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Originally Posted by deadmancourt
(Post 7766764)
thank you!....i put it all back together and sat it out in the sun for 30mins cause i dont own a heat gun and it runs great!....i didnt really even drive it but just fired it made sure it idles and blipped it acouple times and all is good....sounds great!....about the shims,right before i put it back together i tried what you said and found 1 thick shim,the same color as the button head,but no other shims!...should there be any more shims! i only run 20%...i have a few old shims some thin,some thick,but none as thick as the 1 thats on this motor!
this should help : http://www.massivemods.com.au/produc...roducts_id=192 |
so both 1thick and 1thin copper?...so there will be a total of 3 shims including the real thick aluminum colored 1?....how thick are each of these shims?...would i be going to .7mm or .4?
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.7 as .3 is built into the head button, when it's run in remove the .2 shime & u should be in the ballpark depending on the quality of the fuel u use. JMO others might differ but read the text on shiming from the link & keep an eye on your pipe temps
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runs great!
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yep, don't matter what order
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Originally Posted by MAGPIE-121
(Post 7766865)
.7 as .3 is built into the head button, when it's run in remove the .2 shime & u should be in the ballpark depending on the quality of the fuel u use. JMO others might differ but read the text on shiming from the link & keep an eye on your pipe temps
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thanks for your help! everything is gravy!
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Now i got another problem. The screw that tightens the carb neck broke inside the carb neck :/ This engine is just a hassle, maybe i'll just chuck it and keep it for parts.
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Originally Posted by jwm2
(Post 7766963)
Now i got another problem. The screw that tightens the carb neck broke inside the carb neck :/ This engine is just a hassle, maybe i'll just chuck it and keep it for parts.
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Originally Posted by inferno13
(Post 7766955)
hi, i saw you said keep a eye on pipe temps??? what should pipe temp be? what causes pipe to get hot or derasticly change temp?
quote from MM " The more shims you run the lower the comp ratio, less tank time, and the cooler your head will run but this will give you hotter exhaust temps so if you are melting bodies thats why !" IMO the fuel is being burnt outside the exhaust port i think because of the lack of compression ! |
what size carb venturi do you guys run in truggy?...
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Originally Posted by deadmancourt
(Post 7767025)
what size carb venturi do you guys run in truggy?...
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Originally Posted by jwm2
(Post 7766963)
Now i got another problem. The screw that tightens the carb neck broke inside the carb neck :/ This engine is just a hassle, maybe i'll just chuck it and keep it for parts.
then with a very small screwdriver put it through the hole & tap out the other side of the pinch bolt & repeat for the other side the pinch bolt is cheap so don't give up just yet ! |
Originally Posted by MAGPIE-121
(Post 7767102)
try this : heat up the carby neck around the bolt head & u should be able to pull the bolt head out.
then with a very small screwdriver put it through the hole & tap out the other side of the pinch bolt & repeat for the other side the pinch bolt is cheap so don't give up just yet ! |
what pipe do you guys recomend for the gx-5r?....i have a jp-4,is this a good pipe for these motors?
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