Oil Mod for 1984 VF750F

I am researching the cam issues that the early interceptor's encoutered. So far my quest for an understanding has steered me in the direction of oil mods. Do you guys have any input?

BTW i found this guy online with tons of info Robyn Landers V4 Files. Any suggestions on what i should do?

 

After endless hours of research and scanning the internet i finally decided to go with the Dave Dodge oil mod kit. Just bought the kit today from dave through paypal. He lives in arizona and it will take about a week to get here. He offers the kit for my bike for $269 and includes free shipping. I will post pics before and after as soon as im able to install the mod. If anyone is interested in getting their hands on the mod here is Dodge's info.

Dodge Racing Products
Tel: (928)387-1206
e-mail: drp123@mindspring.com

BTW he does not have a website and he answers the phone personally

 

Cant wait to see pics, good luck with the mod...

 

Would you post the link you have to get the files, I have looked at the mod to the point of despare and am still thinking if i should or should not and would like to know how far you get and if you go for the mod. Thanks

 

No comment. I'm sure you don't want to hear my opinion on it.

 

I think Grey and I are on the same page.

 

just google Robyn Landers V4 Files and click on the link that say waterloo, he has endless information on v4's. Hope that helps and keep me updated.
i will post picks as soon as i start the process.

 

I have rummaged around in as many gen 1 engines as anyone on this forum and would gladly have to deal with a cam failure over a lower end failure. The oil pump on gen 1 was JUST enough to get the job done and robbing oil from the lower end is risky option. My 2 pennies.

 

+1 on that and use a good oil like Spectro. I've swayed from Spectro twice. The last time about 2yrs ago, used Valvoline MC oil. (couldn't get Spectro at the time). Went back to Spectro and motor is quieter and shifts a lot better. Never use car oil as it doesn't have the longer polymers in it for the trans.(shear quality). Stock cams with 64k on them, there's no problem here.

 

Thanks for the advice I think the rear shock is money better spent, thats what I am goin to do.
Thanks man

 

This is the reason to come to this forum, you guys are straight to the point with sound knowledge and good advice. Thank you all for replying...

 

There is one exception though I forgot about. If you can get an oil filter adapter like used for oil coolers. You could use the outputs to the heads. Then you could double up by keeping the hard line also. Though some testing should be done as to how much oil it is/can pump up top. The restriction should be in the oil passages for cam/rockers can only flow X amount. What that is I don't know. Don't want to pump too much up there.

 

me personally i'd go with a quality synthetic oil with phosporus and zinc additives already installed in the oil such as redline full synthetic motorcycle oil and just replace the clutch springs with heavy duty ones to accomodate for the extra lubricity of the synthetic oil.
the phosporus and zinc is what keeps cams alive and protected from premature failure.
any top car cam company such as comp cams recomend those 2 additives for older non roller cams.
newer motors nowadays in the automotive industry utilize roller cams and they dont need the zinc or phosporus to help with lubricity issues. but older motors that still utilize flat tappet cams wont survive very long without the 2 additives mentioned.
just my 2 cents.....

 

That's why I mentioned Spectro oil. It was originally designed for motorcycles with those considerations in mind. It's really great stuff for old motors and trans.

 

Top end oiling modifications are 100% required for the early VF's. As you have discovered there are a couple of versions out there. I used to sell the main oil gallery type mods, which are the best style. The oil filter plate ones are easier to install. If you go to the V4 Market you can still pruchase them. Either way you choose will be money well spent.

 

Update, took my bike out for a short ride yesterday and the motorcycle gods were against me as my bike just decided to dump all the coolant thru the water pump. I can't blame it on the weather it was an evening ride. Can't blame it on the mod since is not here yet. Any suggestions for the reason of the failure would be appreciated thank you.

Fiy, previous owner rebuilt the heads.

 

Thru the water pump, like from the edges? Did you have it apart? There is a o-ring gasket there that may have blown out. They dry rot and don't seal once you open it. I could not find a gasket so I used blue RTV silicone. Maby not the best, but has not dripped a drop.


So, nobody want's to know if it's ok to use car oil in yer bike?
otstir: