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V50 first ride and an electrical query

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George View Drop Down
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    Posted: 28 Sep 2019 at 20:44
Hi Chris - thanks for the reply. I have a looked into an exploded diagram of the carbs and I think that the diagram of Eurocarb is not actually the VHB fitted to the Mark 2 (as you eluded to). From the parts diagrams that GUTSIBITS have sent me the carbs fitted to the Mark2 do not have the O rings and washers at the idle and slide screws. Thanks again - George.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote c13pep Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 19:39
On the PHBH carbs (V50/3) the o ring sometimes gets left behind in the hole when the idle screw is removed. However V50/2 runs different carbs so not sure whether they are similar to the PHBHs, if they are fitted then they are important as they seal the adjusters and keep them air tight.

CHRIS
you can`t have any fun in a straight line

Monza
Honda CB77 project

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George View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote George Quote  Post ReplyReply Direct Link To This Post Posted: 28 Sep 2019 at 16:20
Hello to All - I have another query this time regarding the carburettors on my V50 Guzzi. Having decided to fit new needles and atomisers I noted on the Dellorto parts drawing on the EUROCARB website that there are O rings and washers listed as fitments to the idling screw and slide adjusting screw. My manual however does not show or mention the O rings or washers and my machine does not have them fitted.
Best Regards - George    
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2019 at 18:53
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George View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote George Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 21:29
Gents - thanks for the comments regarding the chargers. I will probably go for the CTEK equipment, my friend has one of these units which has given good service and was bought to replace his earlier OPTIMATE.
Best Regards - George.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 17:02
I believe the CTEK automatic charger is one of the best on the market. I have the 3.6 Amp one.

When it comes to batteries, the capacity in Amp Hours is the most important  part. The CCA figure must be adequate, but not so important.
All batteries lose capacity over time, so the more AH you start with the longer it will usually last.

Newer AGM batteries require a charge rate of at least 2 Amps, many battery conditioners won't supply this.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 16:32
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Post Options Post Options   Thanks (0) Thanks(0)   Quote George Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 13:51
Hi and thanks for the comments from which I feel that, although the compression may be down, it's really not too bad and is at least equal on each pot. I have checked the tappet clearances. The left hand cylinder figures were ok according to the manual - the right hand figures were a little up but these have now been adjusted. I will be investing in a battery conditioning unit and I'm going to take a look at a friends set up to see how he's laid it out. Regarding the battery that had been checked out earlier - the check can't have been very good as the battery when new was only rated at 280CCA (not the 399 as I was advised). Thanks for the input to date and best regards - George.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 13:19
That's certainly the ball park figure.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote c13pep Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 12:53
I think I have seen a calculation somewhere, possibly on here, that gives the psi rating for any given compression ratio
14.7 x bikes compression ratio = psi reading
Hence my Monza should read 152 ish psi
Can`t vouch for this but in my case it`s pretty accurate

CHRIS
you can`t have any fun in a straight line

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 12:45
Re the battery, it won't charge at idling speed. Every start up will use more juice and it won't properly be replaced until actually ridden a few miles. Me I would contrive to use a battery charger in the interim and a power socket to plug it into is so much easier and more convenient than removing the battery to recharge  or using clamps. 


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 12:31
That means there isn't a problem with compression. That figure would go up considerably when hot.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote George Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2019 at 11:01
Good morning to everybody - just a quick update on the compression check. With the engine cold and throttles open both cylinders were the same at 120 psi.
Best Regards - George.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2019 at 22:19
100psi with a cold engine and throttles shut is quite respectable I would say.
The more important thing is that they are both the same.
Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dennis menace Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2019 at 20:13


The thing is whoever designed the original regulators and rectifiers couldn`t have been that bad as lots of them are still operating well, in my case some 39 years later.

CHRIS [/QUOTE]

You are right of course but my original rectifier was shot when I bought the bike. By using the combined regulator /rectifier I found enough space for a larger battery
Dennis
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