FNG here…new to the forum

BoxcarWilly
Posts
280
Joined
10/5/2023
Location
Thunder Bay, ON CA
Fantasy
4370th
7/10/2024 6:50am

A 120 kit will make that bike have 7 Horsepower instead of 6.5. 

4
KHNC
Posts
379
Joined
5/24/2023
Location
East Flat Rock, NC US
7/10/2024 7:23am
disbanded wrote:

Have a pizza, maybe take a nap.  Just don't be a moran.

G-man wrote:

And please don't copy/paste photos, articles etc. every few minutes like ILovemoto dork. He's the most annoying poster on here. 🙄

I will add, ignore anything you see from lungbutter. 

Sandusky26
Posts
2846
Joined
7/28/2021
Location
Eastern, NC US
7/10/2024 7:59am

Any of you guys swap the forks on your 100's? My girl rides a 2004 and she bottoms out every time it leaves the ground.

TeamGreen
Posts
30318
Joined
11/25/2008
Location
Thru-out, CA US
7/10/2024 8:09am
TheBusGuy wrote:
Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year...

Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year old daughter races in Midwestxc on a 24’ crf50f. Looking at a top end rebuild, probably a 120 kit. I’m mechanically inclined as I’ve worked on many different pieces of equipment, tractors, buses, light and heavy duty auto. Hell, I’ve never raced bikes before but if he doesn’t want to ride it, I might try to find a mad dog race to try my luck at. I’ve heard these are fun bikes to toy around and practice on anyways. 
 

Anyone from indiana on here? 
 

If this should be posted elsewhere please move it to the proper thread.

 

-TheBusGuy-

Welcome to the club!

So, you got your boy a lighter XR100. Nice! I’d be inclined to check out the crank in that thing since it’s got a few years on it and I’d also check out all the gear box internals…clutch…etc. 

There are all sorts of goodies avail for the XRs.

Good luck! 

The Shop

TeamGreen
Posts
30318
Joined
11/25/2008
Location
Thru-out, CA US
7/10/2024 8:10am
Sandusky26 wrote:

Any of you guys swap the forks on your 100's? My girl rides a 2004 and she bottoms out every time it leaves the ground.

Fork springs and other goodies avail for affordable prices.

BoxcarWilly
Posts
280
Joined
10/5/2023
Location
Thunder Bay, ON CA
Fantasy
4370th
7/10/2024 8:13am
Sandusky26 wrote:

Any of you guys swap the forks on your 100's? My girl rides a 2004 and she bottoms out every time it leaves the ground.

Heavy weight fork oil and a spring spacer will help. It's not worth going any further than that. 

1
TheBusGuy
Posts
11
Joined
7/5/2024
Location
West Lafayette, IN US
Fantasy
3520th
7/10/2024 8:25am
TheBusGuy wrote:
Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year...

Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year old daughter races in Midwestxc on a 24’ crf50f. Looking at a top end rebuild, probably a 120 kit. I’m mechanically inclined as I’ve worked on many different pieces of equipment, tractors, buses, light and heavy duty auto. Hell, I’ve never raced bikes before but if he doesn’t want to ride it, I might try to find a mad dog race to try my luck at. I’ve heard these are fun bikes to toy around and practice on anyways. 
 

Anyone from indiana on here? 
 

If this should be posted elsewhere please move it to the proper thread.

 

-TheBusGuy-

TeamGreen wrote:
Welcome to the club! So, you got your boy a lighter XR100. Nice! I’d be inclined to check out the crank in that thing since it’s...

Welcome to the club!

So, you got your boy a lighter XR100. Nice! I’d be inclined to check out the crank in that thing since it’s got a few years on it and I’d also check out all the gear box internals…clutch…etc. 

There are all sorts of goodies avail for the XRs.

Good luck! 

Yessir it definitely needs some work. I haven’t looked at the clutch but assume it’s toast. I’ve thought about replacing the crank while I’m in there but the money adds up and I’m not sure if it’s worth it. 

1
TeamGreen
Posts
30318
Joined
11/25/2008
Location
Thru-out, CA US
7/10/2024 8:30am
TheBusGuy wrote:
Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year...

Hey all, just dropping in to say hello. I just bought a 98’ xr100r for my son. He also has a 24’ crf125. My 8 year old daughter races in Midwestxc on a 24’ crf50f. Looking at a top end rebuild, probably a 120 kit. I’m mechanically inclined as I’ve worked on many different pieces of equipment, tractors, buses, light and heavy duty auto. Hell, I’ve never raced bikes before but if he doesn’t want to ride it, I might try to find a mad dog race to try my luck at. I’ve heard these are fun bikes to toy around and practice on anyways. 
 

Anyone from indiana on here? 
 

If this should be posted elsewhere please move it to the proper thread.

 

-TheBusGuy-

TeamGreen wrote:
Welcome to the club! So, you got your boy a lighter XR100. Nice! I’d be inclined to check out the crank in that thing since it’s...

Welcome to the club!

So, you got your boy a lighter XR100. Nice! I’d be inclined to check out the crank in that thing since it’s got a few years on it and I’d also check out all the gear box internals…clutch…etc. 

There are all sorts of goodies avail for the XRs.

Good luck! 

TheBusGuy wrote:
Yessir it definitely needs some work. I haven’t looked at the clutch but assume it’s toast. I’ve thought about replacing the crank while I’m in there...

Yessir it definitely needs some work. I haven’t looked at the clutch but assume it’s toast. I’ve thought about replacing the crank while I’m in there but the money adds up and I’m not sure if it’s worth it. 

Do a bit of searching and seek out an XR100 forum…there are some rebuild kits out there that’re affordable. Do your homework and find out who makes the good stuff. 

Have fun with it. Those are great little motorcycles. 

1
plowboy
Posts
12301
Joined
1/3/2010
Location
Norwich, KS US
7/10/2024 12:41pm

Those XR's are made to last.  I've still got my '88 XR600.  Handed it down to my son after racing HS for 10+ years.  Valve adjustments and some suspension work and new plastics.  He managed to kill it riding at the Stillwater 500 every day after work for a couple of years but he can destroy a Sherman tank with a rubber mallet so I don't count that.

I used to ride my little KE125 over to Bury St. Edmunds from Mildenhall RAF and watch John Banks burn laps on the early XR.  Not sure if it's true but I was told he had a hand in development.  He was a 4 stroke badass.

mgifracing
Posts
1603
Joined
1/25/2007
Location
Newton, KS US
Fantasy
135th
7/10/2024 1:57pm
TheBusGuy wrote:
I have to split the case to replace the kick start shaft. While I’m in there, should I put a new crank and all in or...

I have to split the case to replace the kick start shaft. While I’m in there, should I put a new crank and all in or replace the shaft, any worn parts, jug, piston, head etc.? Then hopefully enjoy it for many years as I’ll never get my money back out of it. 

Honestly, I have back to 1993 models of XR 100's and I think I have only done 1 crank in all of those years. I run 10w40 yamalube and haven't had any issues. You can ask Plowboy, mine get no mercy. Cool

2
TheBusGuy
Posts
11
Joined
7/5/2024
Location
West Lafayette, IN US
Fantasy
3520th
7/11/2024 4:28pm Edited Date/Time 7/11/2024 5:16pm

Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up. Quite a bit of metal shaving due to the cam and cam journals. Timing chain and sprocket are ready for replacement. Is there anything I should pay particular attention to here that I may be overlooking? The rod bearing has zero up and down movement using a dial indicator. Don’t mind the table cloth or mess. We use what we’ve got and not what we wished we had. 

1
mxrose3
Posts
2180
Joined
8/17/2006
Location
Delmar, DE US
Fantasy
1398th
7/12/2024 10:58am Edited Date/Time 7/12/2024 11:00am
TheBusGuy wrote:
Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up...

Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up. Quite a bit of metal shaving due to the cam and cam journals. Timing chain and sprocket are ready for replacement. Is there anything I should pay particular attention to here that I may be overlooking? The rod bearing has zero up and down movement using a dial indicator. Don’t mind the table cloth or mess. We use what we’ve got and not what we wished we had. 

That was quick.    I'm no XR100 expert, but I would check the valves and seats to make sure they aren't leaking.    Also, with the cam in place, make sure there isn't any play in the cam to indicate worn journals.    Make sure the clutch basket doesn't have any big grooves where the plates ride (I don't think this bike has enough power to do that anyway, lol)

You can also measure the cylinder bore if you have the right tools.

 

1
TheBusGuy
Posts
11
Joined
7/5/2024
Location
West Lafayette, IN US
Fantasy
3520th
7/12/2024 11:28am
TheBusGuy wrote:
Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up...

Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up. Quite a bit of metal shaving due to the cam and cam journals. Timing chain and sprocket are ready for replacement. Is there anything I should pay particular attention to here that I may be overlooking? The rod bearing has zero up and down movement using a dial indicator. Don’t mind the table cloth or mess. We use what we’ve got and not what we wished we had. 

mxrose3 wrote:
That was quick.    I'm no XR100 expert, but I would check the valves and seats to make sure they aren't leaking.    Also, with the...

That was quick.    I'm no XR100 expert, but I would check the valves and seats to make sure they aren't leaking.    Also, with the cam in place, make sure there isn't any play in the cam to indicate worn journals.    Make sure the clutch basket doesn't have any big grooves where the plates ride (I don't think this bike has enough power to do that anyway, lol)

You can also measure the cylinder bore if you have the right tools.

 

Clutch basket looks good. I’m going to replaced the clutch kit and get a 115cc kitaco house brand cylinder, piston and assembled head. The old head assembly passed a water test. The cam tore up the cam journals. That’ll all be replaced as well as an oil pump, cam and cam chain.

1
mxrose3
Posts
2180
Joined
8/17/2006
Location
Delmar, DE US
Fantasy
1398th
7/12/2024 1:41pm
TheBusGuy wrote:
Clutch basket looks good. I’m going to replaced the clutch kit and get a 115cc kitaco house brand cylinder, piston and assembled head. The old head...

Clutch basket looks good. I’m going to replaced the clutch kit and get a 115cc kitaco house brand cylinder, piston and assembled head. The old head assembly passed a water test. The cam tore up the cam journals. That’ll all be replaced as well as an oil pump, cam and cam chain.

Looks like you got it under control.     Your work will make that bike last a long time under minimal maintenance.

OldTech
Posts
309
Joined
1/13/2024
Location
Decatur , AL US
7/12/2024 3:51pm
TheBusGuy wrote:
Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up...

Well, I finally got around to tearing her all the way down. Doesn’t look too bad. The gears are not all rounded off and chewed up. Quite a bit of metal shaving due to the cam and cam journals. Timing chain and sprocket are ready for replacement. Is there anything I should pay particular attention to here that I may be overlooking? The rod bearing has zero up and down movement using a dial indicator. Don’t mind the table cloth or mess. We use what we’ve got and not what we wished we had. 

mxrose3 wrote:
That was quick.    I'm no XR100 expert, but I would check the valves and seats to make sure they aren't leaking.    Also, with the...

That was quick.    I'm no XR100 expert, but I would check the valves and seats to make sure they aren't leaking.    Also, with the cam in place, make sure there isn't any play in the cam to indicate worn journals.    Make sure the clutch basket doesn't have any big grooves where the plates ride (I don't think this bike has enough power to do that anyway, lol)

You can also measure the cylinder bore if you have the right tools.

 

TheBusGuy wrote:
Clutch basket looks good. I’m going to replaced the clutch kit and get a 115cc kitaco house brand cylinder, piston and assembled head. The old head...

Clutch basket looks good. I’m going to replaced the clutch kit and get a 115cc kitaco house brand cylinder, piston and assembled head. The old head assembly passed a water test. The cam tore up the cam journals. That’ll all be replaced as well as an oil pump, cam and cam chain.

Replace those cam chain guides and check the sprocket on the crank, it will come off with some heat.

1
Mr. Ted
Posts
1627
Joined
5/7/2010
Location
Atoka, TN US
Fantasy
928th
7/12/2024 3:54pm

When you're done making sandwiches,  go buy a bigger bike then STFU! Welcome aboard, sir!

1
TheBusGuy
Posts
11
Joined
7/5/2024
Location
West Lafayette, IN US
Fantasy
3520th
7/12/2024 4:59pm
Mr. Ted wrote:

When you're done making sandwiches,  go buy a bigger bike then STFU! Welcome aboard, sir!

He’s got a crf125 for xc racing, a klx110 and a klx140. This 100 is just a play/practice bike. Want a sammich?

Post a reply to: FNG here…new to the forum

The Latest