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Brent Mason

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About Brent Mason

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  1. I have worked about 4 weeks on my Griz600 and have burnt 2 CDIs up ! I added a wire harness and stator and It starts but runs erratically like spark timing is off ! So I would like to try another CDI but I don’t want to Pay an arm n leg ! Anybody have one ? Thanks
  2. I have been trying to get my Griz600 running right for 3 weeks ! Grandsons used it and it quit running , no spark ! New stator etc and started but ran terrible ! Found a burnt capacitor on cdi . Installed used cdi and burnt it also but ran same as other cdi . Came to conclusion wire harness had short so stripped it and found some bad spots fixed and another cdi ran terrible again ! Bought another harness and same rough running ! Checked spark timing with light (put tdc mark on case and on pull start hub) and when it starts timing right on but will jump 25+° retard ! When timing is on tdc marks
  3. I wonder what the specs are on that capacitor ?
  4. I’ve heard that the regulator wasn’t in the cdi circuit on the Grizzly 600 ? Be nice to know what the 12 pins do on this cdi ? Not sure what to check for grounding . I know how to check trigger and charge coils .
  5. Well all back together and started ok but ran like crap still ! Took cdi off and it fried it just like the other one I had on it ! Is there anything that could be frying the CDIs ! In pics you can see where a capacitor bubbled and melted whatever the stuff is ! The other pic is the 1st cdi and it bubbled same as the latest one ! I spent hrs digging the stuff out to see what size the capacitor was but wrap on cap melted when using acetone ! I think I’m going to try the Chinese 6 wire cdi ! These Grizzly600 CDIs are very expensive !
  6. I seen that video and am considering doing that if after done doing rings , new timing chain it runs the same way ! Waiting for parts but the engine is in very good shape , no cyl ridge , checked valves and good , timing chain loose so we’ll see . Was a little worried that the chinese deal wouldn’t do the spark timing advance as I think stock CDIs do .
  7. I don’t think there is a reverse limiter and I’m not sure there is a rev limiter at all on this old griz! As expensive as this particular cdi is used ones are hard to find . I am kind of amazed someone hasn’t tried an alternate cdi from a different model ? Timing advance may be the only hold back ! Most all the other CDIs I’ve studied have the basic stator/pulse/power wiring scheme . Surly somebody on here has tried a different cdi ??
  8. Well took carb off and everything looked great on it ! Put back on and started but same misfiring . It did a big backfire and quit and wouldn’t start ! Put a sparkplug on plug wire and has good spark when cranked over so it could have jumped timing . Going to tear it down and check cam timing and everything . Things like this become a challenge to fix and I always seem to get them !! I’ll post later .
  9. IMG_4272.MOV Originally had my griz600 stop running and then wouldn’t start ! After testing all coils , valve lash , compression (115psi) and all tested ok I bought a used cdi . After cdi install it still wouldn’t start (no spark) ! So even though the stator , pulse/trigger and charge coils check within good range I decided to switch the stator etc ! It started but It is very unresponsive on throttle and acts like it is running in 2 Different spark timing ! With slight throttle it will take off good but instantly go into a very different running mode with no power like timing very retarded
  10. 1998 Grizzly600 ! Slowly died then wouldn’t start ! All coils check good ohms ! Checked ac voltage from source coil get OL ! Is the source coil bad ?

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