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I think that the 22mikuni may have some circuitry issues. It may be a faulty carb. Is the tilly that I was talking about better than the mikuni and do I have to have a fuel pump to run the tilly if the gas tank is above the carb. Also if any of you know where I can get a gx 160 QX2 crank from...

The coil is the stock one on an older gx160. I have tooken off the gov.

Rn I'm waiting to order a new crank cause I broke the end of the shaft while taking off the flywheel. I'm also going to buy a tilly304wx gas:shrug: is it good and do I need a fuel pump to run it. I'm getting a new carb cause if you go read my other post the 22mikuni is what I think is the...

Ok I just snapped off the flywheel bolt on the 160 crank and could not find a cheap one that was a 160 stroke so I guess I'm going to have to spend 70 dollars on a new one.

Would a clone gx200 crank work on my older gx160 with a +.020 billet rod and a flattop piston

Ok I figured that is how you check it but what if there binding. What would I have to do.

How do I check for coil bind an if there is any I don't have the tool or can't find anybody with the tool to cut the spring pockets down.

Ok I'll try

I got it from nrracing and I think my coil may have a rev limiter.

My plug reads rich though

My motor has the following parts on it and only revs to ~4000rpm GX160 Arc rod +.020 Flattop piston stock bore File fit rings CM pushrods 1.3 billet rockers 26lb springs(have duals but can't find someone to cut down the seat) 307 lift cam from nrracing (307lift, ICL 08, LS 07) .045...

The mani is about 2.5-3in long and the pipe is the 2stage one from agk. I have the 45 dual springs but cannot find anyone to cut the seat down .050

Cam is a 308 w/ 1.3 rockers and double checked that the cam is lined up. Do these 22mm mikuni round sides mess up like this.

I never saw it myself but what the guy said is that it would spray out gas of the carb. He did get it to blip to 7500 once but it always stopped at 4000

My plug is what appears to be rich. The tip is black and gunk on it. The valves should not be floating cause they are the 26lb springs. Needle is in center posesition.

I just had my motor dynoed with a 22mm mikuni and it gets up to about 4000rpm then stops. The guy says it is too rich with a 130 main and 12.5 pilot so we went down to 98 main and it does the same thing. Carb bad?? Cleaning?? I don't know what is wrong but I need to get this thing working so...

Thanks a lot. The pics are great, so what do you epoxy with, JB Weld? Also would it be bad to grind the valve guides down smooth to the port itself.

Old style gx160 head(27mm/24mm) Going to port it and mill it prob .065 or more depending on clearance Flat top piston file fit rings Stock bore Arc +.020 con rod NrRacing 307-1006 cam CM pushrods 1.3 billet rockers Dual springs Arc billet aluminum flywheel 6619 (8* advance) On 110octane...

No it is the billet one from nr racing.

The rocker is hitting the stud when the guide plate is in, but when it's out its fine