kenyounot Posted May 26, 2015 Report Share Posted May 26, 2015 Riding the whole weekend, came home today rode again for 2 hrs. Running good didn't appear to have any problems. Decided to check the spark plugs the left ceramic insulation was completely missing and less than a millimeter of the tip of the strap looked chipped. The top of the straps had no pieces of metal or sign of detonation. The right plug looked tan and a little with carbon build up around the threads. Only strenuous thing I did to it was 2 top speed runs back to back but even after that the thing felt like it was running fine. All the common fixes have been done recently. Leak down is good, jetting is good I think lol. Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted May 27, 2015 Report Share Posted May 27, 2015 Ground strap burned off and porcelain missing is almost always from being lean and then detonation (hammering) causing the porcelain to break. You can be fine on jetting and run a bowl dry if you make a very long run and you run a bowl dry. Dont run any 2 stroke with stock bowls on any carbs for a long long pass. I have seen 90sn blasters , polaris 400s, and banshees all run bowls dry. The single cyls rarely do motor damage but a banshee will for sure. 2 Quote Link to comment Share on other sites More sharing options...
lil Doobie420 Posted May 27, 2015 Report Share Posted May 27, 2015 What ur timing compression and what fuel are u running Quote Link to comment Share on other sites More sharing options...
kenyounot Posted May 28, 2015 Author Report Share Posted May 28, 2015 +4 timing, idk compression but im running 24cc domes at 800ft elevation I should be fine even thoughts it s a 4mm. Im running 93. They are 28pwk's with stock fuel valve. Im leaning towards bowls going dry on my top speed pass. Quote Link to comment Share on other sites More sharing options...
kenyounot Posted May 28, 2015 Author Report Share Posted May 28, 2015 and if anyone is wondering I topped out at 87.3 mph clocked by radar with 15t 41t. lol Quote Link to comment Share on other sites More sharing options...
98_sheester Posted May 28, 2015 Report Share Posted May 28, 2015 What size tires Quote Link to comment Share on other sites More sharing options...
kenyounot Posted May 29, 2015 Author Report Share Posted May 29, 2015 22 and 20's Quote Link to comment Share on other sites More sharing options...
98_sheester Posted May 29, 2015 Report Share Posted May 29, 2015 I got 89 on 20s with 15 41 no port work but that was a vehicle following Quote Link to comment Share on other sites More sharing options...
kenyounot Posted May 29, 2015 Author Report Share Posted May 29, 2015 maybe I topped out due to my floats running dry, I really need to buy a pingel. Quote Link to comment Share on other sites More sharing options...
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