JpRedline Posted January 14, 2012 Report Share Posted January 14, 2012 Is your shee runs fine now? Are those TB05EMA plug caps "stock" ones or specialy for a 421? I have a 421 from HJR on its way and im just collecting info for future hehe. Good luck! Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted January 16, 2012 Report Share Posted January 16, 2012 Bought a NGK plug cap p/n LBO5E. someone who has changes theirs, what ones did you buy? I brought these exact plug caps for my shee & they work perfect. Quote Link to comment Share on other sites More sharing options...
guns4children Posted January 16, 2012 Report Share Posted January 16, 2012 I had the same problem with my serval. All o did was take the caps off and trim a little of the plug wire. Ran like a champ after. Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted January 16, 2012 Report Share Posted January 16, 2012 I had the same problem with my serval. All o did was take the caps off and trim a little of the plug wire. Ran like a champ after. Oh yea...I did cut the tip of the wire off also before installing the new caps. That helps with a fresh contact. Quote Link to comment Share on other sites More sharing options...
252wheelieking Posted April 21, 2012 Report Share Posted April 21, 2012 Did you ever get your cub running good? Quote Link to comment Share on other sites More sharing options...
shakar Posted April 22, 2012 Report Share Posted April 22, 2012 whats the verdict??? caps????? let us know Quote Link to comment Share on other sites More sharing options...
maskmanLS6 Posted April 24, 2012 Report Share Posted April 24, 2012 I just had a similar problem and it turned out to be my flywheel. I couldnt understand how it worked for a few minutes and then stopped working. I didnt think there was anything that could change in a flywheel but evidently i was wrong. I changed the flywheel and the problem went away. Electrical problems are the hardest to diagnose unless you know the basics about the system and how it works. Also knowing the details such as ohms and current requirements really help. Quote Link to comment Share on other sites More sharing options...
wfobasheeboy Posted April 24, 2012 Report Share Posted April 24, 2012 Well is there a update to the cub is it running or is it running like Quote Link to comment Share on other sites More sharing options...
mopar1rules Posted April 26, 2012 Report Share Posted April 26, 2012 Why in the world do people not reply, saying if the problem has been taken care of or not?? That just bugs the shit outta me. Quote Link to comment Share on other sites More sharing options...
bansheeryder21 Posted October 11, 2012 Author Report Share Posted October 11, 2012 Sorry guys for not replying! I never got my bike running right. I took a trip to Glamis in April and it did the same thing. I'm able to ride it if I ease into the power band. As soon as I give it WOD it cuts out. Here's what I did tonight. I bought the wires and caps from FAST and changed them out. Still did the same thing. I closed my spark plug gap to .024, changed stator, flywheel, cdi, and set pick up to .015. None of these things fixed the problem. Checked for loose wires and ground and everything checks good. I'm so frustrated with this. Brand new cub build and it can't even enjoy it. So after testing all the above, what's next? Mechanical issue? It starts and revs up fine, but as son as there's a load is when it cuts out. Quote Link to comment Share on other sites More sharing options...
bluebanshee98 Posted October 11, 2012 Report Share Posted October 11, 2012 Sorry guys for not replying! I never got my bike running right. I took a trip to Glamis in April and it did the same thing. I'm able to ride it if I ease into the power band. As soon as I give it WOD it cuts out. Here's what I did tonight. I bought the wires and caps from FAST and changed them out. Still did the same thing. I closed my spark plug gap to .024, changed stator, flywheel, cdi, and set pick up to .015. None of these things fixed the problem. Checked for loose wires and ground and everything checks good. I'm so frustrated with this. Brand new cub build and it can't even enjoy it. So after testing all the above, what's next? Mechanical issue? It starts and revs up fine, but as son as there's a load is when it cuts out. what was your setup before this? did the bike run good before you went 421? have you tried different carbs? i hear 34pjs are sometimes tempermental. not saying this is gonna fix it but your saying even in first gear if you punch it the bike just dies? Quote Link to comment Share on other sites More sharing options...
bansheeryder21 Posted October 11, 2012 Author Report Share Posted October 11, 2012 My set up before this was a dune ported 350 HJR. It ran awesome for years and never had any issues. Quote Link to comment Share on other sites More sharing options...
dave5.0 Posted October 11, 2012 Report Share Posted October 11, 2012 If Kevin is right down the road I'd take it by his place and ask him to look at it. By the time you've banged your head on it for six months he coulda fixed it for ya and you could move on. Just a thought. Quote Link to comment Share on other sites More sharing options...
bansheeryder21 Posted October 11, 2012 Author Report Share Posted October 11, 2012 I've been talking to him this morning. He said to try the jetting. 48 pilot, 160 main, needle middle clip. Quote Link to comment Share on other sites More sharing options...
dave5.0 Posted October 11, 2012 Report Share Posted October 11, 2012 (edited) I'd b interested to see where u end up with this. I've got the same setup on avgas. I'm around a 50 pilot middleish clip and 150-55 main. I'm lean and backing out plugs. My guy thinks I'll end up around 170. I think im still lean on my pilot too. I'm running 39pwks on mine. But I wonder if I would probably b close on jetting with a different size carb. Where is your timing at? Edited October 11, 2012 by dave5.0 Quote Link to comment Share on other sites More sharing options...
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