HOW TO: Rotax Pre Season Race Prep - POWER REPUBLIC
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- Опубликовано: 26 июл 2024
- Follow along as Derek preps a Rotax engine for the start of the racing season.
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Please do a series on the KA100, popular growing class in the United States and plenty of people who could use videos like this for KA
alright mate we can do that for you. I'll throw one up for you this week.
Great Video, thanks
Glad you liked it!
Great job bro thanks mate
hell yeah, how do you finish today in your first race back for 2021??
Nice job guys !
Hey Romain, thanks so much, you racing this weekend?
@@PowerRepublic No, not yet. Hopefully next few weeks.
Keep going guys, you’re awesome 👌
@@romaintruchet6815 👊🏻👊🏻👊🏻👊🏻
Green rubber on power valve. I also replace it. Nice job. 👍😉
Hey Nuno. Thanks for writing in. Yeah great idea, also to don’t forget to lube the clutch bearing.
I watched and love all of your videos. They are so useful! I have had this question for a while now. What are you using for carby cleaner and degreaser? I’m using spray stuff from a can. I really do not like it. I would love to use some eco-friendly alternatives, to be honest. Here in Thailand, most mechanics just use benzene for degreasing. Thank you!
Hey Tang, thanks heaps for tuning in from Thailand. for cleaning the carb, use carb cleaner. For cleaning the chain, sprocket and chain guard, use degreaser. For cleaning the rest of the kart, use a strong soap or WD-40. and spray wax or car polish to finish on the chassis paint and chrome. hope that helps
Perfect timing! My Rotax is on the bench for this exact purpose, just pulled it off last night! Great video as always!
One question though; What does the red knob on the power valve actually do on the evo? How many click should it be set?
Thanks Derek!
Hey mate. It’s a fine adjustment for when the PV opens. It’s almost impossible to feel the difference for most drivers so we generally set them flush with the black housing.
Don’t forget to lube the clutch bearing, I totally forgot to shoot that scene and it was even on the video plan. Grrrr
Hey mate, I’m new to karting and have got myself an older Omega chassis (locally SA built) with a Rotax max on it. I’ve been watching your videos and using your tutorials to help me get it sorted out! Thanks heaps, will be buying something from your shop. Just a question but what gearbox oil should you use?
Welcome aboard! thanks heaps for tuning in . we use ATF DEX3. noice and simple, cheap and reliable
Hey Power Republic, what kind of grease are you using for the power valve after you scrubbed it with sandpaper? And what grade of sandpaper do you recommend?
Thanks in advance😊
P.s. Keep up the amazing videos. Just got into karting and I’m learning so much from you!
Hey Hey, thanks heaps for watching. please share the videos as a reciprocal thanks and good vibes!!
I use 2 stroke oil for the blade and the stud. any sand paper about 400 grit would be noice.
Nice... Can you guys do a series on the X30? It would be awesome!
great idea, anything in particular you are wanting to know?
@@PowerRepublic I'd be interested in carb and clutch maintenance (especially the clutch pads), and the full process of taking the carby from the engine and what you pay attention to while doing so, inspecting the reed box, draining the carby if the kart isn't going to race for a couple months to avoid stuck jets, piston head inspection in the X30, and then maybe some videos on general stuff like changing the matting on the exhaust, inspecting the flex (what to look for), would be awesome.
Thank you mate, you are the man!!
Hey, a bit off topic but can you do a video on kart plastics like what the best ones are and what and what not to use etc
well on TK they really only have the genuine set. otherwise I have seen someone use KG plastics on a Tony Kart cause they wanted black plastics
Hey Derek. Do you notice a difference at all between a IW27 and a GR8DI plug?
Not much at all really. I’m a bit of a die hard with the Denso because we used them for so many years.
Hi Derek. Im really new into karting. So maybe a stupid question. How do i know that my Rotax Max is at the optimal 45°C before hitting the track. I don't have a laptimer. Not yet at least.
best way is to take it medium pace on your outlap. unless the ambient temp is below 15 degrees. best way is to save up and get a datalogger. otherwise there are cheap temp display only by RR you can buy that will show the temp
www.mxstore.com.au/p/Trail-Tech-TTO-19mm-Digital-Inline-Water-Temperatu/742-EH1?gclid=Cj0KCQjws4aKBhDPARIsAIWH0JVb3I5l9aIiRfFd43HaL0q3tYym-tz_K6SOdjGKFjJrDmIEUnWV41YaArXSEALw_wcB
www.righettiridolfi.com/en/8108-water-temperature-gauge
Why do you blow air through? Is it ‘must do’ - I don’t have easy access to compressed air.
not essential if you don't have one. you could buy air in a little bottle just for your carbies. or a cheap small compressor.
Also Would have liked to know what type of oil and how much thanks
100cc's and you can use ATF or the Rotax Gearbox oil, either is fine
Now i just need a prd fireball version and the x30 versions... or more likely im going to be visiting karttune@PFI and getting this done properly.
Hey Chris, yeah good idea to get them done before the race season. Is there many PRD engines in the UK?
@@PowerRepublic they are rare here too, its rotax and x30 mostly. I couldnt even find reeds for the prd, and had to use x30 reeds which i trimmed a mil off.
How much is a top and bottom end rebuild?
Hey! I bought a rotax max used kart and I'm trying to rebuild it. But I don't want to break the electrical connectors. How do you unplug the crankshaft angle sensor plug?
Hey Chris, there is a small clip to push in before you pull it off the sensor. if you are still having problems, firstly remove the exhaust system and then remove the 2 10mm head bolts that hold it into the engine. hope that helps
@@PowerRepublic Thanks for the help!
How many times a year would you recommend doing this sort of maintenance Derek, cheers
Sup Bruh, I would do it maybe twice, once before your first race and one at the half way point. then at the end of the season get yo self the top end rebuild. Where do you race your Rotax?
@@PowerRepublic Aussie repping TK and Rotax in NZ bro haha
@@motorsportfan1246 you giving the Kiwis a hard time over there?
@@PowerRepublic doin my best
Gday mate I'm brand new to the sport I have purchased a Senior pre evo Rotax and am struggling to find a manual for this motor I seem to only find Evo stuff I was hoping either yourself or your followers may have a link for me to either download or purchase or is the Evo basically the same bar then electrics which now have the box ?
Yeah the engine is fundamentally the same, bar the electronics and what not. What do you need help with? I have covered most of the basic maintenance of this engine on our channel. if you have anything else you can't find please let me know and I can make it for you
@@PowerRepublic Thanks for the link I did think they were basically the same wasn't 100% sure and yes have been watching your channel and feeds appreciate the help
@@rayhemsley2114 👍
With the spark plug how do you know which type or one to use
I like the Denso IW27's the best. maybe just an old habit
what oil do you need the engine for? the same as gasoline;
nah, you need ATF or light gear oil
Hello from UK!! What is an ideal temperature for rotax max junior?
We did test day and it was only 3 degrees,we got only 31 degrees on the engine so we put some tape ovwr rad,got upto 65..
But what we need to aim for?
Many thanks!
P.S cool videos so informative 👌
Hi, from what I’ve gathered a rotax should always have its water temp between 45 and 60 degrees. Start pushing from 40 degrees and up, slow down and return to the pits if it goes over 65 degrees
lift the flap at 56 ish
if ur not getting up to 50 then put a bit of tape on it,
Thanks for your input guys,we sorted temperature with tape.
Now running around 50-53 degrees.
can you do the same style video but with a kz?
I have some KZ vids up on YT already, have you checked them out already?
what was the gearbox oil you put in?
AFT
what is the sandpaper grade for powervalve?
Hey Blitz, I was using 240 but that is not critical.
Clutch doesn't need serviced?
you clean it with some brake cleaner if you like, and it is steel and doesn't have any traditional friction materials on it, so it doesn't develop much dust
What oil do you use for the gearbox?
Auto Trans Fluid or Rotax XPS gearbox oil
@@PowerRepublic Ok. I guess the one in this video is an ATF, right?
@@mattiasahlstrom1061 yeah boi
@@PowerRepublic Thnx. Keep up the good work with your videos!🤘
Hello I need some advice my rotax evo does not reach more than 13800 rpm or rather at that value it starts to crackle, new battery, new spark plug, max jet carburetor 122 what advice can you give me?
thank you
only at 13800 it crackles? they do have a rev limiter that normally kicks in around 14500 on a straight that is long enough or downhill.
@@PowerRepublic What can I check? Not so much more what to think ..... New spark plug, ok wiring, clean and smooth rave valve. Could it be the pick up?
@@paolobinato3862 yeah you could start with a spacer gasket on the crank pick up. maybe even go leaner to see if it fixes/amplifies the problem, then re adjust
@@PowerRepublic Ok thursday I'm going to the track and then I'll let you know if I've solved something. thank you
Hello first of all thanks for your advice I tried to add the gasket but I no longer had a burst in the spark plug. So I tried to replace the pick up and the engine is completely changed more performing, without strange bursts !!!! Thanks so much!!!
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