Originally Posted by Titian2010 (Post 11126201)

Hello hello hello any one here lol jk. Hope someone can help. I'm in a bit of a crunch here and can't pin point the issue. Ok here is the Quick run down. new out of the box Go with Go pipe broke in with idling, figure eights then slow runs half throttle around the track keeping temps at 220 with quick full throttle down the straight. That's my break in method. 1/2 gal felt good, 2/3 gal motor was awesome even ran rich with tons of smoke and now at 1 gal I get flame outs. I know what to look for when flame outs happen. Plugs, leaks, sucked dirt ect... All is well. Things that changed from 2/3 gal from 1 gal are new fresh buggy(mugen us spec), Go pipe got sold during time off to a friend, went back to stock settings and plug brand being changed. Broke it in with 97t. I run os motors so when that 97t died I put a p3 which was in my stock but it didn't last at all and not sure why. Went back to 97t and flame outs are less but still flaming. I used the stock setting from the info given a pages back because I couldn't figure why it was flamming with the p3. I have the 2 needle carb so I did flush and flush and tune from there. Bottom has good power but you can hear the clearing out while throttling with tons of smoke. If I go any leaner on the bottom then it bogs. I spend last practice tuning it myself then asking for help from pros. I feel top is great, bottom has good power but motor has tons of smoke as if I'm breaking it in. And for the flame outs, they just happen. One min it can be upside down and still run, the nxt it only takes a few secs then it's out. Even with fuel. I can go a few laps with no issues then come in to pit and it dies when refueling even with fuel left. From new to 2/3 gallons the motor never never never flammed not even while on my lid for a few secs. Where should I start or what should I do? I loved it new but now I'm too scared to even club race it let alone dare use it for a trophy race.
Thanks

Originally Posted by Titian2010 (Post 11126201)

Hello hello hello any one here lol jk. Hope someone can help. I'm in a bit of a crunch here and can't pin point the issue. Ok here is the Quick run down. new out of the box Go with Go pipe broke in with idling, figure eights then slow runs half throttle around the track keeping temps at 220 with quick full throttle down the straight. That's my break in method. 1/2 gal felt good, 2/3 gal motor was awesome even ran rich with tons of smoke and now at 1 gal I get flame outs. I know what to look for when flame outs happen. Plugs, leaks, sucked dirt ect... All is well. Things that changed from 2/3 gal from 1 gal are new fresh buggy(mugen us spec), Go pipe got sold during time off to a friend, went back to stock settings and plug brand being changed. Broke it in with 97t. I run os motors so when that 97t died I put a p3 which was in my stock but it didn't last at all and not sure why. Went back to 97t and flame outs are less but still flaming. I used the stock setting from the info given a pages back because I couldn't figure why it was flamming with the p3. I have the 2 needle carb so I did flush and flush and tune from there. Bottom as good power but you can hear the clearing out while throttling with tons of smoke. If I go any leaner on the bottom then it bogs. I spend last practice tuning it myself then asking for help from pros. I feel top is great, bottom has good power but motor has tons of smoke as if I'm breaking it in. And for the flame outs, they just happen. One min it can be upside down and still run, the nxt it only takes a few secs then it's out. Even with fuel. I can go a few laps with no issues then come in to pit and it dies when refueling even with fuel left. From new to 2/3 gallons the motor never never never flammed not even while on my lid for a few secs. Where should I start or what should I do? I loved it new but now I'm too scared to even club race it let alone dare use it for a trophy race.
Thanks

Originally Posted by deadmancourt (Post 11127782)

If the low speed is set close to the right spot, the motor should only idle up a tad bit and die before 7 secs. If it dies before , or idles up high..you are too lean... If it takes longer than 7secs and does not idle up, you are tooo rich.... This test can only be done before the crank case gets to normal operating temps....

Originally Posted by Titian2010 (Post 11132758)

Ok so I ran it last night and was back and fourth with the top and bottom. So going off the needle settings above I first tried rob's suggistion. The pinch test gave me a high idle up and took for ever to die. But I left it knowing the bottom was rich and top was lean. Ran a few laps to tune by ear. Down the straight it was on fire. I could hear it at top rpm about mid way down the straight. I knew it was way too lean then and bottom was ok but still had a load up issue. Brought it in and it was 296 ouch. I know that took some long term life out but im glad the rod didn't snap. Came in opened the high speed needle about 1/2 turn to get me in the 200-220 temp area and did a few slow laps to cool it. That half turn was actually really good and I kept it there for the night. The bottom is where I struggled. 1 to 2 turns lean I would get a slight bog as if it wanted to cut off. 1-2 ours rich I had now bottom power. I would have to take wide turns for it to clear just to make baby doubles. So when I put it back to the setting in the pic above the motor ran ok for a practice motor but I would've race it as is. The mid to top was awesome and bottom I could make the smaller doubles but barely. You could hear it clearing out from 5-15 percent throttle and after take off like a bat at out off hell with plenty of smoke. I'm gonna try to get my GO pipe back or maybe post for another. I know pipes play a big role in power band but didn't think it would make or break a motor. But I'll find one and try it again.
Thanks for the feed back and I'll drop in with updates.
This is a long post but wanted to also know how many gallons are these motors getting if ran right and are the newer carbs worth getting? This is my first 2 needle carb. My old Go had another type of carb but I can't recall which. It 1 1/2 years ago. In fact the time I meet rob for him to check the insides. The intech br5 days lol.