Hello, I bought a used 1998 RG150 on a whim today, it has WOF and rego and was cheap. I thought it would be fun to relive my youth with a two stroke bike :-) The previous owner told me it had a catastrophic engine failure (he gave me the crankcases and cylinder) and oh boy it had really let go in a big way. He paid to have new crankcases, main bearings, crankshaft with new conrod, new cylinder and piston professionally (?) installed. I think all the work was done reasonably well, sounds good, no rattles, good compression etc.
Here's the thing, it starts, runs and idles real nice, but won't make any power in the upper rev range, just splutters and misses from about 6-7K. If I give it WOT in neutral it will go to about 10-11K but sounds like it's missing. I've cleaned out the carb this afternoon, was clean as, made no difference. I'm picking it's a dreaded power valve issue. I've tested the exhaust power valve and it opens and closes ok with the motor controller, but I'm not sure the CDI/ECU is doing it's bit when it's supposed to tell it to open? I've got a service manual, the cables are set ok, but my manual has a couple of pages missing which I presume detail setting the valve cable pulley position on the shaft.
Many moons ago me and my mates had YPVS Yamahas and they cycled the power valves when the ignition was turned on, made a zzz noise. This bike doesn't do that. I'd really like to get in touch with someone who knows this model well to get some advice and pointers about where to look next.
Thanks KiwiBiker community.
Andrew
Here's the thing, it starts, runs and idles real nice, but won't make any power in the upper rev range, just splutters and misses from about 6-7K. If I give it WOT in neutral it will go to about 10-11K but sounds like it's missing. I've cleaned out the carb this afternoon, was clean as, made no difference. I'm picking it's a dreaded power valve issue. I've tested the exhaust power valve and it opens and closes ok with the motor controller, but I'm not sure the CDI/ECU is doing it's bit when it's supposed to tell it to open? I've got a service manual, the cables are set ok, but my manual has a couple of pages missing which I presume detail setting the valve cable pulley position on the shaft.
Many moons ago me and my mates had YPVS Yamahas and they cycled the power valves when the ignition was turned on, made a zzz noise. This bike doesn't do that. I'd really like to get in touch with someone who knows this model well to get some advice and pointers about where to look next.
Thanks KiwiBiker community.
Andrew
Help with Suzuki RG150
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