dune runner arrival

[Deluge]

That's too lean, dude. 25:1 is about 5 ounces of oil to one gallon of fuel. A Ratio Rite cup makes life easier.

Ratio Rite Oil Measuring Cup

 

[Guest]

Says for 50:1 mix 1 btle with 1 gallon of gas

Then it work for a half a gallon. Is it about a 2.5 oz bottle?

 

[bigboysrctoys]

I did 5.2 oz to a gallon

 

[Guantanamo Joe]

pour that properly mixed fuel into the buggy and go have some fun!!!!

 

[Guest]

Sounds like your good to go

 

[bigboysrctoys]

Got 2 put a tank through it tonite, little sluggish but figure thats from breakin settings, how long before I start tuning? The manual says about 4 hrs of run time before rings r seated.

 

[Guest]

No I just do a tank and then start to tune. Others warm it up and get right into it.

 

[Guantanamo Joe]

From what I have found, the manual is good for knowing parts numbers... I go witht he suggestions of these guys for break in and tuning.

 

[bigboysrctoys]

Good! Didnt wanna wait for 4 hrs. Now low end is really slugish same w mid where should I start? No smoke coming out of it at all. Guess I should just read and search but I don't get a lot of time for that.

 

[Guest]

It will continue to liven up as it brakes in. About the fifth tank or so they start to come alive. A tuned pipe will give a huge performance gain also.

 

[Deluge]

I did 5.2 oz to a gallon

That'll work.

 

[Deluge]

Got 2 put a tank through it tonite, little sluggish but figure thats from breakin settings, how long before I start tuning? The manual says about 4 hrs of run time before rings r seated.

4 hours of run time? Negative. Just do a few warm up laps and give it hell from there. I start tuning within the first tank or two.

 

[Deluge]

Good! Didnt wanna wait for 4 hrs. Now low end is really slugish same w mid where should I start? No smoke coming out of it at all. Guess I should just read and search but I don't get a lot of time for that.

Tune the HSN first, then the LSN. Check the plug color while you tune. To do this, do a high speed run and kill the engine immediately, don't let it idle. Pull the plug out and check the color. Dark and wet is rich, light and dry is lean. You want to hit it right in the middle, which is a brown paper bag color. Also, when you adjust the needles, only turn them a 16th of a turn at a time. A little goes a long way with these engines.

 

[bigboysrctoys]

are these things normally sluggish off the start? it takes a good 15 seconds before it seems to kick in and move good.

 

[Guantanamo Joe]

An aftermarket pipe is what will wake up your low end... My dunerunner was the same way- fast as hell after 50 yards... I put an X-Can on it (not a great exhauset but cheap and a lot better than stock) and that was like putting a whole new engine on there...

 

[bigboysrctoys]

ok thanks, thinking of doing a carb also any thoughts? i don't need a speed demon (yea right) but I don't care for the take off one bit

 

[Guantanamo Joe]

I am actually looking into the walbro 990 right now... I cant speak from any experience as I am running stock on all 3 platforms, but some of these guys swear by them...

 

[bigboysrctoys]

Yea same here I think like 60 bucks?

 

[Guantanamo Joe]

www.gismomotors.com has them for $38.00...

Apparently they are normally out of stock because they are 20 bucks cheaper than everyone else, but they had some in stock yesterday.

 

[Guest]

ok thanks, thinking of doing a carb also any thoughts? i don't need a speed demon (yea right) but I don't care for the take off one bit

An 8k clutch spring will help that take off.