It's been a while but aren't they behind the points plate? I don't see why
>>>you would have to drop the motor or do anything with the cam.
>>>
>>>T.
>>>
>>>
>>
>> They're on the camshaft in the middle of the top of the engine, only way
>> to get them is to drop the engine in the frame so the top cover can be
>> removed to get access.
>>
>
>It's weird that I don't remember that and I'll be damned if I can think of
>any reason to put them there. I'm not disputing your word, it's just plain
>weird.
>
The points bolt directly onto the head, removing them just reveals more
of the end of the camshaft, to get at anything else the top covers need
removing which means dropping the engine in the frame or removing it
completely. When the top cover is removed you can see the cam lobes, the
tops of the valve springs and the advance mechanism which I think is
around the same place the two parts of the camshaft are locked together.

--
Mike Buckley
RD350LC2
CB72

Mike Buckley wrote:
> In message <1jfntx2.16sc12a1mona80N%totallydeadmailbox@yahoo. co.uk>, The
> Older Gentleman <(E-Mail Removed)> writes
>> Mike Buckley <(E-Mail Removed)> wrote:
>>
>> <snip>
>>
>>
>> Seen this?
>>
>> http://tinyurl.com/yj7g3xt
>>
>> (used silencer on eBay)
>>
>>
>
> Hmm, ta, <watches> the left silencer on mine has been rechromed but
> there are weak spots that are already showing through, mostly hidden by
> the footrest.
>
> New exhaust systems are $700 from the US.

If you don't need a genuine one, there's a chap near me (S. Norfolk) who
will make you stainless steel ones - pipes too.

--
Rusty

In message <ho4u88$a07$(E-Mail Removed)>, Rusty Hinge
<(E-Mail Removed)> writes
>Mike Buckley wrote:
>> In message <1jfntx2.16sc12a1mona80N%totallydeadmailbox@yahoo. co.uk>,
>>The Older Gentleman <(E-Mail Removed)> writes
>>> Mike Buckley <(E-Mail Removed)> wrote:
>>>
>>> <snip>
>>>
>>>
>>> Seen this?
>>>
>>> http://tinyurl.com/yj7g3xt
>>>
>>> (used silencer on eBay)
>>>
>>>
>> Hmm, ta, <watches> the left silencer on mine has been rechromed but
>>there are weak spots that are already showing through, mostly hidden
>>by the footrest.
>> New exhaust systems are $700 from the US.
>
>If you don't need a genuine one, there's a chap near me (S. Norfolk)
>who will make you stainless steel ones - pipes too.
>

A closer look at the one on ebay shows it's worse than the one I've got.
Definitely interested in stainless ones. Can you pass on his details
please? toastyhamster at hotmail dot com

--
Mike Buckley
RD350LC2
CB72

Naqerj wrote:
> Rusty Hinge wrote:
>
>>
>> If you don't need a genuine one, there's a chap near me (S. Norfolk)
>> who will make you stainless steel ones - pipes too.
>>
>
> Stainless + Norfolk = Paravanni?

Check

--
Rusty