barahonapr Posted January 8, 2019 Report Posted January 8, 2019 just got a new bike, dont know much about motor but pretty sure it has port work..its boggy on low end, sucks gas like crazy and fouls alot of plugs... setup is port work maybe.. cool head keihein 32s, 50 pilot, 140 main, cpi pipes. please any help in the right direction would be great. thanks Quote
ginger Posted January 8, 2019 Report Posted January 8, 2019 first thing i would check is compression. Then give us your altitude and the temp you plan on riding in. Quote
barahonapr Posted January 8, 2019 Author Report Posted January 8, 2019 Compression is good riding at sea level about 70° Quote
gusto Posted January 8, 2019 Report Posted January 8, 2019 Try movie your needle on the clip and see if it helps the bog. If it gets better fine tune your needles. Quote
barahonapr Posted January 8, 2019 Author Report Posted January 8, 2019 Right now it’s centered should I move up or down? Quote
gusto Posted January 8, 2019 Report Posted January 8, 2019 Raise the clip to the top to bring the needle down. If you see improvement report back Quote
Ayesully810 Posted January 9, 2019 Report Posted January 9, 2019 does it start easy and run worse when warmed up? thats a rich jetting condition. 32 keihins? are they 28s bored? Quote
barahonapr Posted January 9, 2019 Author Report Posted January 9, 2019 2 hours ago, Ayesully810 said: does it start easy and run worse when warmed up? thats a rich jetting condition. 32 keihins? are they 28s bored? Kinda sucks starting..definitely 32s Quote
Ayesully810 Posted January 9, 2019 Report Posted January 9, 2019 keihin doesnt make 32s 28 33 35 if it sucks starting and takes a million kicks but compression and all that stuff is good then you might need a bigger pilot jet Quote
barahonapr Posted January 9, 2019 Author Report Posted January 9, 2019 1 hour ago, Ayesully810 said: keihin doesnt make 32s 28 33 35 if it sucks starting and takes a million kicks but compression and all that stuff is good then you might need a bigger pilot jet Must’ve misread it then and was definitely thinking on going up on pilot for sure. Quote
ginger Posted January 9, 2019 Report Posted January 9, 2019 On 1/8/2019 at 8:29 AM, barahonapr said: Compression is good riding at sea level about 70° compression to tell if you are in the range where you need a higher octane fuel, to prevent detonation. looking for a PSI number, not just good or bad. Quote
barahonapr Posted January 9, 2019 Author Report Posted January 9, 2019 3 hours ago, ginger said: compression to tell if you are in the range where you need a higher octane fuel, to prevent detonation. looking for a PSI number, not just good or bad. alright will go ahead and try and get some numbers today if not tomorrow. thanks man Quote
barahonapr Posted January 9, 2019 Author Report Posted January 9, 2019 5 hours ago, ginger said: compression to tell if you are in the range where you need a higher octane fuel, to prevent detonation. looking for a PSI number, not just good or bad. Compression is 120 on both sides Quote
Ayesully810 Posted January 16, 2019 Report Posted January 16, 2019 On 1/9/2019 at 2:18 PM, barahonapr said: Compression is 120 on both sides cool head with 120 psi seems low sure that number is right? most people will throw smaller domes in with a cool head might wanna verify dome size Quote
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