c1 engine the carb jets help

2851 Views 29 Replies 5 Participants Last post by CAM2, Sep 24, 2012

mikeldoroba

Discussion Starter · Sep 16, 2012

3

hello so i looked at the carb on the c1 and the main get in its a 15mm carb rep and the jet is a 0.75 carb so i dont know if thats good and allso in my rep 19mm that came off my polini gp3 rep carb the idle jet is 0.5 and the small jet is 0.6 and the main jet is 0.95 thats the rep carb i kinda thort of puting it on my c1 engine but need a new manafold but cant get it all to work so idears plz about the carb and all the jets i have wethere there okay or not and if thats okay on my c1 engine and also tell me what you guys run your c1 type engines on and what there like and also i do wont to use the 19mm carb just becsause its nice and also i have a good air fillter so ill wait for the reply

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davation

· #2 · Sep 16, 2012

Man, i think i have that same bike as well.

mikeldoroba

Discussion Starter · #3 · Sep 16, 2012

no way well fancey sending it to me hahaha i need a make some hose up for the radiator i might make some copper tubeing up and then use hose to cupal it all up tomoz it will be done then wensday the first run lol hope i can make the pipes up

EPR

· #4 · Sep 17, 2012 (Edited)

Try to find some small auto heater hose, or shim the fitting to fit bigger hose.

davation

· #5 · Sep 17, 2012

lol, i think the shipping would cost more. EPR has the right idea. Also you could use automotive fuel line.

EPR

· #6 · Sep 17, 2012

Look for small car heater hose. Or black rubber gas hose would work too, good call Davation.

EPR

· #7 · Sep 17, 2012

hkmotos, I just checked out, they have the 19mm C1 Carb kit for $48, and they have a SS C1 killer exhaust for $119, I want it, next on my list,lol. They have alot of new stuff, got to check it out.

davation

· #8 · Sep 17, 2012

I have delt with HKmotos before. I bought some triple stage cf reeds for my cag. They had great deal at $10 a set so i bought 3. My C1 is a beast to ride. I raced it a couple times and couldn't keep the front wheel on the ground. I love the power but the thing is so small i had to fight it doing wheelies the whole race. It ended up doing a wheelie which led to it doing a back flip right out form under me.

mikeldoroba

Discussion Starter · #9 · Sep 17, 2012

haha thats is what mine is like i really find it hard to race and all the time thinking to lean my head over the frunt weel haha to much pawer what am i saying haha need more pawer allways hahaha

davation

· #10 · Sep 17, 2012

LOL, thats exactly how i had to ride mine, lean all my weight over the front wheel. if the bike had a bigger frame it probably wouldn't be much of an issue. I have been thinking of using the motor on a mini go cart or something. That tiny frame and powerful motor is a bad combination.

mikeldoroba

Discussion Starter · #11 · Sep 17, 2012

yeah true true i wos thinking of sticking a gp3 reverse in a quad or a trike

mikeldoroba

Discussion Starter · #12 · Sep 19, 2012

so EPR looking at my first post what do you think of my jeting on my b1 engine ?

EPR

· #13 · Sep 19, 2012 (Edited)

2

I don't know much about jetting, I got help from StrayDawg63. I have a 14/14 rep Dell I modded for my 40cc Polini rep engine. Took the brass tube out of the bore, drilled it to 15mm in back and taperbored it to 16mm in the front put the next size jet up. Then I drilled the two little holes that face back in the brass tube, .005" bigger than stock, and they are 2 different size. Not much more you can do.
That is a 19mm Banshee manifold with the alum tube I ripped out of my stock C1, so it would fit the 14 Dell, clamp it in with a ss hose clamp. To run a 19mm, which I might do later, have 2 more of them here, you take the C1 piece out and slide the 19mm in.

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mikeldoroba

Discussion Starter · #14 · Sep 19, 2012

so dus it just slid out? and so can you send me all the tecno about what you did as i have a 19mm carb rep one i wont to get something that works right and makes it faster haaha

EPR

· #15 · Sep 19, 2012

The clamp on the intake holds the 14/14 alum piece in and the carb clamps to it. If your carefull you can bore from the backside and taper the front side without hitting the brass tube in the center. The metal is real thin so you cannot go any bigger.

mikeldoroba

Discussion Starter · #16 · Sep 19, 2012

oh right so do you have anypics of this and ill do that tomorrow i think

EPR

· #17 · Sep 19, 2012 (Edited)

No photos I just when out and did it. The C1 piece fits right into the Banshee 19mm manifold, and a small hose clamp, then bolt the carb to the same place it goes on the B1 or C1. The front I used my dremel rotory file and sand paper. Tsun has 19mm manifolds for B1,C1s for $20 I think. For $48 to your door, hkmotos will send you the whole kit, carb, manifold, air filter and all even a new throttle cable that fits. I just ordered a B1 C1 SS racing exhaust for $119, and got a one ring 40mm Z1 ZPF piston going to put it in an Cag ADA 40mm 2 pcs head/cyld kit I got last year, might make it an Ethanol Fuel engine.

mikeldoroba

Discussion Starter · #18 · Sep 19, 2012

cool ill call them tomorrow and also what about sticking nitrus or fuel adertiff?

EPR

· #19 · Sep 19, 2012

2

Here is the pipe and the ADA kit.

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Badazztoyz

· #20 · Sep 19, 2012

When I had the shop I tried just about everything with these motors. Youre not going to do any good with nitrous trust me. Wish I could find the pic I posted back in 04 of the bike we had with nitrous I know I posted it on here once. If you want a 19mm carb to fit on C1 you freeze the manifold then boil it and the metal part just pulls right out. Im kinda rusty on alot of this as its been a long time. Just pulled out my banshee and thinking of selling it.

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