Wildguzzi.com
General Category => General Discussion => Topic started by: MotoG5 on October 20, 2015, 08:23:29 PM
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Hey Pete and Other Guzzi Mechanics,
I set my now departed flat tappet valve set up at .006" and .008". I was advised to set the new roller set up at .004" and .006" and did so. As there really is no published "factory" settings (At least that I have been able to find.) for rollerized former flat tappers what do you recommend? It would be nice to have some input on this for all who are doing the upgrade.
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I have been running 4 and 6 also and it seems very happy. :cheesy: recently rollered 09 griso
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4&6, especially if you are running one of Mark's maps. Those are the clearances the roller maps were built for.
Pete
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Thanks Gents.
It was Lucian that suggested in another post to go with 4 and 6. I went with that and I will have to say that the bike runs just fine. This last weekend I had a chance to hit a couple of good back roads and found that it pulls right to red line with out missing a beat. If anything has been different at all the gas mileage has dropped some but not enough to concern me. And for what its worth the valve noise seems to be a bit quieter but not hugely so. All in all I am satisfied where things are now. Doesn't hurt to solicit other informed opinions though.
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My bike runs better at 4 and 6 with marks map. It seems to have more mid range torque.
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I set my rollered 8v at 7 and 9, thinking they were supposed to be at 6 and 8. The bike starts, idles, and runs perfectly. MPG is quite subjective to one's throttle management, but with the stock map and keeping it within 8 mph of the speed limit (65 and 55) I'm getting around 48 mpg average.
Anyone notice better mpg when it's cooler? I've been riding in 40 degree temps and mpg seems to be up; air cooled bikes just seem to like cooler weather, in my experience.
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Anyone notice better mpg when it's cooler? I've been riding in 40 degree temps and mpg seems to be up; air cooled bikes just seem to like cooler weather, in my experience.
My experience is quite the opposite. Cooler air is more dense, requiring more fuel.
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Since my bike came with rollers from the factory & as far as I know the recommended specs are 6 & 8, I've been wondering whether I should try 4 & 6. Has Guzzi offered any official info on this? Also wondered if Mark has done a roller Map for the Norge yet.
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Anyone notice better mpg when it's cooler? I've been riding in 40 degree temps and mpg seems to be up; air cooled bikes just seem to like cooler weather, in my experience.
My air cooled bikes are the opposite. Fuel mileage sucks in the winter.
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FWIW I decided to check the valve gaps after putting 600 miles on the roller install. I found that all of the gaps had opened up about .001" more or less. This was very uniform so I am assuming that its just a matter of some minor wearing in going on. I doubt if I had just let it go until the next scheduled check in 3k miles it would have mattered much. I just wanted to verify that all was looking good and it was. So next check will be in 3k miles unless something starts to sound bad or it starts running poorly.
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FWIW I decided to check the valve gaps after putting 600 miles on the roller install.
Good to know -- I recently did the conversion and figured I would check the valve gaps and check the torque on the cam box bolts and heads after five hundred miles or so. I was curious if owners of bikes that had the conversion found they needed much adjustment after a "run-in" with the new cam and rollers.