1994 Waveblaster help needed!!!!!

A

aximskater4

Location
Ca
Ive got a 94 wave blaster and it has an aftermarket RIVA exhaust and Mikuni carb and have had problems on it recently. It will usually run fine for a few hours at the beginning of the season but then it starts to act up. It seems to start bogging like when you go full throttle it will only go up to about 7-8mph but if you feather the throttle or kinda bunny hop it so it sucks a little air then all of a sudden it will kick in and accelerate just fine but the second you try to come out of a turn and floor it it does the same thing. We have had the carb cleaned out 2 times cause they said that there is probably water in the carb but has no effect on it. Someone said that maybe we wernt using a high enough octane in it so ive been running nothing but premium but that didnt do anything either. Are the NGK B8HS plugs good enough? We were thinking about trying to put a hotter burning spark plugs in to see if that would help. It just seems like it isnt burning off all the gas its being fed. Any help would be greatly appreciated.
ANY HELP WOULD BE GREATLY APPRECIATED!!!!!!!!!!!!!!
Thanks,
-Chris
 
Last edited:
blaster800

blaster800

Location
sunbury ,ohio
aximskater4 said:
Ive got a 94 wave blaster and it has an aftermarket RIVA exhaust and Mikuni carb and have had problems on it recently. It will usually run fine for a few hours at the beginning of the season but then it starts to act up. It seems to start bogging like when you go full throttle it will only go up to about 7-8mph but if you feather the throttle or kinda bunny hop it so it sucks a little air then all of a sudden it will kick in and accelerate just fine but the second you try to come out of a turn and floor it it does the same thing. We have had the carb cleaned out 2 times cause they said that there is probably water in the carb but has no effect on it. Someone said that maybe we wernt using a high enough octane in it so ive been running nothing but premium but that didnt do anything either. Are the NGK B8HS plugs good enough? We were thinking about trying to put a hotter burning spark plugs in to see if that would help. It just seems like it isnt burning off all the gas its being fed. Any help would be greatly appreciated.
ANY HELP WOULD BE GREATLY APPRECIATED!!!!!!!!!!!!!!
Thanks,
-Chris
Click to expand...
FYI I had a similar issue ,did the same thing in the turns like yours is , Mine turned out to be the fuel pump diaphrams in the carbs , so my unprofessional suggestion would be to start there with a total rebuild kit with new needle and seats , eliminate that and go on ... the turning and bunny hopping makes me think its a fuel avaiability issue ONLY M.O.
 
tom21

tom21

havin fun
Location
clearwater FL
yes, the check valves get creased and don't work, and the needle and seat can dribble fuel. just make sure you count the turn in on your high and low screws so you can reset them and if you make adjustments write it down and the resulting change so you know how to get back to where you are if you make it worse and also to help you see where you need to go.

exhaust leaks you usually can see black exhaust grime coming from the leaky area and may even be able to see some smoke when you rev it with the hood off.
 
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