Im doing that exact mod! Springs are harder and harder to find, i will be going the extra mile and lighten the shoes a bit make holes at the same place on each to try and have something that resembles balance lol
Nice, yeah, I balance my arms. I weigh them in grams, drill out 1 gram of the lightest arm, towards the shoe part of the arm in that thick part, then more weight out of the rest to equal the other. Also remove the wave washers and use medium locktight. Engagement will be higher and you will have more takeoff power because you are higher in the rpm range.
More loose springs give a lower rpm engagement. The thicker HP springs, and have an extra coil, hold the clutch arms until a higher rpm is achieved. Better take off power.
How many horsepower do you think these clutches can handle? I’m not familiar with the pocket bike scene but I have heard of 14 horse pocket bikes and I was wondering how does the clutch handle the power? I’ve heard of people suggest ktm50 engines or clutches (which is also prevalent in mopeds like the puch e50 that uses a similar style clutch). I have a lot of questions lol
Well considering these chinese pocket bike engine pull 1.6-1.8hp stock, I think you are good. 14hp?? Very very few hit that number. Even my water cooled Polini is only 6.2hp. I can make a chinese 44 or 40mm hit 5-6hp so this clutch modified will work all day long.
@@bdrgarage7039 they def have 10 horsepower pocket bike kits, I’ve seen 14 claimed multiple times on pocket bike forums. A ktm50 makes similar power numbers so I’m honestly not too surprised. My biggest concern is longevity for this would be used for daily commuting (food delivery actually)
@@midwestmotorbikes2696 this particular clutch is for the case reed Chinese pocket bike engine. The modified higher horsepower (4-6hp) will hold up but time is less considering these were designed for 1.8hp. (The clutch material) Now anything bigger, KTM 50cc (around 7hp) should have a different clutch. I personally haven't modified one of those clutches. The euro pocket bikes which yes, range 4hp to 14hp use a 2 shoe, have better pad material and different springs. This mod is to have the clutch engage at a higher rpm to help the clutch last longer with a quick throttle on the higher modified case reed chinese pocket bikes.
@@bdrgarage7039 the ktm clutch isn’t too different really, there is a two shoe spring clutch which engages earlier and the 3 shoe that uses Belleville washers and different stack heights to change engagement rpm. Some people go beyond the ktm clutch and use a tomar disk clutch which is like a go kart clutch. I was thinking of using these centrifugal clutches for the motorized bike kits for the stock clutch on those can’t really hold too much above 4 - 5 horses. I’ve read that there are straight shaft and tapered pocket bike clutches and I was wondering where I could get a link for a straight shaft clutch?
@@midwestmotorbikes2696 ah, I see. How much horsepower is your engine? My new spares are tapered shaft also have a key slot. Let me ask an old pocket bike guy. I know these clutches have been used by a guy that ran alky and high compression probably pulling around 10hp. I don't remember exactly.
The HP springs are usually under HP springs and give a thickness. at least 1.5mm. www.amazon.com/Wings-Clutch-Springs-Pocket-Parts/dp/B012MBFX1U/ref=sr_1_2?crid=1SRX8HAKC51RG&keywords=47cc+hp+clutch+springs&qid=1648577935&sprefix=47cc+hp+clutch+springs%2Caps%2C382&sr=8-2
Im doing that exact mod! Springs are harder and harder to find, i will be going the extra mile and lighten the shoes a bit make holes at the same place on each to try and have something that resembles balance lol
Nice, yeah, I balance my arms. I weigh them in grams, drill out 1 gram of the lightest arm, towards the shoe part of the arm in that thick part, then more weight out of the rest to equal the other. Also remove the wave washers and use medium locktight. Engagement will be higher and you will have more takeoff power because you are higher in the rpm range.
@UCgJCrquBroMPNteqZaEuI7w I thought so too until an expert on these engines showed me the light.
The tension washers are what keep the arms true, on these they are cheap , im going to get better ones
i thought smaller/looser springs were needed for more engagement?
More loose springs give a lower rpm engagement. The thicker HP springs, and have an extra coil, hold the clutch arms until a higher rpm is achieved. Better take off power.
@@bdrgarage7039 thanks for clarifying.
How many horsepower do you think these clutches can handle? I’m not familiar with the pocket bike scene but I have heard of 14 horse pocket bikes and I was wondering how does the clutch handle the power? I’ve heard of people suggest ktm50 engines or clutches (which is also prevalent in mopeds like the puch e50 that uses a similar style clutch). I have a lot of questions lol
Well considering these chinese pocket bike engine pull 1.6-1.8hp stock, I think you are good. 14hp?? Very very few hit that number. Even my water cooled Polini is only 6.2hp. I can make a chinese 44 or 40mm hit 5-6hp so this clutch modified will work all day long.
@@bdrgarage7039 they def have 10 horsepower pocket bike kits, I’ve seen 14 claimed multiple times on pocket bike forums. A ktm50 makes similar power numbers so I’m honestly not too surprised. My biggest concern is longevity for this would be used for daily commuting (food delivery actually)
@@midwestmotorbikes2696 this particular clutch is for the case reed Chinese pocket bike engine. The modified higher horsepower (4-6hp) will hold up but time is less considering these were designed for 1.8hp. (The clutch material) Now anything bigger, KTM 50cc (around 7hp) should have a different clutch. I personally haven't modified one of those clutches. The euro pocket bikes which yes, range 4hp to 14hp use a 2 shoe, have better pad material and different springs.
This mod is to have the clutch engage at a higher rpm to help the clutch last longer with a quick throttle on the higher modified case reed chinese pocket bikes.
@@bdrgarage7039 the ktm clutch isn’t too different really, there is a two shoe spring clutch which engages earlier and the 3 shoe that uses Belleville washers and different stack heights to change engagement rpm. Some people go beyond the ktm clutch and use a tomar disk clutch which is like a go kart clutch. I was thinking of using these centrifugal clutches for the motorized bike kits for the stock clutch on those can’t really hold too much above 4 - 5 horses. I’ve read that there are straight shaft and tapered pocket bike clutches and I was wondering where I could get a link for a straight shaft clutch?
@@midwestmotorbikes2696 ah, I see. How much horsepower is your engine? My new spares are tapered shaft also have a key slot. Let me ask an old pocket bike guy. I know these clutches have been used by a guy that ran alky and high compression probably pulling around 10hp. I don't remember exactly.
I get sparks coming out of my clutch now and then. Any idea what’s going on?
Either metal in the clutch material or material maybe fell off. I would pull the bell off for an inspection.
How do I find or look then up?
The HP springs are usually under HP springs and give a thickness. at least 1.5mm.
www.amazon.com/Wings-Clutch-Springs-Pocket-Parts/dp/B012MBFX1U/ref=sr_1_2?crid=1SRX8HAKC51RG&keywords=47cc+hp+clutch+springs&qid=1648577935&sprefix=47cc+hp+clutch+springs%2Caps%2C382&sr=8-2