ELECTRONIC VACUUM GAUGE FOR 6 CIL
- Syscrush
- ICOA Member
- Posts: 1765
- Joined: Fri Sep 14, 2012 2:29 pm
- Location: Toronto, ON
- Location: Toronto, ON
Re: ELECTRONIC VACUUM GAUGE FOR 6 CIL
Very interesting work! Glad to see an update on this.
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- New Member & Happy To Be Here
- Posts: 19
- Joined: Wed Oct 03, 2012 5:48 pm
- Location: Granollers/Barcelona/spain
- Location: Granollers/Barcelona
Re: ELECTRONIC VACUUM GAUGE FOR 6 CIL
At last, after adjustment, with the right tool, with fat one it was impossible to enter between the carburetors. CB1 chassis is different from the PROLINK, with long tool carburetors can be adjusted comfortably.
I installed permanent brass adapters with rubber caps, from carbtune:
http://www.ekmpowershop28.com/ekmps/sho ... s-14-p.asp











I installed permanent brass adapters with rubber caps, from carbtune:
http://www.ekmpowershop28.com/ekmps/sho ... s-14-p.asp











-
- ICOA Technical Director
- Posts: 4773
- Joined: Sun Oct 01, 2006 8:05 am
- Location: Knox, PA
- Location: Knox, PA
Re: ELECTRONIC VACUUM GAUGE FOR 6 CIL
Pretty cool! One minor point - it's not the chassis that's different from CB1 to Pro-Link, it's the angle of the carbs. Chassis is exactly the same in that area. You do need the stubby adjuster tool from Honda to do the adjuster between 5&6.
Dave
Dave
-
- ICOA Member
- Posts: 22
- Joined: Tue Apr 08, 2003 11:14 am
- Location: United Kingdom
- Location: United Kingdom
Re: ELECTRONIC VACUUM GAUGE FOR 6 CIL
Very odd, I was sure I posted here yesterday... It's not here now...
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- New Member & Happy To Be Here
- Posts: 19
- Joined: Wed Oct 03, 2012 5:48 pm
- Location: Granollers/Barcelona/spain
- Location: Granollers/Barcelona
Re: ELECTRONIC VACUUM GAUGE FOR 6 CIL
Hello friends
From my experience with other bikes, vacuum in the cylinder has to be larger than zero just before the admission valve opens.
If not, the engine does not spins accurately, it seems that is about to stall at 1000 rpm, you have to raise to 1400 rpm to hear engine spins without noise.
I started researching, insolator carburetors, intake rubbers were ok.
If you put your finger in upon cut-off valve cover, you could feel intake air loss.
Cut-air valve was perforated and the special o-ring was missing.
After changing cut-off valve and o-ring from David Silver Spares everything works much better at 1000 rpm, the engine spins more regular and much less noise.
You can see in the graphic cylinder one before and after replace and put cut-off valve and o-ring.
I´m happy, my bike runs fine, and my machine works too!



From my experience with other bikes, vacuum in the cylinder has to be larger than zero just before the admission valve opens.
If not, the engine does not spins accurately, it seems that is about to stall at 1000 rpm, you have to raise to 1400 rpm to hear engine spins without noise.
I started researching, insolator carburetors, intake rubbers were ok.
If you put your finger in upon cut-off valve cover, you could feel intake air loss.
Cut-air valve was perforated and the special o-ring was missing.
After changing cut-off valve and o-ring from David Silver Spares everything works much better at 1000 rpm, the engine spins more regular and much less noise.
You can see in the graphic cylinder one before and after replace and put cut-off valve and o-ring.
I´m happy, my bike runs fine, and my machine works too!


