issues

I have a problem with a welded bolt rubbing against the sprocket. The bolt that holds the fork of the brake assembly. Its like its just too long. I was about to shorten it but before I did I wanted to see if anyone else has had this issue. Is there an easier solution that cutting the bolt?

I recently purchased a baja mini bike db30 the guy told me it had sat for 2 yrs so first thing i did was drain and fill the fuel and checked the spark plug, afterwards ot was able to start but then the engine would only run with the choke on, i then removed the carb cleaned it completely and it...

I've been lurking around here a lot in the last few months. I've learned tons while putting together this predator 212 that I am using on a duck hunting boat. What I thought was going to be the last part of the puzzle is driving me insane...the mikuni 22mm knock off. mods on the motor are...

I am a 15 year old new to minibikes, and I just bought a new predator 212cc engine. I took apart the governor and removed the low oil sensor, and plugged up the two holes. I put back all of the parts, as well as made a throttle connector to the carburetor with a coat hanger that seems like it...

I am a 15 year old new to minibikes, and I just bought a new predator 212cc engine. I took apart the governor and removed the low oil sensor, and plugged up the two holes. I put back all of the parts, as well as made a throttle connector to the carburetor with a coat hanger that seems like it...

So I picked up a '71 speedway scorpion a few weeks ago with the original HS40 lighted coil engine and I'm having trouble getting it to run. After some extensive searching I thought I had the problem figured out. When I got the bike the motor wouldn't fire at all and after checking everything...

I have a 69730 predator with the std. compression height flat top from N.R in the motor. I am sure I'm 28thousands in the hole even with my +20 rod and I am running a 10 thousands head gasket. I'm also running the auto lite plug in it. I forget the number on the plug but its like 3910 maybe...

I have a fresh rebuilt Tecumseh HM100 and a new carburetor and I am having trouble getting it to run correct. The engine has a stock carb/linkage/governor. It starts and idles fine however once under load it bogs hard and sometimes dies. Engine has an ARC rod, valves and seats have been ground...

Changed valve springs and cleaned the head but my exhaust valve retainer came off while running, Luckily the valve didnt fall in to the cylinder and cause any damage. Anyone know if the valve retainers are different or if my retainer is just bad? THanks

Hello everyone, kinda new to the forum. I've been reading the posts and can't fix my issue. I have a Predator 212 on a go kart, removed the governer, have a upgraded air filter, bigger jets in the carb, and a header. I removed the oil sensor as well. The problem is the go kart runs great...

So i put the diaphragm carb back on my MTD's HS40 and got it to start with no leaks since I swapped the gasket and diaphragm. But now it'll only really stay running if i give it a lot of throttle. Ive played with the main and idle screws in and out and not much change. Its got a full tank of...

Can a Hodaka 100 engine taken from a Hodaka motorcycle be used on a Bonanza? Is there mounting issues or anything else to deal with? Thanks. Tom

Parting out a mtd trailflight, not sure if its original to bike, it was running a couple years ago and has carb issues, but turns over good comp, 350 obo plus ship

Got these 2 tonight.

I purchased a TC2 torque converter kit for a predator 212 part number 1002p/218353a 1. With the engine sitting on my Alexander Reynolds The mounting plate does not set right.I took the engine off and put it on the workbench installed the plate and the driven wheel (back wheel)of the torque...

I have two identical set up clone engines on my minibikes, light mods (intakes/airfilter/header). Fresh NGK plugs. Both run great. Why does one motor very consistently start with just one pull while the other one takes five pulls? Starts great on the fifth pull, runs strong, no problems or...

Well it is a big day for so many people a time to kick off a hope for better times and validate successes and failures of the past year. Make resolutions for your betterment in all kinds of issues like addictions, shortcomings, relationships , finance issues, Now for me I am now 70 years OLD...

Picked up a few issues of Karting World mags. basically have almost all the issues from '63 and '64 Lots of minibike stuff in them as well as all the cool vintage kart and 2-stroke stuff uploading pics now but here's a couple

Ok we'll I put my new cam in it's a 308 dyno I already clearanced the block for the lobes, here is my problem when I put the cam in and threw the side cover on and tried to turn it over by hand it was like stiff to turn it over, but when I turn it over with out the cam in it's easy can soneone...

Rebuilding a 3hp briggs that came off of a edger. Didn't pay attention during disassembly as I've never had an issue with lining up the dots, but this cam has a indentation and assuming that's the mark. Only issue is one of the rod bolts seems to be hitting the camshaft. Any ideas as what could...