Update update lol
I know, a lot of posts in row. As an unrelated FYI, I teach English online full time 40+ hours a week. When the students are boring I check out diygokarts while I can still talk to them in the background. To be fair, I'm not teaching technical English grammar....and I still get good ratings....so yeah. Anywho, that's why I've been commenting so much. It's my new way to get through the day. Slow days on diygokarts are ROUGH lol.
But this issue of the weird stutter, that doesn't seem to be engine related, has got me thinking.... maybe the engagement points for the driver and driven pulley aren't in cahoots (technical English term there). Ultimately, I'm guessing one or both aren't functioning properly and for whatever reason not smoothly moving. Need some gopro's to video what's going on behind me when I take off. Or a friend to video it ...lol! Yeah....getting a gopro is much more realistic.
I haven't fully taken them apart, but they seem ok. Times the belt has been on and off the different parts of the driver pulley seems to move really well. I do have a spare driven pulley I can put on it. I suppose that'll be my next step unless anyone has some other ideas.
Everything "seems" good, I can't figure it out. Bolts are tight (though cover of driver still spins -still don't know about that), belt and chain seem to be lined up just right, engine mount bolts are tight, bearings on axle are good, I can see the front tires clearly and they look fine. All things drive train seem good.
---------- Post added at 11:28 PM ---------- Previous post was at 11:12 PM ----------
If you've got a 30 series with the big tires, I assume that is an issue.
Could you recap? Engine? Tire Size? Gear Ratio? TC type?
I probably wouldn't have gone to the trouble of repairing the 30 series, but take off the driveR unit and take it apart. Look inside.
Show us your pics.
Yes yes. A recap would be good. There have been lots of posts with details spread all over the place. Good thinking Bob-O.
I bought this from the original owner off Craigslist.
Vehicle
Kandi Spyder (KD-150GKA-2) made in 2013
Engine
Predator 420cc (Previous owner welded on a standard engine mount plate and installed the engine) He had a 10t on the T/C and a 42t on the axle
T/C
30 series torque converter from GoPowerSports. (Previous owner said they recommended it - he said at the time GoPowerSports did not have a 40 series...so yeah)
Tires
Front: 21x7-10
Rear: 22x11-10 Measures 21 inches top to bottom with a measuring tape
Gear Ratio
Currently 6.6 (9t on T/C and 60t on axle). 8t is still MIA. 8t would be 7.5. No secondary jackshaft (would love a jackshaft)
I agree, fixing the 30 series feels like an insult to this size of buggy. But...94c + 770-790 setup is mucho expensive.
If the spare driven I have is good, at least I'll only have to worry about the driver. Weights and springs I'm guessing (if needed).
Here's the pictures of the driver and driven.
I rotated the driver 180°, that's why it looks like there's a double.
The driven has an original green spring on it. But as you can see, there's not much green left. I have it set on the third hole so it opens easier. I figure that would put less strain on the belt.
The spare driven I have has a red spring.
I'll see about cleaning them tomorrow. Though, I have no dry lubricant. May wait to reinstall them until I get some.
