- Location
- Rowley, MA
I have a 94 Blaster B1 that I have rebuilt and have been having problems tuning it for bottom end performance. It runs very good on the top end and idles very well. It bogs then cleans up as it gets to full throttle when I punch from low speed or when I am at high speed then slow down for a corner and punch it. I have played around tuning the carb and tuning the pipe jets, but havent figured it out. My blaster is setup with the following:
-stock 701 61x case
-ADA head 35cc domes
-carbon tech reeds
-lightened flywheel
-single blackjack 44 carb
-SJ spark arrestor
-Factory B limited pipe
-jetworks flow control valve
-Solas mag pump
-Hooker 10/16 prop
-bored out stock nozzle (i think about 1mm bored out)
-Worx 201 intake grate
-jet dynamics ride plate
First I thought the pump was getting too loaded up so I got the nozzle bored out, I think it was bored out about 1mm, but it still has the bog. Now I am thinking I just dont have it tuned right. Between tuning the carb, tuning the factory B pipe jet screws and adjusting the flow control valve, I think something is off or a combination of things is off. I have read many things about tuning carbs and tuning the exhaust, but I feel like I just cant get it perfect, unless it is something else. Should I tune the carb first then the pipe, or vice-versa? Should I try a different setting on the pipe jets? And what is most likely causing this bogging? Any help or direction would be a help.
-stock 701 61x case
-ADA head 35cc domes
-carbon tech reeds
-lightened flywheel
-single blackjack 44 carb
-SJ spark arrestor
-Factory B limited pipe
-jetworks flow control valve
-Solas mag pump
-Hooker 10/16 prop
-bored out stock nozzle (i think about 1mm bored out)
-Worx 201 intake grate
-jet dynamics ride plate
First I thought the pump was getting too loaded up so I got the nozzle bored out, I think it was bored out about 1mm, but it still has the bog. Now I am thinking I just dont have it tuned right. Between tuning the carb, tuning the factory B pipe jet screws and adjusting the flow control valve, I think something is off or a combination of things is off. I have read many things about tuning carbs and tuning the exhaust, but I feel like I just cant get it perfect, unless it is something else. Should I tune the carb first then the pipe, or vice-versa? Should I try a different setting on the pipe jets? And what is most likely causing this bogging? Any help or direction would be a help.