Dan Marc users - question on models

[Bagger John - #3785]

I'm going to make the stock vacuum-operated petcocks go away and replace them with manual versions...so a Dan Marc valve as a fail-safe is warranted.

Both the bikes are faired, both will have trunks...two-up riding with luggage at freeway speeds will be fairly common. I won't be pulling a trailer with either bike.

Go with the .156 or the .250 setup? MarkT's setup requires a lot of go-juice, hence the higher-flow part. What about the rest of us? FWIW, I'm not going to use an inline filter - nor am I going to get the model with an integral filter.

[Valkorado]

If I could do mine over again,  I'd go for the ones with larger orifice.   I'm pretty certain both mine are the smaller ones.   I've never had a problem but the dragon won't drink more than it needs so why not go for the bigger ones?

[The emperor has no clothes]

I have had the .250 one for some time now. I just couldn't think of a good reason to go with the smaller one.

[svsteve]

I've been running the smaller one with no issues on my std. for a few years. Never seems to be lacking fuel even at triple digits. I did buy the larger one to install for when I rebuild my carbs and have everything apart. Go with the larger one if new install.

[Paladin528]

Go with the .350 unit.
I have the .125 unit and if I run at 85 Mph I will starve the carbs in about 30 minutes.  Faster than that and they starve sooner.

Now I rarely run above 70-75 so its not generally an issue for me so I have left it alone but if you are starting from scratch get the bigger orifice.