Coming Soon
Home > Forum


Author Topic: I finally got a bike!!!  (Read 6134 times)

0 Members and 1 Guest are viewing this topic.

Offline Stusmoke

  • Posts: 0
    • View Profile
I finally got a bike!!!
« Reply #15 on: August 01, 2013, 05:54:26 AM »
55mm x 54.5 mm bore and stroke sounds right. Congrats on the new bike, leave it pinned.  8)
« Last Edit: December 31, 1969, 04:00:00 PM by ' »

Offline eprovenzano

  • Professional
  • *****
  • Posts: 617
    • View Profile
I finally got a bike!!!
« Reply #16 on: August 01, 2013, 01:48:10 PM »
My son had a 99...  strong engine, pretty much bullet proof with basic maint.  As far as the piston goes, no it does not had to burn a hole the the top to be lean.  How does the cylinder walls look, and scarring or scratches?  How about the head? While its down, clean the power valve.  One tip if you disassemble the power valve for cleaning, take pic's and notes as to its settings...  (don't make the same mistake as me and take it apart and forget how it goes back together)

If all is well, get a new piston, ring(s) and top end gasket kit.  While your waiting for parts, takes the time to pull the wheels, re-grease the wheel bearings, swing arm bearings, etc.  Go over the bike looking for loose or missing bolts / nuts.  Be prepared to replace some nuts and bolts with the correct hardware.  Its all part of resurrecting a bike... Now is the perfect time to go over the bike to make sure all is correct, and when ready she will reward you by putting a huge smile on your face.
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
Eric Provenzano
2019 KTM 300 XCW TPI
2000 KTM 300 EXC (Son's)
2001 KTM 380 EXC
Sold 1991 KDX 200... fun play bike
Sold 1999 KX250
Sold 1999 YZ125 (son's)
Sold 2001 Yamaha TTL 125 (son's 1st bike)
Sold but never forgotten 1974 Honda Elsinore CR250M
Sold 1974 Honda Elsinore CR125

Offline JoeyG

  • Novice
  • *
  • Posts: 4
    • View Profile
I finally got a bike!!!
« Reply #17 on: August 01, 2013, 05:10:14 PM »
Thanks again for all the great info. The head looked fine but it certainly was lean. Walls are iffy but it may just be aluminium buildup from the piston. The previous owner did not take care of it as it has missing bolts and broken hardware. I will certainly take pics of the power valve. Any idea where or how the cdi mounts? Also do think I can het away wit& the sst pipe or just scratch it for a stock pipe? I found one from an 01 and I think it should work.
« Last Edit: December 31, 1969, 04:00:00 PM by ' »

Offline mj4trax

  • Junior
  • **
  • Posts: 39
  • more than 2 strokes is playing with yourself
    • View Profile
I finally got a bike!!!
« Reply #18 on: August 01, 2013, 10:28:52 PM »
That bike is 54 mm stock.  If your piston is 55mm and the cylinder is plated, that means somone had the cylinder stripped, bored and replated at +1mm. 

If your cylinder looks good, I suppose I'd just buy a 55mm piston and be done...  otherwise, you could send it out to a plating shop and they may be able to get you back down to 54mm...   not sure on that one. 
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
2003 RM250
2004 RM250
2001 yz125
1986 trx310R
1989 trx250R

Offline JoeyG

  • Novice
  • *
  • Posts: 4
    • View Profile
I finally got a bike!!!
« Reply #19 on: August 10, 2013, 09:27:22 PM »
Well I got the cylinder off and it has a sleeve in it. Also the powervalve rod was broke and noticed that a piece of the exhaust bridge broke off. I don't think it will hurt anything but never know. The cylinder ended up being a 99 but the chassis is a 2000 or 2001 as I purchased a 99 exhaust and it doesn't fit. Found the intake boot that bolts to the reeds ripped and the carb is a keihin and not a mikuni. So I'm starting with stuff I have no idea if it works or not. This is turning I to quite the project. Piston and gasket kit will be in Tuesday so I hope to Have it up and running for Wed. Practice day at the track.
« Last Edit: December 31, 1969, 04:00:00 PM by ' »

Offline mj4trax

  • Junior
  • **
  • Posts: 39
  • more than 2 strokes is playing with yourself
    • View Profile
I finally got a bike!!!
« Reply #20 on: August 11, 2013, 10:52:41 PM »
good luck.

It's criminal what some owners do to their bikes.  I've had to learn from experience that condition is king when looking at bikes as repair costs from an irresponsible PO can add up REALLY quickly. 

If you do end up putting more $$ into the bike than you wanted to, make yourself feel better by thinking about the fact that you are resurrecting the bike and saving it from the scrapyard. 
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
2003 RM250
2004 RM250
2001 yz125
1986 trx310R
1989 trx250R

Offline JoeyG

  • Novice
  • *
  • Posts: 4
    • View Profile
I finally got a bike!!!
« Reply #21 on: August 13, 2013, 01:57:54 PM »
It amazes me as the more I dig into this bike the more things I find. Maybe it's just being anal but so many simple things that never got addressed. Worn throttle cables, Loose spokes, install all the proper hardware! In the end I will still have less in it than if I purchased a running bike and I'll know what's done just as I get older I can't see throwing money away by not doing simple maint.

As soon as I get a chance I'll post some pics. It a super tight budget build, just get it running so i can ride. 
« Last Edit: December 31, 1969, 04:00:00 PM by ' »