CKRC Forums

The same thing will happen if you get the gasket installed upside down. In other words, if the hole in the gasket isn't aligned with the hole in the intake, it will do the same thing - it will start and run but won't rev up. I found this out when I had to remove my carburetor and reeds for inspectio...

Hi Fred, I agree that 16,400 is too high. The guy who rebuilt it was pretty adamant that anything over 16,000 is asking for trouble. I went with a rain setup and the first 5 laps in that race ended up being fairly dry, which is why I was hitting such high RPM. It was a day that saw rain off and on s...

Good evening Calgarians, I hope you are all doing well and everyone is getting excited as the racing season gets near. Over the last few weeks there have been a lot of changes here in Florida and I was very happy when Rok stepped up and added a 3 race series here in Florida. I am still a complete be...

Hi John, I was told that the plastic airbox screens shouldn't be used because they restrict airflow. One person who told me that is a tech that works for ROK USA and he said it would make enough difference to need to change jetting. I haven't seen anyone in any class using them here. I have heard th...

Hi John, I did add a foam air filter a couple of months ago and spray it with oil but the engine builder told me to take it out during races so my new motor that seized never had it but it only had about 2 hours on it. I did pour about 2 oz of oil in the airbox to catch some sand and dust and cleane...

One other unusual thing happened this last weekend that I forgot to mention, the tip of the exhaust pipe that is welded in broke and shot out of the exhaust pipe. It looks like they are welded in pretty well so I am not sure what happened except that it had a lot of laps. I didn't see any cracks but...

Hi Fred, Yes, the basic rebuild service with the guy I went to always includes dyno tuning and break in and is $500. I would really like to get to a point where I could hone and drop in a new piston myself so that I could learn more about the process. Unfortunately, the motor that I had rebuilt last...

I got my motor back from the engine rebuilder and it was really worn out. With all the parts it needed, it came to $1,200, which included piston, connecting rod, piston pin, main bearings, seals, reeds, new style exhaust header, new style timing plate, ring gear and dyno testing. The connecting rod ...

Good morning John, That is really helpful. I will give it a try. I am using the narrow magnesium OTK hubs with two ridges on it (80mm) most of the time except when it rains. I generally use 15 - 10 mm on the front and have two 5mm spacers right now. Based on what you are saying, I will try lowering ...

Hi John, I have a 2014 Kosmic chassis. I just measured and I am at 63 cm on the left and 64 on the right from the front hoop. I read the setup guides for the chassis and the Tillot guide and have the seat as far back as they recommended. I even swapped out for the longer steering column to get as fa...