Break in

[MrBig]

My first rc was a 10th scale traxxas rustler I bought from a friend for $20.00. After stripped gears and shattered yokes i bought a new one. Upgraded motor to Velineon 3500 brushless and last week I bought a 5th scale exceed rc Hanibal monster truck. It's a 2 stroke 30cc gaser. The break in instructions say to keep it under 5000 RPM for the 1st 8 hours and there is no mention of temperature. I live in Wisconsin and the temp here is around freezing. Can I still rip it up and break it in and not ruin the engine? Thanks.

 

[CosmosGoat]

I broke in my Baja in winter. I added a little more fuel to compensate for the cold temps and fired her up. Took it easy on the first tank stopping after about half tank and letting the motor cool. I did let the RPM get pretty high but i made sure not to hold WOT. I would roll in and out of it. On the second tank i let it fly. It has been running strong since.

To comment on the directions i dont see how its possible to keep it under 5k. Unless that thing has a 4000 RPM clutch the truck would never move.

 

[MrBig]

winter break in

How cold would you say it was? What ratio of fuel to oil did you use? What ratio does hpi recomend?

 

[CosmosGoat]

It was below freezing. I run 25:1 in my baja.

 

[MrBig]

thanks

I think I will wait a while tho...we just got a wind chill advisory of -20 to -30 here in central wisconsin for 2/8/11.:whhooo: