Hey everyone. Alright so I recently just went through and modded my Hobbit. So far I have installed a polini 70cc kit, new 4mm carbon reeds, #88 jet, new tjt six roller variator, and a proma exhaust. It starts and runs great.
However i have been running into a couple problems, I have got it up to 46mph and possibly faster if I had a long enough straight away. The main problem im having is overheating when running wide open for extended periods of time. I would like to be able to take it out on roads with 45mph speed limits but cant run for more than about 15 to 20 min without overheating and possibly seizing. I dont know the actual temps because I dont have a temperature gauge but the bike seems to power surge up and down after about 15 to 20 min at full speed which feels almost like a soft seize unless I throttle off to about half speed. After I power off and let cool for a while it starts right back up and runs great at full speed. Also, I properly broke in the kit and put about 100 miles on it before attempting to sustain full speed for long periods if that helps.
I have seen some people install water cooled radiators on their hobbits, but it looks like a fairly involved process. I installed the "standard" polini 70cc kit from treats and from what i have seen you also need a special "head unit" than can connect to the radiator? As well as a pump which connects to the flywheel to run it?? I am wondering if anyone has done this and roughly how difficult/expensive it would be to install.
I have also read that people have drastically dropped their temps by installing the CDI internal ignition system from treats which runs like $290. Which at the moment is a little out of my price range. But I guess If this is my best/cheapest option to get any noticeable temperature drops I will have to suck it up and just buy it. And again I'm not to sure how difficult these are to install. I am pretty much a Bolt on and go kind of guy lol.
I was also curious if installing a bigger intake, either "weekends, DIO, or MLM," could drop my temps by allowing the engine to breath easier? The reason I'm considering this is because it seems like it might be my cheapest option, or is this to good to be true? I am currently running a stock PA-50II intake, carb, and air filter. Some of the last things I have yet to upgrade.
I guess my main question to you guys is what options do i have to drop my temps, and roughly how expensive/difficult are they?
Thanks for any help or other tips you guys can give me. Remember... Think cheap.. lol
I can also post pictures if that would help, probably wont help tho.