Here's another question I get asked very often so I thought I'd answer it right here on the blog...
Question: What's the best throttle servo for my Rampage?
Answer: The stock HX-15CS is a decent metal gear servo but I like the Hitec HS-645MG myself. Unfortunately, I don't sell them here at RampageShop.com but they are available pretty cheap on Amazon
By the way, if you found this helpful, please use one of the links in this post when you order your servo on Amazon and I'll receive a small commission.
Thanks for your support, I really appreciate it.
So, you've carefully reviewed Step One (Initial Start Procedure) and still can't get your Rampage to fire. The next step to troubleshooting is to check to see if your engine is flooded.
Engine flooding is a common problem with all large scale engines and is easily done. These motors run on air/fuel vapour and any pooled fuel in the cylinder as a result of over pulling, excessive throttle use during start up procedure, choke left on during starting etc, will inevitably result is a flooded motor.
The more the cord is pulled without it firing, the more fuel is being loaded into the lower end and the more likely it is that your engine is flooded.
How to "de-flood" your engine:
Holding the throttle at WOT during pull-starting may also bring the engine back to life, after all surplus fuel has been emptied and allowed to evaporate using steps 2 - 4 above.
Alternative de-flooding method by the engine masters at OBR:
Still no start?
Follow steps 1 - 5 again. This time, turn the H and L needles clockwise to fully close. Then pull start until you hear the engine momentarily start (pop). Then set the needles back to stock settings (1 1/4 out on the low, 1 1/2 out on the high) and pull the starter handle again. Following the choke procedure in the Initial Start Procedure may also help but use it with caution to avoid re-flooding the engine again - Listen carefully for that 'pop', un-choke and pull start again.
A badly flooded engine can be a real pain to start – be persistent with the de-flooding procedure.
Proceed to step 3 - Loose Bolts
Part three in the no-start troubleshooting guide is to check for loose bolts. Before proceeding with part three, be sure to review:
Because these engines are relatively sensitive to air/fuel mixture, a loose screw or bolt that allows air into (or out of) your engine could be the result of a no-start. Check that all bolts are tight including:
Loose bolts can easily result in too much air entering the fuel/air mix resulting in a lean seize so don't forget this simple yet very important step.
Still no start? Proceed to step four: Air Filter
Arjay emailed me a few days ago wondering if he could mount DuneRunner / TT wheels on his Rampage XT.
I've always been a fan of these wheels since I go my first Rampage TT back in 2008 so thought it'd look cool if a slapped a set on my Chimera EP Pro.
As you can see from the pictures, these wheels do fit on the Chimera but the wheel nuts will only thread about half way on so you'll want to use some threadloc to make sure they do not fall off
For the XT and XB, you have to swap out your front and rear axles as well as the hubs to the Chimera units, then you'll be able to install the wheels. Here's a quick parts list:
1 x 07427 Wheel Mount Set (4)
1 x 07409 Rear Axles (2)
1 x 07428 Universal Drive Joint (2)
I'm often asked the difference between the Rampage MT and the Rampage XT. I've been wanting to make a video for some time now but Redcat Racing has beat me to it (and done a better job of it than I would have) so I thought I'd share it with you. Skip ahead to the 3:00 minute mark to start seeing 1/5 scale:
Here's a quick video on how to install a kill switch in your Rampage. This video shows installation into a Chimera SR but the same procedure applies to all the other gas powered Rampages
Oneil Brother's Racing recently posted this video on their YouTube channel and it is one of the best I've seen in a long time.
Check this video out to learn:
When you are ready to upgrade the engine in your Rampage, be sure to support the awesome folks over at OBR
If you are thinking about taking the leap to 1/5 scale gas R/C, the latest in a series of videos by Redcat Racing introduces you to some of the basics of large scale. I'll post more of this series as they become available.
This video also shows just how large a Dune Runner 1/5 scale is when compared to a 1/10 Nitro Volcano trucks.
Horizon Hobby posted this YouTube video on how to start and break-in their Losi 5ive-T but the info on this video also applies to your Redcat Rampage.
Unboxing and Set-up - Losi 5ive-T
Break-In and Preparation - Losi 5ive-T
After Run Maintenance - Losi 5ive-T
Check out these other tuning and trouble shooting videos and blog posts for more tuning tips for your Redcat Rampage: