Topic: ticking noise only when given throttle...

[calj737]

They are probably from CruzinImage. When you get them loose, post a picture, that will tell you lots.

[Sparco195]

hey guys, sorry for the long wait, been pretty much stuck at the same point since youve last heard. been working on making a deal with this guy and picked up a nice 2000 sv650 with suspension swapped, cams, brand new riding gear, etc. something to ride while i tear into the cb.

They are probably from CruzinImage. When you get them loose, post a picture, that will tell you lots.

now, they do look a lot like the CruzinImage pistons on eBay (only place i can find them currently) but do i need to contact them to buy the retaining clips? all i can find are +3.00 rings and head gasket. do they have a website? 

[BomberMann650]

Sv650's are cool.  Test rode the k9 "gladius" model once.  Felt real good.

One of these days I might be able to afford a newer sv with the dual sparkplug heads.

[Pat_at_APE]

If the rod "wiggled alot up and down" then it's surely out of round on the big end ID.   Only a few ten thousands out of round is enough to make it unusable. 

Start shopping for a replacement. 

Also, replace all the wrist pins together.  You want a set that matches in weight. 

Regards,
Pat at APE

[Pat_at_APE]

Also, get someone to measure that rod journal on the crankshaft with a micrometer in a couple spots along the diameter.   It must be round also.   If not, we can repair the journal for you. 

Regards,
Pat at APE

[Sparco195]

hey guys! been a long time! we have had one brutal winter! working on the bike has been too much of a chore lately, but today I have finally returned to it.

i found someone locally selling a used crank shaft with connecting rods, bearings, etc. a complete bottom end. would it be a good idea to take both mine and this new one apart and combine the better parts of the two to make a better combination? or should i take mine apart and skip on buying it.

Im in the mindset that i basically want to just buy a bunch of parts all at once and just spend a weekend trying to get the motor all taken apart and try to really catch up on this project. Im under the impression that my current connecting rod and bearings and possibly crank are all toast. what are your thoughts?

also does anybody know the thread size or any tips on removing the rotor from the crank? that's where I've been stuck for almost 2 months now...


ALSO! why dont my intake manifolds have the screws for vacuum/carb sync! where would i hook it up! my intake manifolds have no screw heads sticking out! guys! what gives!?

[BomberMann650]

Aww man I just deleted my example pic of a basic flywheel puller on the lh rotor!  But it was easy to accomplish.  Loosen the big bolt, attach the three toed puller to a secure spot on the rotor.  Bring up the tension rod.  And tap the rotor a few times with a hammer.  Try not to jump when it finally comes free and hits the bolt flange

F model bikes with 022a/069a carbs had the sync barb inset on the manifold.  K bikes with pd carbs have an attachment point on the carb body

[calj737]

i found someone locally selling a used crank shaft with connecting rods, bearings, etc. a complete bottom end. would it be a good idea to take both mine and this new one apart and combine the better parts of the two to make a better combination? or should i take mine apart and skip on buying it.

Im in the mindset that i basically want to just buy a bunch of parts all at once and just spend a weekend trying to get the motor all taken apart and try to really catch up on this project. Im under the impression that my current connecting rod and bearings and possibly crank are all toast. what are your thoughts?

This is unnecessary because until you actually diagnose the condition of your pistons, rods, crank and bearings, you are guessing. It would be unusual to "toast" a crank. What is far more likely is the rod bearing if there are very high miles (>60,000) and most of the mileage saw poor maintenance and care.

If you are determined to pull your motor down, do so then take the cases, crank, rods and pistons (keep them ordered together) and the jugs to a machinist and have them measure it all with micrometers. THEN decide what needs to be replaced and how you want to do so.

You need a rotor puller. For the life of me, I can't recall the correct diameter and pitch at the moment, but "I think" its 18mmx1.5??? Someone will correct or confirm that now that I've said it 

[Sparco195]

well, i already offered the ebay seller $25 and had to commit to it, luckily hes only about 45 minutes away so i was able to avoid the $25 shipping. oh well haha. it'll still be a cool paperweight if not needed...

for the puller, i have found with my research the bolt and thread sizes: 16x1.5 (most common one found so far) 20x1.5, and now im hearing 18x1.5. would just a universal 3 tooth puller work? im tempted to go borrow one from my buddy. 

very interesting about the vacuum ports being on the carbs, ill have to go take a closer look.

[Sparco195]

finally got the crankshaft out! but as i was painting engine covers and pieces and taking measurements. I noticed the crank bearings on the no.1 end of the crank look very worn, i didnt even bother to take and plastigauge measurements yet. i think i should just replace them first? i can post a picture if you guys want, but how do i find new/used ones that will fit? i noticed there is a number stamped on them? does that mean anything?

i really need to start assembling things back up for the summer

[RAFster122s]

Main crank bearings are green/brown/red? and you will need to plastigage the bearings to see how much wear you have. What does your crank look like? If it shows wear you may need to address this.
APE in Cali can lighten if you wish and service your crank and repair any problems and rebalance it.
good idea to have a great SOHC familiar shop like APE to do this kind of work. Or have Mike R. in Mass have the work done at a place he works with. Another shop that can deal with it is in MI, CycleX.

[Sparco195]

the bearings are brown ish on the back side.

two of the bearings look really worn down, i think measuring how worn they are is just kinda pointless, when i need to replace them anyway.

[TwoTired]

If you are taking the crank out of a 550, best to put in a new primary chain on a higher mileage motor.