Roo's Viffer

[Laverdaroo]

Baboon, tish


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[Oddjob]

Please stop, the audible groan of pity coming en mass from the forum for your crap joke collection is hard to bear


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Hey, that's an original joke I'll have you know. I made that up on the spot.

[Laverdaroo]

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[Oddjob]

Hey that reminds me.

Guess what I bought the other day.

An original handbook for the CB550F, goes under the seat. Really good condition as well. Also got a CB550F toolkit as well.

[McCabe-Thiele (Ted)]

Back to your bike Roo - have you got the Viffer actually running yet or has the tropical weather stoped progress?

[Laverdaroo]

Tried to fire her up earlier and exactly the same problem not firing either front two. I span the motor about 4 times by the crank before buttoning it all up and all was spot on. Try and start it, coughs  and farts and is obviously timed wrong. Just taken it all apart again and indeed the exhaust cam has jumped two teeth. I’m good at the front, good on the inlet at the rear, it’s just the exhaust cam that moves. Baffling but I’ll start again and have another go!

Bit tedious but needs sorting so still at it for a while yet. Think I might take the FI off again and check all the connectors to the front two but I’m spit on I think. We’ll see…….


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[davidcumbria]

View from 10000 feet seems most likely to be timing rather than FI. Are the plugs wet,  is it possible to see an injector working removed from engine ? Good luck Roo.

[K2-K6]

Squirt a little e-z-start down the non fiting inlets and try it, simple way to see if there's no fuel but will run.

[Laverdaroo]

If you shine a light down the inlet tracts on the bob firing front cylinders you can see fuel in the valves, haven’t tried to squirt any ‘hurry up’ down the inlets yer but have a good spark at the plugs. I’ll go have a go and report back……


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[Matt_Harrington]

Strange it keeps jumping teeth. Has the VFRDiscussion group have any suggestions?
You say 'good on the front' and that the rear 'exhaust cam moves' - how come the front 2 cyls don't fire? (unless I'm mis-reading you!)

I wish I could be more help....

[Laverdaroo]

I have no idea which is the conundrum front pipes stone cold but the rear two are firing just at an awful rate and round. Going back out until the breach in half an hour with fresh eyes.


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[Laverdaroo]

Evwening all,
firstly apologies for the lack of info, I've had my hands full a bit, dashing about doing this hat and the other. 

Secondly, Rose is officially fixed......whoopwhoop

I had a right head scratchover a good packet of chocolate Rich Tea's, knowing that it was deffo a timing thing but couldn't understand at what point I could start at to get a satisfactory set up. The facgt that i hadn't touched the front two pots meant that it was here  to look and use as a datum. With that in mind I set up what was supposed to be TDC on number one, which is as you'd expect, located just under your left buttocl cheek   Straight away I could see that the marks were 180 out on the rear sprockets and although marked at the front, not the marks I'd been using initially. To check it I couldnt find any corresponding marks on the front set of cam sprockets so decided, just for a sense check , call 'Captain Happy' himself and gave Ken a call. His cam position knowledge far exceeds mine so it was a good shout and worth the endless dad jokes, tactless Mancunian attempts at humour and not being able to get a word in as a theory was created.
Anyway, after two coffees, a couple of rollie's and a manual download later, a small diagram/picture was seen by Ken which showed where the front bank should be on the sprockets at any any given time. Splendid! I'd simply overlooked the page with it on and it was in a silly place in the process meaning its easy to miss,  never the less I whipped the rear cams off again, tipped her round 180 and refitted to Cyl 3 on comp @TDC. span her over from the crank and all was good. So on with all the air box again and associated spaghetti, tank on Fuel hooked and she fired straight away but on 3 pots still with the front pot number 4 at the right stone cold. Under closer inspection it appears I had a chaffed wire which kept failing so the soldering kit was out and she's now back on 4.

Tick over was mental at about 3k so off came the tank, associated spaghetti, airbox and connectors and under close inspection to the hose routing, an issue was seen just keeping the injector bar from closing completely due to the hose just routed a little differently. A bit of a fiddle later and its back to burbling but still needs a few tweaks to get he tickover set again, its been knocked during all the carrying on with the motor out etc so a few niggles were expected.  I had her out on a few test rides to iron out issues but they were all simple fixes thankfully Needless to say shes back to her rude health and currently dripping wet outside after a mostly wet, yet enjoyable bimble around the Mendips this afternoon

[Laverdaroo]

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[Laverdaroo]

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[Laverdaroo]

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