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Post by fladg on Oct 8, 2017 19:09:26 GMT -5
Anyone familiar with the bolt missing for the znen 150cc scooter?  |
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Post by toddmaples on Oct 9, 2017 7:26:38 GMT -5
Anyone familiar with the bolt missing for the znen 150cc scooter? Goes through the exhaust bracket and into the case? Should be a standard ISO M6 thread I believe. |
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New Rider
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Post by fladg on Oct 9, 2017 9:26:30 GMT -5
Anyone familiar with the bolt missing for the znen 150cc scooter? Goes through the exhaust bracket and into the case? Should be a standard ISO M6 thread I believe. Great thank you!! |
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Post by lostforawhile on Oct 12, 2017 1:09:06 GMT -5
yep, M6 you ought to see the restricted crap in one of those mufflers, its amazing they even run
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Post by chewbaca on Oct 12, 2017 10:42:58 GMT -5
Make sure you get a high grade bolt
That particular part is not well engineered
It needs a bolt that can handle shear and flex at the same time
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Post by fladg on Nov 20, 2017 14:36:40 GMT -5
So I ran into a bit of a snag. Trying to replace the bolt I noticed that it's broken off inside - hence why I lost it.
Attempt to drill it out? Any other way of getting around this (replacement exhaust)? Local shop told me to just go a welder and have it mounted permanently due to the design you guys mentioned...
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Post by chewbaca on Nov 20, 2017 18:48:25 GMT -5
yes try to drill it out, if you mess up the thread you can tap it a size bigger
or make it a through bolt
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Post by toddmaples on Nov 23, 2017 3:09:32 GMT -5
So I ran into a bit of a snag. Trying to replace the bolt I noticed that it's broken off inside - hence why I lost it. Attempt to drill it out? Any other way of getting around this (replacement exhaust)? Local shop told me to just go a welder and have it mounted permanently due to the design you guys mentioned... Look for my head repair thread. Has pictures on putting steel inserts in the heads. Imho if you gotta pull the head may as well improve it. For an hour or so of work you get the peace of mind steel-on-steel threadng provides. |
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Post by cyborg55 on Nov 23, 2017 10:26:08 GMT -5
Drill a hole in the broken bolt shaft,,,probably wouldn't hurt to soak the shaft are with penatrating oil side and out over nite ,,,the use an easy out to extract the shaft,,,4-5 piece kits are sold at any auto parts store,,,very inexpensive,,,buy a grade 8 minimum replacement bolt,,,don't cheap out here,,,get a quality bolt,,,it'll save you $ in the long run
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Post by dyoung1167 on Dec 11, 2017 22:46:21 GMT -5
don't weld it, that happens to need to come off when putting fresh rubber on. worst comes to worst if trying to drill it out and you mess up the threads yadayadayada, through bolt it with a self locking nut and a bolt just long enough to make use of said nut.
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